14 months ago
I've just finished putting together this build: https://pcpartpicker.com/list/DZrKgw
It boots to BIOS just fine, but it immediately shows a CPU overheat warning. The BIOS shows the CPU temperature at a constant 126c. The BIOS doesn't seem to recognise the cooler, and shows a fan speed of 0.
I'm sure I mounted the cooler properly, and I've definitely plugged in the SATA power, USB and fan cables. The lights on the pump unit come on, and the fans spin. I'm using the thermal paste that came pre-applied to the cooler.
Does anyone have an idea what might be going on? Even if the the cooler isn't working, or if there's an issue with the thermal paste, I wouldn't think the CPU should leap straight to 126C, and if it did, surely the CPU would shut down, right? Could the motherboard be misreading the temperature somehow?
EDIT: Coretemp gives me temperatures around 25c idle, so I'm guessing the motherboard is reading things wrong