{"id":27729,"date":"2025-10-26T22:52:12","date_gmt":"2025-10-26T21:52:12","guid":{"rendered":"https:\/\/www.bitshopper.de\/blog\/new-release-of-the-cgminer-gekko-v4-13-5-mining-software\/"},"modified":"2026-06-02T22:58:08","modified_gmt":"2026-06-02T20:58:08","slug":"new-release-of-the-cgminer-gekko-v4-13-5-mining-software","status":"publish","type":"post","link":"https:\/\/www.bitshopper.de\/en\/blog\/new-release-of-the-cgminer-gekko-v4-13-5-mining-software\/","title":{"rendered":"New Release of the cgminer-gekko v4.13.5 Mining Software"},"content":{"rendered":"\n<p><strong>TL;DR:<\/strong> To support the launch of the new <a href=\"https:\/\/www.bitshopper.de\/en\/?post_type=product&amp;p=27639\">GekkoScience Compac A2<\/a>, <a href=\"https:\/\/kano.is\/gekko.php\">Kano<\/a> released <strong>cgminer-gekko v4.13.5<\/strong> in late October 2025. The release introduces support for the <strong>Compac A2<\/strong> with Bitmain <strong>BM1370 ASIC<\/strong> (7 nm, up to 1 TH\/s), keeps full backward compatibility with the R909 and Compac F, and adds three major new features: a per-<strong>API adjustable core voltage<\/strong>, <strong>automatic safety shutdown on chip overtemperature<\/strong>, and a <strong>live display of temperature and per-chip voltage<\/strong> right inside the CGMiner terminal. This article walks you through installation, configuration and tuning of cgminer-gekko v4.13.5 for the Compac A2.  <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-was-ist-neu-in-cgminer-gekko-v4-13-5\">What&#8217;s new in cgminer-gekko v4.13.5?<\/h2>\n\n<p>cgminer-gekko v4.13.5 is the official mining software for all GekkoScience USB-stick and pod miners. It is maintained by <strong>Kano<\/strong> in the repository <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>. Version v4.13.5 was built specifically for the launch of the <strong>Compac A2<\/strong> and supersedes v4.13.1 (Compac A1). <\/p>\n\n<p><strong>Key new features at a glance:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Support for the <strong>GekkoScience Compac A2<\/strong> with Bitmain BM1370 ASIC (single-chip, 7 nm).<\/li>\n\n\n\n<li><strong>Core voltage (CoreV) adjustable via the Java API<\/strong> using the new command <code>ascset|0,corev,&lt;mV&gt;<\/code>.<\/li>\n\n\n\n<li><strong>Real-time temperature protection:<\/strong> the miner stops automatically if the chip temperature gets too high and restarts as soon as it cools down.<\/li>\n\n\n\n<li><strong>Live display<\/strong> of the ASIC temperature and per-chip voltage right in the CGMiner terminal (example: <code>47C 270mV<\/code>).<\/li>\n\n\n\n<li><strong>New API command<\/strong> <code>zeromaxt<\/code> to reset the recorded maximum chip temperature.<\/li>\n\n\n\n<li> <code>--gekko-mine2<\/code> <strong>is now ignored<\/strong> \u2013 the optimized mine2 engine is the default for all Gekko miners.<\/li>\n<\/ul>\n\n<p>Full backward compatibility: v4.13.5 still supports the <strong>Compac A1, Compac F and Terminus R909<\/strong> out of the box.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-installation-und-update-von-cgminer-gekko-v4-13-5\">Installation and Update of cgminer-gekko v4.13.5<\/h2>\n\n<p>Detailed step-by-step installation guides for each operating system are available in our support section:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.bitshopper.de\/support\/anleitungen\/compac-a2\/compac-a2-inbetriebnahme-windows\/\">Compac A2 setup on Windows<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.bitshopper.de\/support\/anleitungen\/compac-a2\/compac-a2-inbetriebnahme-linux-raspberry-pi\/\">Compac A2 setup on Linux \/ Raspberry Pi<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.bitshopper.de\/support\/anleitungen\/compac-a2\/compac-a2-inbetriebnahme-mac\/\">Compac A2 setup on macOS<\/a><\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\" id=\"h-cgminer-gekkoscience-branch-git-repository\">CGMiner Gekkoscience Branch \u2013 Git Repository<\/h3>\n\n<p>The official Git master is maintained by Kano at: <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>. It is a maintained fork of the original CGMiner by Con Kolivas. Always download from the official repository \u2013 third-party forks (e.g. <code>wareck\/cgminer-gekko<\/code>) have known security issues and must be avoided.   <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-build-unter-linux-ubuntu-raspberry-pi-update\">Build on Linux \/ Ubuntu \/ Raspberry Pi (Update)<\/h3>\n\n<pre class=\"wp-block-code\"><code>sudo apt-get update\nsudo apt-get upgrade -y\ncd ~\/cgminer\ngit pull\nCFLAGS=\"-O2 -march=native -fcommon\" .\/autogen.sh --enable-gekko --enable-icarus\nmake clean\nmake\nsudo apt-get install -y openjdk-8-jre-headless<\/code><\/pre>\n\n<h3 class=\"wp-block-heading\" id=\"h-neuinstallation-unter-linux-ubuntu-raspberry-pi\">Fresh install on Linux \/ Ubuntu \/ Raspberry Pi<\/h3>\n\n<pre class=\"wp-block-code\"><code>sudo apt-get update\nsudo apt-get upgrade -y\nsudo apt-get install -y build-essential autoconf automake libtool pkg-config \\\n  libcurl4-openssl-dev libudev-dev libusb-1.0-0-dev libncurses5-dev zlib1g-dev git\ncd ~\ngit clone https:\/\/github.com\/kanoi\/cgminer.git\ncd cgminer\nCFLAGS=\"-O2 -march=native -fcommon\" .\/autogen.sh --enable-gekko --enable-icarus\nmake\nsudo apt-get install -y openjdk-8-jre-headless<\/code><\/pre>\n\n<h3 class=\"wp-block-heading\" id=\"h-windows-10-11-32-bit-binary\">Windows 10\/11 (32-bit binary)<\/h3>\n\n<p>The precompiled Windows binary (v4.13.5) is available directly from Kano: <a href=\"https:\/\/kano.is\/cgminer.php\">https:\/\/kano.is\/cgminer.php<\/a>.On Windows, install the USB driver via Zadig (details in the <a href=\"https:\/\/github.com\/kanoi\/cgminer\/blob\/master\/README#L611\">README in the CGMiner repository<\/a>). <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-macos-intel-amp-apple-silicon\">macOS (Intel &amp; Apple Silicon)<\/h3>\n\n<p>The macOS build guide (tested on Big Sur and later, both Intel and M1\/M2\/M3) is at <a href=\"https:\/\/github.com\/kanoi\/cgminer\/blob\/master\/mac-build.txt\">https:\/\/github.com\/kanoi\/cgminer\/blob\/master\/mac-build.txt<\/a>.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-cgminer-starten\">Running CGMiner<\/h2>\n\n<h3 class=\"wp-block-heading\" id=\"h-linux\">Linux<\/h3>\n\n<pre class=\"wp-block-code\"><code>.\/cgminer -o stratum+tcp:\/\/stratum.kano.is:3333 -u 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr -p x --suggest-diff 442<\/code><\/pre>\n\n<p>or<\/p>\n\n<pre class=\"wp-block-code\"><code>.\/cgminer -c gekko.conf<\/code><\/pre>\n\n<h3 class=\"wp-block-heading\" id=\"h-windows\">Windows<\/h3>\n\n<pre class=\"wp-block-code\"><code>cgminer.exe -o stratum+tcp:\/\/stratum.kano.is:3333 -u 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr -p x --suggest-diff 442<\/code><\/pre>\n\n<p>or<\/p>\n\n<pre class=\"wp-block-code\"><code>cgminer.exe -c gekko.conf<\/code><\/pre>\n\n<h3 class=\"wp-block-heading\" id=\"h-macos\">macOS<\/h3>\n\n<pre class=\"wp-block-code\"><code>cgminer -o stratum+tcp:\/\/stratum.kano.is:3333 -u 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr -p x --suggest-diff 442<\/code><\/pre>\n\n<p>or<\/p>\n\n<pre class=\"wp-block-code\"><code>cgminer -c gekko.conf<\/code><\/pre>\n\n<p>In all examples, replace <code>1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr<\/code> with your own <code>benutzername.worker<\/code> on the pool. If you want to donate hashrate (or Bitcoin) to Sidehack (GekkoScience), feel free to keep the address <code>1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr<\/code> . <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-beispiel-einer-gekko-conf-fur-den-compac-a2\">Sample gekko.conf for the Compac A2<\/h2>\n\n<pre class=\"wp-block-code\"><code>{\n  \"pools\" : &#091;\n    {\n      \"url\"  : \"stratum+tcp:\/\/stratum.kano.is:3333\",\n      \"user\" : \"benutzername.worker\",\n      \"pass\" : \"x\"\n    }\n  ],\n  \"gekko-compaca2-start-freq\" : \"300\",\n  \"gekko-compaca2-freq\"       : \"300\",\n  \"gekko-compaca2-corev\"      : \"270\",\n  \"gekko-compaca2-detect\"     : true,\n  \"gekko-r909-freq\"           : \"450\",\n  \"gekko-r909-detect\"         : true,\n  \"gekko-compacf-freq\"        : \"400\",\n  \"gekko-compacf-detect\"      : true,\n  \"gekko-tune2\"               : \"60\",\n  \"suggest-diff\"              : \"442\",\n  \"failover-only\"             : true,\n  \"api-listen\"                : true,\n  \"api-port\"                  : \"4028\",\n  \"api-allow\"                 : \"W:192.168.1.0\/24,W:127.0.0.1\"\n}<\/code><\/pre>\n\n<p>Replace <code>benutzername.worker<\/code> with your own pool account and adjust <code>192.168.1.0\/24<\/code> to match your local network. If you run multiple CGMiner instances on the same host, give each instance its own API port (<code>4028<\/code>, <code>4029<\/code>, \u2026). <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-frequenz-und-spannungs-einstellungen-fur-den-compac-a2\">Frequency and Voltage Settings for the Compac A2<\/h2>\n\n<p>Default settings for each Gekko miner in v4.13.5:<\/p>\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Miner<\/th><th>Start frequency<\/th><th>Frequency<\/th><th>Core-Voltage<\/th><\/tr><\/thead><tbody><tr><td><strong><a href=\"https:\/\/www.bitshopper.de\/en\/?post_type=product&amp;p=27639\">Compac A2<\/a> (NEW)<\/strong><\/td><td>300 MHz<\/td><td>300 MHz<\/td><td>270 mV<\/td><\/tr><tr><td><a href=\"https:\/\/www.bitshopper.de\/en\/shop\/gekkoscience-en\/compac-f\/\">Compac F<\/a><\/td><td>200 MHz<\/td><td>200 MHz<\/td><td>\u2013<\/td><\/tr><tr><td><a href=\"https:\/\/www.bitshopper.de\/en\/shop\/gekkoscience-en\/r909\/\">Terminus R909<\/a><\/td><td>400 MHz<\/td><td>450 MHz<\/td><td>(pot, ~4,6 V)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p>If you run <strong>multiple different Gekko miners<\/strong> on the same CGMiner instance, you can combine the frequency arguments:<\/p>\n\n<pre class=\"wp-block-code\"><code>--gekko-compaca2-freq 300 --gekko-compacf-freq 400 --gekko-r909-freq 450<\/code><\/pre>\n\n<p>Use <code>--gekko-compaca2-detect<\/code>, <code>--gekko-compacf-detect<\/code> and <code>--gekko-r909-detect<\/code> to select which miners CGMiner should pick up. If you pass <strong>no<\/strong> <code>*-detect<\/code> option, <strong>all<\/strong> available Gekko miners are used. <\/p>\n\n<p>You can also restrict CGMiner to specific miners by serial number:<\/p>\n\n<pre class=\"wp-block-code\"><code>--gekko-serial GS-10000001,GS-10000002<\/code><\/pre>\n\n<p>The <code>--gekko-tune2 60<\/code> option re-enables periodic frequency recalibration when environmental conditions improve (e.g. better cooling). The value <code>60<\/code> means &#8220;check once per 60 minutes&#8221;; valid range: 30\u20139999 minutes. Default: off.  <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-erste-tuning-schritte-fur-den-compac-a2\">First Tuning Steps for the Compac A2<\/h2>\n\n<p>Out of the box, the Compac A2 runs stable at <strong>300 MHz \/ 270 mV \u2248 600 GH\/s @ ~10 W<\/strong> (eco mode). To dial in higher hashrates, follow this sequence: <\/p>\n\n<ol class=\"wp-block-list\">\n<li><strong>Step frequency up by 25 MHz<\/strong> at a time as long as hashrate scales cleanly.<\/li>\n\n\n\n<li>If hashrate plateaus or drops: <strong>raise the core voltage by 5 mV<\/strong> at a time (max approx. 270 mV).<\/li>\n\n\n\n<li>Step frequency up by 25 MHz again.<\/li>\n\n\n\n<li><strong>Keep an eye on chip temperature<\/strong> \u2013 it should not stay above approximately 70 \u00b0C.<\/li>\n\n\n\n<li>If the next CoreV step delivers <strong>no<\/strong> improvement or temperatures climb too high, step back one notch. That is your sweet spot. <\/li>\n<\/ol>\n\n<p>Typical operating points for the Compac A2:<\/p>\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Target hashrate<\/th><th>Frequency<\/th><th>Core-Voltage<\/th><th>Power<\/th><th>Use case<\/th><\/tr><\/thead><tbody><tr><td>~600 GH\/s<\/td><td>~300 MHz<\/td><td>250 mV<\/td><td>~10 W<\/td><td>Quiet, low-power 24\/7 solo-lottery mining<\/td><\/tr><tr><td>~800 GH\/s<\/td><td>400 MHz<\/td><td>270 mV<\/td><td>13\u201314 W<\/td><td>Factory setting, safe and stable<\/td><\/tr><tr><td>~1 TH\/s<\/td><td>500 MHz<\/td><td>300 mV<\/td><td>16\u201317 W<\/td><td>Maximum hashrate for solo mining<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p>Rule of thumb: <strong>Hashrate (GH\/s) \u2248 2 \u00d7 frequency (MHz)<\/strong>.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-tuning-optionen-uber-die-api-java\">Tuning Options via the API (Java)<\/h2>\n\n<p>All tuning options for the Compac A2 are controlled via the <strong>CGMiner Java API<\/strong>. This lets you build complex, sensor- or event-driven setups \u2013 for example coupling the miner to a PV system or home automation that does not need to run on the same controller as CGMiner itself. <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-api-aktivieren\">Enable the API<\/h3>\n\n<pre class=\"wp-block-code\"><code>--api-listen --api-allow \"W:192.168.1.0\/24,W:127.0.0.1\"<\/code><\/pre>\n\n<p><code>127.0.0.1<\/code> is the loopback address of the controller itself on which CGMiner is running. Adjust <code>192.168.1.0\/24<\/code> to match your local network. When the API starts successfully you will see: <\/p>\n\n<pre class=\"wp-block-code\"><code>API running in IP access mode on port 4028 (10)<\/code><\/pre>\n\n<p>Default port is <code>4028<\/code>. With multiple CGMiner instances on one host, every instance needs its own port: <\/p>\n\n<pre class=\"wp-block-code\"><code>--api-listen --api-allow \"W:192.168.1.0\/24,W:127.0.0.1\" --api-port 4029<\/code><\/pre>\n\n<p>A Java installation is required on whichever machine queries the API. The Linux build steps above already install Java. <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-statistiken-auslesen\">Read statistics<\/h3>\n\n<pre class=\"wp-block-code\"><code>java API estats minerIP<\/code><\/pre>\n\n<p>Sample output from a live miner:<\/p>\n\n<pre class=\"wp-block-code\"><code>&#091;STATS]       =&gt; 0\n&#091;Serial]      =&gt; GS-10008000\n&#091;WaitFactor0] =&gt; 0.500000\n&#091;WaitFactor]  =&gt; 2.000000\n&#091;Jobs]        =&gt; 10081\/12972\/12980\/12972\/12980\n&#091;JobsAvgms]   =&gt; 4.62\/4.63\/4.62\/4.63\/4.62<\/code><\/pre>\n\n<p>If you query from <code>localhost<\/code>, you can omit the IP:<\/p>\n\n<pre class=\"wp-block-code\"><code>java API estats<\/code><\/pre>\n\n<h3 class=\"wp-block-heading\" id=\"h-neu-in-v4-13-5-core-voltage-per-api-setzen\">NEW in v4.13.5: set core voltage via AP<\/h3>\n\n<pre class=\"wp-block-code\"><code>java API \"ascset|0,corev,250\" minerIP<\/code><\/pre>\n\n<p>Valid range: <strong>0 mV to 500 mV<\/strong>. Kano&#8217;s recommendation: <strong>do not go above 270 mV<\/strong>. Useful values are 250\u2013270 mV depending on your tuning goal and temperature.  <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-neu-in-v4-13-5-hochsttemperatur-zurucksetzen\">NEW in v4.13.5: reset maximum temperature<\/h3>\n\n<p>The Compac A2 internally records the highest chip temperature ever measured and the time it occurred. You can reset that value via the API: <\/p>\n\n<pre class=\"wp-block-code\"><code>java API \"ascset|0,zeromaxt\" minerIP<\/code><\/pre>\n\n<h3 class=\"wp-block-heading\" id=\"h-frequenz-fur-alle-chips-setzen-z-b-400-mhz\">Set frequency for all chips (e.g. 400 MHz)<\/h3>\n\n<pre class=\"wp-block-code\"><code>java API \"ascset|0,freq,400\" minerIP<\/code><\/pre>\n\n<p>If the frequency is not locked, the plateau code kicks in and tries to find the optimum automatically. <strong>Note for the Compac A2<\/strong>: Because the A2 has only <strong>one ASIC<\/strong> (BM1370), per-chip addressing (<code>ascset|0,chip,0:410<\/code>) ) does not apply to this miner \u2013 that option remains available for the R909 and Compac F.<\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-frequenzen-sperren-entsperren\">Lock \/ unlock frequencies<\/h3>\n\n<pre class=\"wp-block-code\"><code>java API \"ascset|0,lockfreq\"   minerIP\njava API \"ascset|0,unlockfreq\" minerIP<\/code><\/pre>\n\n<p>CGMiner will no longer change the current frequencies automatically. If an ASIC stops responding (zombie), the lock is removed automatically and the miner is reset. <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-reset-bei-zu-niedriger-hashrate\">Reset on low hashrate<\/h3>\n\n<pre class=\"wp-block-code\"><code>java API \"ascset|0,require,0.65\" minerIP<\/code><\/pre>\n\n<p>By default, the miner is reset when current hashrate stays below <strong>65 %<\/strong> of the expected value. Valid range: 0.0 to 0.8. <code>0,0<\/code> disables automatic reset.<\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-wait-factor-nur-r909-compac-f\">Wait factor (R909 \/ Compac F only)<\/h3>\n\n<pre class=\"wp-block-code\"><code>java API \"ascset|0,waitfactor,0.6\" minerIP<\/code><\/pre>\n\n<p>Controls how often work is sent to the miner. Range: 0.01 to 2.0. Defaults: <strong>0.5 (Linux), 0.4 (Windows), 0.3 (Mac).<\/strong> <strong>The Compac A2 does not need this adjustment.<\/strong>  <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-usb-propagation-zeit-nur-r909-compac-f\">USB propagation time (R909 \/ Compac F only)<\/h3>\n\n<pre class=\"wp-block-code\"><code>java API \"ascset|0,usbprop,800\" minerIP<\/code><\/pre>\n\n<p>Range: 200\u20131000 \u00b5s. Default: 1000 \u00b5s. Lower values increase CPU usage.  <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-reset-eines-miners\">Reset a miner<\/h3>\n\n<pre class=\"wp-block-code\"><code>java API \"ascset|0,reset\" minerIP<\/code><\/pre>\n\n<p>When running multiple miners on one CGMiner instance, replace <code>0<\/code> with the <code>[STATS]<\/code> number of the target miner from the <code>estats<\/code> output (not the <code>[ID]<\/code> number \u2013 they are often, but not always, identical).<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-was-unterscheidet-die-software-fur-compac-a2-von-der-fur-compac-a1\">What&#8217;s Different in the Software for the Compac A2 vs. Compac A1?<\/h2>\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Software feature<\/th><th>Compac A1 (cgminer-gekko v4.13.1)<\/th><th>Compac A2 (cgminer-gekko v4.13.5)<\/th><\/tr><\/thead><tbody><tr><td>ASIC<\/td><td>2\u00d7 BM1362<\/td><td>1\u00d7 BM1370 (7 nm, same as Bitaxe Gamma)<\/td><\/tr><tr><td>Default frequency<\/td><td>300 MHz<\/td><td>300 MHz<\/td><\/tr><tr><td>Default core voltage<\/td><td>300 mV<\/td><td><strong>270 mV<\/strong><\/td><\/tr><tr><td>Core-Voltage per API einstellbar<\/td><td>no<\/td><td>yes (<code>ascset corev<\/code>)<\/td><\/tr><tr><td>Chip temperature protection (auto stop on overheat)<\/td><td>limited<\/td><td>yes<\/td><\/tr><tr><td>Live temp + voltage display in terminal<\/td><td>limited<\/td><td>yes (e.g. <code>47C 270mV<\/code>) <\/td><\/tr><tr><td><code>zeromaxt<\/code> (reset max temperature via API)<\/td><td>no<\/td><td>yes<\/td><\/tr><tr><td>PWM fan control (Icepac)<\/td><td>no<\/td><td>yes (via API)<\/td><\/tr><tr><td><code>--gekko-mine2<\/code><\/td><td>Optional<\/td><td>Ignored (mine2 is the default)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\" id=\"h-web-dashboard-mit-miner-php\">Web Dashboard with miner.php<\/h2>\n\n<p>The CGMiner directory ships with a ready-made PHP file <code>miner.php<\/code> that lets you view your miner stats in a browser. On Ubuntu \/ Raspberry Pi: <\/p>\n\n<pre class=\"wp-block-code\"><code>sudo apt install apache2 php\nsudo cp -v miner.php \/var\/www\/html\/<\/code><\/pre>\n\n<p>Configuration in <code>\/var\/www\/html\/myminer.php<\/code>:<\/p>\n\n<pre class=\"wp-block-code\"><code>&lt;?php\n$rigs = array('192.168.0.10:4028:CompacA2');\n$readonly = true;\n$allowgen = true;\n$rigbuttons = false;\n$rigipsecurity = false;\n$customsummarypages = array('Gekko' =&gt; 1, 'GekkoChips' =&gt; 1);\n?&gt;<\/code><\/pre>\n\n<p>Open it at <code>http:\/\/192.168.0.X\/miner.php<\/code>.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-warnung-vor-inoffiziellen-cgminer-forks\">Warning About Unofficial CGMiner Forks<\/h2>\n\n<p>Kano explicitly warns against the following repositories \u2013 they contain known security issues, a solo-mining bug that can send coins to unknown addresses, and unknown patches:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>DO NOT<\/strong> use: <code>https:\/\/github.com\/wareck\/cgminer-gekko<\/code><\/li>\n\n\n\n<li><strong>DO NOT<\/strong> use: <code>https:\/\/github.com\/W1T3H4T\/cgminer-Raspi\/<\/code><\/li>\n<\/ul>\n\n<p>Use only the official repository at <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a> or the official Windows binaries at <a href=\"https:\/\/kano.is\/cgminer.php\">https:\/\/kano.is\/cgminer.php<\/a>.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-weiterfuhrende-links\">Further Reading<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.bitshopper.de\/en\/?post_type=product&amp;p=27639\">Product page GekkoScience Compac A2 (1 TH\/s, BM1370)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/kano.is\/gekko.php\">Kano \u2013 official cgminer v4.13.5 release page<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.bitshopper.de\/en\/?p=23529\">Previous release: cgminer-gekko v4.13.1 for the Compac A1<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.bitshopper.de\/en\/shop\/gekkoscience-en\/7-port-usb-hub\/\">GekkoScience 7-Port USB hub with 6-pin PCIe<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/github.com\/kanoi\/cgminer\">CGMiner Master Git-Repository (Kano)<\/a><\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"h-haufig-gestellte-fragen-faq-zu-cgminer-gekko-v4-13-5-und-dem-compac-a2\">Frequently Asked Questions (FAQ) about cgminer-gekko v4.13.5 and the Compac A2<\/h2>\n\n\t\t<section class=\"content-faqs\">\r\n\t\t\t\t\t\t\t<h2 class=\"content-faqs__heading\">\r\n\t\t\t\t\tFrequently Asked Questions\t\t\t\t<\/h2>\r\n\t\t\t\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tWhat is cgminer-gekko v4.13.5?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tcgminer-gekko v4.13.5 is the official mining software for all GekkoScience miners, maintained by Kano at <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>. Version v4.13.5 was released in late May 2026 and adds first-time support for the new <strong>GekkoScience Compac A2<\/strong> USB stick miner powered by the Bitmain BM1370 ASIC.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tWhich miners are supported by cgminer-gekko v4.13.5?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tcgminer-gekko v4.13.5 supports all current GekkoScience miners: the new <strong>Compac A2<\/strong>, the <strong>Compac A1<\/strong>, the <strong>Compac F<\/strong> and the pod miner <strong>Terminus R909<\/strong>. Full backward compatibility with older Gekko generations is preserved.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tWhere do I get the official binaries and source code?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tKano maintains the source at <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>. Precompiled Windows binaries (32-bit) are available at <a href=\"https:\/\/kano.is\/cgminer.php\">https:\/\/kano.is\/cgminer.php<\/a>. On Linux, Raspberry Pi and macOS, CGMiner is built directly from source \u2013 the steps are listed in this article and in the <a href=\"https:\/\/www.bitshopper.de\/support\/anleitungen\/compac-a2\/\">setup guides at bitshopper.de<\/a>.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tWhat&#039;s new in v4.13.5 compared to v4.13.1?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tDrThree things: First, <strong>support for the Compac A2<\/strong> with the BM1370 ASIC. Second, the ability to <strong>set the A2's core voltage via the Java API<\/strong> (ascset|0,corev,). Third, an <strong>automatic chip-temperature protection<\/strong> with live display of ASIC temperature and per-chip voltage directly in the CGMiner terminal. In addition, the mine2 engine is now the default and --gekko-mine2 is ignored.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tHow do I configure the Compac A2 in gekko.conf?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tAdd the default values to your gekko.conf, \"gekko-compaca2-start-freq\": \"300\", \"gekko-compaca2-freq\": \"300\", \"gekko-compaca2-corev\": \"270\" and \"gekko-compaca2-detect\": true. With these settings the A2 runs stable at around <strong>600 GH\/s and approximately 10 W<\/strong>. The full sample file is in the article above.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tWhich core voltage should I set for the Compac A2?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tThe factory setting of <strong>270 mV<\/strong> is safe and stable. Kano explicitly recommends <strong>not exceeding 270 mV<\/strong>. In low-power eco mode, 250 mV at 300 MHz is enough for 600 GH\/s. For overclocking up to 1 TH\/s, 270\u2013300 mV at 500 MHz is feasible \u2013 keep chip temperature below approximately 70 \u00b0C.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tHow do I set the Compac A2 core voltage via the API?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tse the new API command: java API \"ascset|0,corev,250\" minerIP. Valid range is 0\u2013500 mV; useful values are 250\u2013270 mV. With multiple miners on the same CGMiner instance, replace 0 with the miner's [STATS] number from the estats output.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tDoes the Compac A2 shut down on overtemperature?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tYes. The Compac A2 monitors its ASIC temperature out of the box. If it exceeds a critical threshold, <strong>CGMiner stops the miner automatically<\/strong> and restarts it as soon as the chip cools down. The terminal continuously displays current temperature and per-chip voltage (e.g. 47C 270mV).\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tWhat is the hashrate rule of thumb for the Compac A2?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\t<strong>Hashrate (GH\/s) \u2248 2 \u00d7 frequency (MHz).<\/strong> So 300 MHz delivers about 600 GH\/s, 400 MHz about 800 GH\/s, and 500 MHz about 1,000 GH\/s (= 1 TH\/s).\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tDo I need an active USB hub for the Compac A2?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tYes, strongly recommended. At full power, the Compac A2 draws up to 17 W \u2013 this exceeds what any regular USB port can supply and may damage it. Use an active USB hub with its own power supply (5 V, 2\u20134 A per port), for example the <a href=\"https:\/\/www.bitshopper.de\/shop\/gekkoscience\/7-port-usb-hub\/\">GekkoScience 7-Port USB hub<\/a>.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tWhat is the difference between Compac A1 and Compac A2?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tThe Compac A2 uses a single <strong>Bitmain BM1370 ASIC<\/strong> (7 nm, the same chip as in the Bitaxe Gamma) instead of two BM1362. As a result it reaches <strong>up to 1 TH\/s instead of 350\u2013500 GH\/s<\/strong> and is nearly twice as efficient at around <strong>16\u201317 W\/TH<\/strong> vs. ~30 W\/TH for the A1. In addition, core voltage is software-adjustable (not soldered) and the included <strong>Icepac fan is PWM-controlled<\/strong> and directly addressable via the API.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tDoes cgminer-gekko v4.13.5 work on the Raspberry Pi?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tYes. CGMiner runs on both x86 Linux and ARM Linux, so any Raspberry Pi from model 3 onwards works fine. Important: do <strong>not<\/strong> connect the A2 directly to a Pi USB port \u2013 use an active USB hub with its own power supply.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tHow do I upgrade from v4.13.1 to v4.13.5?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tOn Linux \/ Raspberry Pi, run git pull in the CGMiner directory followed by make clean &amp;&amp; make. On Windows, download the current binary from <a href=\"https:\/\/kano.is\/cgminer.php\">https:\/\/kano.is\/cgminer.php<\/a>. On macOS, follow the build guide at <a href=\"https:\/\/github.com\/kanoi\/cgminer\/blob\/master\/mac-build.txt\">https:\/\/github.com\/kanoi\/cgminer\/blob\/master\/mac-build.txt<\/a>.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tIs there English support available for the Compac A2?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tYes. bitshopper.de provides customer support in German and English by email (<a href=\"mailto:info@bitshopper.de\">info@bitshopper.de<\/a>) and phone (<a href=\"tel:+491799754353\">+49 179 9754353<\/a>), llustrated setup guides for Windows, Linux\/Raspberry Pi and macOS, and shipping from Germany.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"content-faqs__item\">\r\n\t\t\t\t\t<h3 class=\"content-faqs__question\">\r\n\t\t\t\t\t\tWhich CGMiner forks should I avoid?\t\t\t\t\t<\/h3>\r\n\t\t\t\t\t<div class=\"content-faqs__answer\">\r\n\t\t\t\t\t\tKano explicitly warns against https:\/\/github.com\/wareck\/cgminer-gekko and https:\/\/github.com\/W1T3H4T\/cgminer-Raspi\/. Both contain unknown patches, security risks and a solo-mining bug that can send coins to unknown addresses. Use only <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>.\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/section>\r\n\t\t\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n<p><strong>Sources:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/kano.is\/gekko.php\">&gt;Kano \u2013 official cgminer v4.13.5 release page with CompacA2 support<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.bitshopper.de\/en\/?post_type=product&amp;p=27639\">bitshopper.de \u2013 product page GekkoScience Compac A2 (BM1370, 1 TH\/s)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.bitshopper.de\/en\/?p=23529\">bitshopper.de \u2013 previous blog post on cgminer-gekko v4.13.1 (Compac A1)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/github.com\/kanoi\/cgminer\">GitHub \u2013 official CGMiner repository by Kano<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>TL;DR: To support the launch of the new GekkoScience Compac A2, Kano released cgminer-gekko v4.13.5 in late October 2025. The release introduces support for the Compac A2 with Bitmain BM1370 ASIC (7 nm, up to 1 TH\/s), keeps full backward compatibility with the R909 and Compac F, and adds three major new features: a per-API [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":27727,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[210],"tags":[222,200],"class_list":["post-27729","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software-en","tag-cgminer-en","tag-gekkoscience-en"],"acf":{"post_faqs":[{"faq_question":"What is cgminer-gekko v4.13.5?","faq_active":true,"faq_answer":"cgminer-gekko v4.13.5 is the official mining software for all GekkoScience miners, maintained by Kano at <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>. Version v4.13.5 was released in late May 2026 and adds first-time support for the new <strong>GekkoScience Compac A2<\/strong> USB stick miner powered by the Bitmain BM1370 ASIC. "},{"faq_question":"Which miners are supported by cgminer-gekko v4.13.5?","faq_active":true,"faq_answer":"cgminer-gekko v4.13.5 supports all current GekkoScience miners: the new <strong>Compac A2<\/strong>, the <strong>Compac A1<\/strong>, the <strong>Compac F<\/strong> and the pod miner <strong>Terminus R909<\/strong>. Full backward compatibility with older Gekko generations is preserved. "},{"faq_question":"Where do I get the official binaries and source code?","faq_active":true,"faq_answer":"Kano maintains the source at <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>. Precompiled Windows binaries (32-bit) are available at <a href=\"https:\/\/kano.is\/cgminer.php\">https:\/\/kano.is\/cgminer.php<\/a>. On Linux, Raspberry Pi and macOS, CGMiner is built directly from source \u2013 the steps are listed in this article and in the <a href=\"https:\/\/www.bitshopper.de\/support\/anleitungen\/compac-a2\/\">setup guides at bitshopper.de<\/a>.  "},{"faq_question":"What's new in v4.13.5 compared to v4.13.1?","faq_active":true,"faq_answer":"DrThree things: First, <strong>support for the Compac A2<\/strong> with the BM1370 ASIC. Second, the ability to <strong>set the A2's core voltage via the Java API<\/strong> (<code>ascset|0,corev,<mV><\/code>). Third, an <strong>automatic chip-temperature protection<\/strong> with live display of ASIC temperature and per-chip voltage directly in the CGMiner terminal. In addition, the mine2 engine is now the default and <code>--gekko-mine2<\/code> is ignored.   "},{"faq_question":"How do I configure the Compac A2 in gekko.conf?","faq_active":true,"faq_answer":"Add the default values to your <code>gekko.conf<\/code>, <code>\"gekko-compaca2-start-freq\": \"300\"<\/code>, <code>\"gekko-compaca2-freq\": \"300\"<\/code>, <code>\"gekko-compaca2-corev\": \"270\"<\/code> and <code>\"gekko-compaca2-detect\": true<\/code>. With these settings the A2 runs stable at around <strong>600 GH\/s and approximately 10 W<\/strong>. The full sample file is in the article above.  "},{"faq_question":"Which core voltage should I set for the Compac A2?","faq_active":true,"faq_answer":"The factory setting of <strong>270 mV<\/strong> is safe and stable. Kano explicitly recommends <strong>not exceeding 270 mV<\/strong>. In low-power eco mode, 250 mV at 300 MHz is enough for 600 GH\/s. For overclocking up to 1 TH\/s, 270\u2013300 mV at 500 MHz is feasible \u2013 keep chip temperature below approximately 70 \u00b0C.   "},{"faq_question":"How do I set the Compac A2 core voltage via the API?","faq_active":true,"faq_answer":"se the new API command: <code>java API \"ascset|0,corev,250\" minerIP<\/code>. Valid range is 0\u2013500 mV; useful values are 250\u2013270 mV. With multiple miners on the same CGMiner instance, replace <code>0<\/code> with the miner's <code>[STATS]<\/code> number from the <code>estats<\/code> output.  "},{"faq_question":"Does the Compac A2 shut down on overtemperature?","faq_active":true,"faq_answer":"Yes. The Compac A2 monitors its ASIC temperature out of the box. If it exceeds a critical threshold, <strong>CGMiner stops the miner automatically<\/strong> and restarts it as soon as the chip cools down. The terminal continuously displays current temperature and per-chip voltage (e.g. <code>47C 270mV<\/code>).    "},{"faq_question":"What is the hashrate rule of thumb for the Compac A2?","faq_active":true,"faq_answer":"<strong>Hashrate (GH\/s) \u2248 2 \u00d7 frequency (MHz).<\/strong> So 300 MHz delivers about 600 GH\/s, 400 MHz about 800 GH\/s, and 500 MHz about 1,000 GH\/s (= 1 TH\/s)."},{"faq_question":"Do I need an active USB hub for the Compac A2?","faq_active":true,"faq_answer":"Yes, strongly recommended. At full power, the Compac A2 draws up to 17 W \u2013 this exceeds what any regular USB port can supply and may damage it. Use an active USB hub with its own power supply (5 V, 2\u20134 A per port), for example the <a href=\"https:\/\/www.bitshopper.de\/shop\/gekkoscience\/7-port-usb-hub\/\">GekkoScience 7-Port USB hub<\/a>.  "},{"faq_question":"What is the difference between Compac A1 and Compac A2?","faq_active":true,"faq_answer":"The Compac A2 uses a single <strong>Bitmain BM1370 ASIC<\/strong> (7 nm, the same chip as in the Bitaxe Gamma) instead of two BM1362. As a result it reaches <strong>up to 1 TH\/s instead of 350\u2013500 GH\/s<\/strong> and is nearly twice as efficient at around <strong>16\u201317 W\/TH<\/strong> vs. ~30 W\/TH for the A1. In addition, core voltage is software-adjustable (not soldered) and the included <strong>Icepac fan is PWM-controlled<\/strong> and directly addressable via the API.  "},{"faq_question":"Does cgminer-gekko v4.13.5 work on the Raspberry Pi?","faq_active":true,"faq_answer":"Yes. CGMiner runs on both x86 Linux and ARM Linux, so any Raspberry Pi from model 3 onwards works fine. Important: do <strong>not<\/strong> connect the A2 directly to a Pi USB port \u2013 use an active USB hub with its own power supply. "},{"faq_question":"How do I upgrade from v4.13.1 to v4.13.5?","faq_active":true,"faq_answer":"On Linux \/ Raspberry Pi, run <code>git pull<\/code> in the CGMiner directory followed by <code>make clean && make<\/code>. On Windows, download the current binary from <a href=\"https:\/\/kano.is\/cgminer.php\">https:\/\/kano.is\/cgminer.php<\/a>. On macOS, follow the build guide at <a href=\"https:\/\/github.com\/kanoi\/cgminer\/blob\/master\/mac-build.txt\">https:\/\/github.com\/kanoi\/cgminer\/blob\/master\/mac-build.txt<\/a>.  "},{"faq_question":"Is there English support available for the Compac A2?","faq_active":true,"faq_answer":"Yes. bitshopper.de provides customer support in German and English by email (<a href=\"mailto:info@bitshopper.de\">info@bitshopper.de<\/a>) and phone (<a href=\"tel:+491799754353\">+49 179 9754353<\/a>), llustrated setup guides for Windows, Linux\/Raspberry Pi and macOS, and shipping from Germany. "},{"faq_question":"Which CGMiner forks should I avoid?","faq_active":true,"faq_answer":"Kano explicitly warns against <code>https:\/\/github.com\/wareck\/cgminer-gekko<\/code> and <code>https:\/\/github.com\/W1T3H4T\/cgminer-Raspi\/<\/code>. Both contain unknown patches, security risks and a solo-mining bug that can send coins to unknown addresses. Use only <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>.  "}],"post_faqs_source":{"label":"FAQs","type":"repeater","formatted_value":[{"faq_question":"What is cgminer-gekko v4.13.5?","faq_active":true,"faq_answer":"cgminer-gekko v4.13.5 is the official mining software for all GekkoScience miners, maintained by Kano at <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>. Version v4.13.5 was released in late May 2026 and adds first-time support for the new <strong>GekkoScience Compac A2<\/strong> USB stick miner powered by the Bitmain BM1370 ASIC. "},{"faq_question":"Which miners are supported by cgminer-gekko v4.13.5?","faq_active":true,"faq_answer":"cgminer-gekko v4.13.5 supports all current GekkoScience miners: the new <strong>Compac A2<\/strong>, the <strong>Compac A1<\/strong>, the <strong>Compac F<\/strong> and the pod miner <strong>Terminus R909<\/strong>. Full backward compatibility with older Gekko generations is preserved. "},{"faq_question":"Where do I get the official binaries and source code?","faq_active":true,"faq_answer":"Kano maintains the source at <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>. Precompiled Windows binaries (32-bit) are available at <a href=\"https:\/\/kano.is\/cgminer.php\">https:\/\/kano.is\/cgminer.php<\/a>. On Linux, Raspberry Pi and macOS, CGMiner is built directly from source \u2013 the steps are listed in this article and in the <a href=\"https:\/\/www.bitshopper.de\/support\/anleitungen\/compac-a2\/\">setup guides at bitshopper.de<\/a>.  "},{"faq_question":"What's new in v4.13.5 compared to v4.13.1?","faq_active":true,"faq_answer":"DrThree things: First, <strong>support for the Compac A2<\/strong> with the BM1370 ASIC. Second, the ability to <strong>set the A2's core voltage via the Java API<\/strong> (<code>ascset|0,corev,<mV><\/code>). Third, an <strong>automatic chip-temperature protection<\/strong> with live display of ASIC temperature and per-chip voltage directly in the CGMiner terminal. In addition, the mine2 engine is now the default and <code>--gekko-mine2<\/code> is ignored.   "},{"faq_question":"How do I configure the Compac A2 in gekko.conf?","faq_active":true,"faq_answer":"Add the default values to your <code>gekko.conf<\/code>, <code>\"gekko-compaca2-start-freq\": \"300\"<\/code>, <code>\"gekko-compaca2-freq\": \"300\"<\/code>, <code>\"gekko-compaca2-corev\": \"270\"<\/code> and <code>\"gekko-compaca2-detect\": true<\/code>. With these settings the A2 runs stable at around <strong>600 GH\/s and approximately 10 W<\/strong>. The full sample file is in the article above.  "},{"faq_question":"Which core voltage should I set for the Compac A2?","faq_active":true,"faq_answer":"The factory setting of <strong>270 mV<\/strong> is safe and stable. Kano explicitly recommends <strong>not exceeding 270 mV<\/strong>. In low-power eco mode, 250 mV at 300 MHz is enough for 600 GH\/s. For overclocking up to 1 TH\/s, 270\u2013300 mV at 500 MHz is feasible \u2013 keep chip temperature below approximately 70 \u00b0C.   "},{"faq_question":"How do I set the Compac A2 core voltage via the API?","faq_active":true,"faq_answer":"se the new API command: <code>java API \"ascset|0,corev,250\" minerIP<\/code>. Valid range is 0\u2013500 mV; useful values are 250\u2013270 mV. With multiple miners on the same CGMiner instance, replace <code>0<\/code> with the miner's <code>[STATS]<\/code> number from the <code>estats<\/code> output.  "},{"faq_question":"Does the Compac A2 shut down on overtemperature?","faq_active":true,"faq_answer":"Yes. The Compac A2 monitors its ASIC temperature out of the box. If it exceeds a critical threshold, <strong>CGMiner stops the miner automatically<\/strong> and restarts it as soon as the chip cools down. The terminal continuously displays current temperature and per-chip voltage (e.g. <code>47C 270mV<\/code>).    "},{"faq_question":"What is the hashrate rule of thumb for the Compac A2?","faq_active":true,"faq_answer":"<strong>Hashrate (GH\/s) \u2248 2 \u00d7 frequency (MHz).<\/strong> So 300 MHz delivers about 600 GH\/s, 400 MHz about 800 GH\/s, and 500 MHz about 1,000 GH\/s (= 1 TH\/s)."},{"faq_question":"Do I need an active USB hub for the Compac A2?","faq_active":true,"faq_answer":"Yes, strongly recommended. At full power, the Compac A2 draws up to 17 W \u2013 this exceeds what any regular USB port can supply and may damage it. Use an active USB hub with its own power supply (5 V, 2\u20134 A per port), for example the <a href=\"https:\/\/www.bitshopper.de\/shop\/gekkoscience\/7-port-usb-hub\/\">GekkoScience 7-Port USB hub<\/a>.  "},{"faq_question":"What is the difference between Compac A1 and Compac A2?","faq_active":true,"faq_answer":"The Compac A2 uses a single <strong>Bitmain BM1370 ASIC<\/strong> (7 nm, the same chip as in the Bitaxe Gamma) instead of two BM1362. As a result it reaches <strong>up to 1 TH\/s instead of 350\u2013500 GH\/s<\/strong> and is nearly twice as efficient at around <strong>16\u201317 W\/TH<\/strong> vs. ~30 W\/TH for the A1. In addition, core voltage is software-adjustable (not soldered) and the included <strong>Icepac fan is PWM-controlled<\/strong> and directly addressable via the API.  "},{"faq_question":"Does cgminer-gekko v4.13.5 work on the Raspberry Pi?","faq_active":true,"faq_answer":"Yes. CGMiner runs on both x86 Linux and ARM Linux, so any Raspberry Pi from model 3 onwards works fine. Important: do <strong>not<\/strong> connect the A2 directly to a Pi USB port \u2013 use an active USB hub with its own power supply. "},{"faq_question":"How do I upgrade from v4.13.1 to v4.13.5?","faq_active":true,"faq_answer":"On Linux \/ Raspberry Pi, run <code>git pull<\/code> in the CGMiner directory followed by <code>make clean && make<\/code>. On Windows, download the current binary from <a href=\"https:\/\/kano.is\/cgminer.php\">https:\/\/kano.is\/cgminer.php<\/a>. On macOS, follow the build guide at <a href=\"https:\/\/github.com\/kanoi\/cgminer\/blob\/master\/mac-build.txt\">https:\/\/github.com\/kanoi\/cgminer\/blob\/master\/mac-build.txt<\/a>.  "},{"faq_question":"Is there English support available for the Compac A2?","faq_active":true,"faq_answer":"Yes. bitshopper.de provides customer support in German and English by email (<a href=\"mailto:info@bitshopper.de\">info@bitshopper.de<\/a>) and phone (<a href=\"tel:+491799754353\">+49 179 9754353<\/a>), llustrated setup guides for Windows, Linux\/Raspberry Pi and macOS, and shipping from Germany. "},{"faq_question":"Which CGMiner forks should I avoid?","faq_active":true,"faq_answer":"Kano explicitly warns against <code>https:\/\/github.com\/wareck\/cgminer-gekko<\/code> and <code>https:\/\/github.com\/W1T3H4T\/cgminer-Raspi\/<\/code>. Both contain unknown patches, security risks and a solo-mining bug that can send coins to unknown addresses. Use only <a href=\"https:\/\/github.com\/kanoi\/cgminer\">https:\/\/github.com\/kanoi\/cgminer<\/a>.  "}]}},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>cgminer-gekko v4.13.5 \u2013 Support f\u00fcr GekkoScience Compac A2<\/title>\n<meta name=\"description\" content=\"New cgminer-gekko v4.13.5 adds support for the GekkoScience Compac A2 (BM1370, 1 TH\/s): core-voltage via API, chip temperature protection, full setup guide.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.bitshopper.de\/en\/blog\/new-release-of-the-cgminer-gekko-v4-13-5-mining-software\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New Release of the cgminer-gekko v4.13.5 Mining Software\" \/>\n<meta property=\"og:description\" content=\"New cgminer-gekko v4.13.5 adds 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