Check your bios settings and also the fan speed limit upon alarm
whats the spec of your desktop? normaly if cold boot some mobos will power all the fans at full speed followed by slowing down to whatever the bios set it to be. If your bios has an alarm / low fan speed warning the fan might have triggered that alarm thus the error message.
are you also connecting the HSF to the CPU FAN header of the mobo ? why not try with another Chassis fan header and see if the problem persisists?
I'm leaning towards your bios setting for now till you confirm back.
cheers.,
Try with another chassis fan header not test with new fan
Sorry what do mean chassis fan header? You mean the metal thing that the fan is blowing? Like the heat sink?
In the case of bio setting which I didn't touch at, maybe will try to reset to default setting.
Based on the video I posted do you reckon that the motherboard is faulty ?
Can't sleep so I check it out. Tried on chassis fan header and the fan works spinning at 3000 rpm instead of 300...
So anyway to rectify this?