I've rebooted a couple of times and I have seen the American Megatrends screen appear twice, stating 'CPU fan error!'. I tried wiggling the PWM fan header a bit, but it made no difference. Yet I can see and hear my Heatsink fan (Which is an Arctic Cooler Freezer Pro 7 REV2 if that makes a difference) spin as usual. For Example I as soon as I saw the AI Suite warning I would check HW monitor, and it seems that was reading 0 RPM too! Before my eyes I'd see 750 RPM turn to 0 RPM. Everytime AI Suite warns me about the CPU fan being 0 RPM, the RPMs on HW monitor also change. I looked up solutions to this on the internet, many saying AI Suite is inaccurate and worth ignoring.īUT, I also read CPUID's HW Monitor is very reliable, so I pulled both AI Suite and HW Monitor up. If you experience that the problem of Fan speed cannot be adjusted (Fan setting is abnormal) or keyboard backlit (lighting effects) setting is abnormal, the root cause may be coming from Armoury Crate and relevant drivers didn’t be installed properly.
The installation went well in my opinion, but within the first couple of hours of installation AI Suite II started Giving me a warning, CPU fan 0 RPM. Also make sure that the board is getting real RPM values from fans (splitters and hubs can break this) and the tuning settings are per header, so all used headers need to get good rpm readings for tuning to work.I recently installed a new Heatsink fan into my ASUS P8Z77 V-LX (i5 -3570k OC'd to 4.3Ghz). I also vaguely remember that it resets if it detects fan configuration changes (like plugging to different headers). Also the "pump" fan header has different limits for some reason so try not to use it for fans if possible. Since this is for someone else, who will probably not update their bios on their own, it should be safe, as the settings are remembered (unless you reset the bios or update it). I usually run it 2-3 times until I get the numbers I know are possible. After each "tuning" check the what is the new min duty cycle it will allow you to set. In your case I would try running it again, maybe even have the case opened up and "help" the fans to spin during the test cycle - either by blowing air in to them or by hand. It does this by running the fans slower and slower and checking reported RPM. The tuning part tries to figure out the minimum startup voltage for your fans and the bios will not allow you to set speeds below that (if you never ran the fan tuning it uses the default limit of 60% for DC and 20% for PWM). You need to run the fan tuning to set DC fans below 60% and PWM fans below 20%.
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