- Motherboard: ASRock EP2C602-4L/D16
- RAM: Kingston KVR16R11D4K4/64
- CPUs: Intel Xeon E5-2670 x2
- CPU coolers: Noctua NH-U12DXi4 x2
- Case fans: Noctua NF-F12 x6
I have had the system for about a month. I am running Proxmox on it and it is on 24/7. The CPU fans are set to adjust automatically in the BIOS based on temperature, I think it is called 'smart control'. The case fans are set to a specific level in the BIOS so they should always be the same speed.
Randomly all of the fans, CPU and case, start spinning at full speed. The only way to slow them down is to restart the system. It has happened 5-10 times in the month I have had the system. I have software monitoring the system every 60 seconds. Sometimes it records a 'CPU_BSP1 Temp' of ~95C around the time the fans speed up. This is only recorded a single time, so the minute before and after it is at the normal temperature of ~38C. This high temperature isn't always recorded when the fans speed up and sometimes the high temperature is recorded but the fans don't speed up so it may or may not be related.
I am thinking the CPU_BSP1 temperature sensor is bad but it is weird that it fails only briefly. Any ideas what could be wrong? Thanks.