{"id":4205,"date":"2012-11-23T15:45:54","date_gmt":"2012-11-23T13:45:54","guid":{"rendered":"http:\/\/vaxxi.net\/log\/?p=4205"},"modified":"2012-11-23T15:47:14","modified_gmt":"2012-11-23T13:47:14","slug":"msi-z77a-gd65-lm-sensors-conf","status":"publish","type":"post","link":"https:\/\/vaxxi.net\/log\/msi-z77a-gd65-lm-sensors-conf\/","title":{"rendered":"msi z77a-gd65 lm-sensors conf"},"content":{"rendered":"<p>Well, a new motherboard: the <a href=\"http:\/\/www.msi.com\/product\/mb\/Z77A-GD65.html\">MSI Z77A-GD65<\/a> (internal code name MS-7751 v2.1). If you&#8217;re interested why I chose it, ask. If not, let&#8217;s get on with a favourite pet peeve of mine: monitoring with lm-sensors.<\/p>\n<p><!--more--><\/p>\n<p>One of the reasons I chose the <a href=\"http:\/\/www.msi.com\/product\/mb\/Z77A-GD65.html\">MSI Z77A-GD65<\/a> was the fact it has 5 fan headers: 1 for the CPU fan and 4 for case fans. Digging into docs, turns out 2 fan headers can be controlled through PWM (headers have 2 pins for power, 1 pin for reading the fan speed and 1 pin for setting the fan speed) while the other two fan headers are 3 pin (no fan speed setting, just monitoring). <em>Oh well<\/em> I said, good enough. Unfortunately, it seems MSI were lying a bit: just the 2 PWM fan headers have the speed monitoring pin connected, while the other two are just power supply headers and provide no fan speed monitoring (even if they have 3 pins). <\/p>\n<p>The <a href=\"http:\/\/www.msi.com\/product\/mb\/Z77A-GD65.html\">MSI Z77A-GD65<\/a> uses a <a href=\"http:\/\/www.fintek.com.tw\/files\/productfiles\/F71889A_ab.pdf\">F71889A IO chip from Fintek<\/a>. It seems pretty capable, but it&#8217;s not fully used inside the Z77A-GD65. Support in lm-sensors for the F71889A was added since ~June 2011 and running the classical sensors-detect does a good job in finding and configuring the chip. Reading the <a href=\"http:\/\/www.fintek.com.tw\/files\/productfiles\/F71889A_V0.21P.pdf\">F71889A<\/a> data sheet, we can see why only 3 fans are monitored and controlled by the board: it&#8217;s a limitation of the monitoring chip. Oh well.<\/p>\n<p>Here&#8217;s the relevant section from \/etc\/sensors3.conf:<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\r\nchip &quot;f71808e-*&quot; &quot;f71808a-*&quot; &quot;f71862fg-*&quot; &quot;f71869-*&quot; &quot;f71869a-*&quot; &quot;f71882fg-*&quot; \\\r\n     &quot;f71889fg-*&quot; &quot;f71889ed-*&quot; &quot;f71889a-*&quot;\r\n\r\n    label in0 &quot;+3.3V&quot;\r\n    label in7 &quot;3VSB&quot;\r\n    label in8 &quot;Vbat&quot;\r\n\r\n#    compute in0  @*2, @\/2\r\n#    compute in7  @*2, @\/2\r\n#    compute in8  @*2, @\/2\r\n\r\n    label temp1 &quot;Temp1&quot;\r\n    label temp3 &quot;Temp3&quot;\r\n    ignore temp2\r\n    label fan1 &quot;CPU FAN&quot;\r\n    label fan2 &quot;SYSFAN1&quot;\r\n    label fan3 &quot;SYSFAN2&quot;\r\n<\/pre>\n<p>What&#8217;s changed beside the stock configuration ? the compute modifications don&#8217;t seem to be required, so they&#8217;re commented out. The two temperature inputs are properly labeled (Temp1 and Temp3) while Temp2 is not connected &#8211; so it&#8217;s set to be ignored. Add the 3 fan labels and that&#8217;s pretty much it.<\/p>\n<p>Output from sensors shows the ACPI thermal zone temperatures, the CPU core temperatures and the inputs from the F71889A chip:<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\r\nacpitz-virtual-0\r\nAdapter: Virtual device\r\ntemp1:        +27.8 C  (crit = +106.0 C)\r\ntemp2:        +29.8 C  (crit = +106.0 C)\r\n\r\ncoretemp-isa-0000\r\nAdapter: ISA adapter\r\nPhysical id 0:  +34.0 C  (high = +85.0 C, crit = +105.0 C)\r\nCore 0:         +34.0 C  (high = +85.0 C, crit = +105.0 C)\r\nCore 1:         +28.0 C  (high = +85.0 C, crit = +105.0 C)\r\nCore 2:         +23.0 C  (high = +85.0 C, crit = +105.0 C)\r\nCore 3:         +33.0 C  (high = +85.0 C, crit = +105.0 C)\r\n\r\nf71889a-isa-0290\r\nAdapter: ISA adapter\r\n+3.3V:        +3.34 V  \r\nin1:          +0.85 V  (max =  +2.04 V)\r\nin2:          +0.01 V  \r\nin3:          +0.94 V  \r\nin4:          +1.10 V  \r\nin5:          +0.74 V  \r\nin6:          +1.05 V  \r\n3VSB:         +3.34 V  \r\nVbat:         +3.38 V  \r\nCPU FAN:      572 RPM\r\nSYSFAN1:     1347 RPM\r\nSYSFAN2:     1338 RPM\r\nTemp1:        +32.0 C  (high = +255.0 C, hyst = +251.0 C)  ALARM (CRIT)\r\n                       (crit = +255.0 C, hyst = +251.0 C)  sensor = transistor\r\nTemp3:        +28.0 C  (high = +255.0 C, hyst = +253.0 C)  ALARM (CRIT)\r\n                       (crit = +255.0 C, hyst = +253.0 C)  sensor = transistor    \r\n<\/pre>\n<p>Unfortunately, the two temperature limits are not software configured through lm-sensors, but directly reported from the F71889A chip (it permanently raises the alarm flag which means it&#8217;s not properly connected\/configured). That&#8217;s it. If you manage to improve it, do drop a comment below.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Well, a new motherboard: the MSI Z77A-GD65 (internal code name MS-7751 v2.1). If you&#8217;re interested why I chose it, ask. If not, let&#8217;s get on with a favourite pet peeve of mine: monitoring with lm-sensors.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[181,170],"class_list":["post-4205","post","type-post","status-publish","format-standard","hentry","category-gadgets","tag-gadgets","tag-linux"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>msi z77a-gd65 lm-sensors conf<\/title>\n<meta name=\"description\" content=\"lm-sensors configuration for MSI Z77A-GD65 motherboard\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vaxxi.net\/log\/msi-z77a-gd65-lm-sensors-conf\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta 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