Is it possible to enable EC support also for the CPU fan? Its speed can be read from EC offsets 0x93 and 0x94 (register 147 and 148), and the method is the same as the one for the GPU fan. The "problem" appears when my CPU fan goes at maximum speed (that is supposed to be about 4100 rpm), HWiNFO reports 25500 rpm, that is obviously a wrong value. Regarding the CPU fan, it seems that HWiNFO does not use EC support for it, but it reports this speed reading from ACPI objects, and does not report the actual exact CPU speed, but fixed values (2200, 2300, 2400, etc). I calculate myself the speed value using this method Fan Control on Asus Prime UX31/UX31A/UX32A/UX32VD. If I set CPUFAN to 75, CPUOPT will also run at 75. Fan control on the ASUS ROG Crosshair VIII Extreme can be accessed in the BIOS or Windows software. The fans are controlled by a Nuvoton chip, which is commonly seen on motherboards. I use Notebook Fan Control to control both fans.Ībout the GPU fan speed, HWiNFO uses EC support and it works well, reporting the exact actual speed reading from EC offsets 0x95 and 0x96 (register 149 and 150). Now what does 'Shared Control' mean I could not find anything in your board's manual, but on my ASUS-board, it means that CPUFAN and CPUOPT will share one control-value, meaning that if CPUFAN is set to 100, then CPUOPT will also work at 100. Fan Control and Options Fan speed is controlled by temperature, actual minimums dependent on fan ability.
Featuringh Aura Sync support, plus ROG-designed radiator fans, the ROG series brings the performance, features and design details you expect from ROG to a vital part of your gaming system. ASRock offers a very comprehensive control to perform the built-in RGB LEDs or the connected LED strips, CPU fans, coolers, chassis and any RGB devices. I have an Asus ROG G751JY, using HWiNFO64 v5.36-2960, that shows me both CPU fan speed and GPU fan speed. ROG All-In-One Coolers is a series of high-performance CPU liquid coolers designed for compact to high-end gaming builds. I use HWiNFO since years without a problem. First of all, thank you for the excellent work Martin.
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