PC cooling performance fluctuates unpredictably. Cooling indicators also behave inconsistently.

F5F Stay Refreshed Hardware Desktop PC cooling performance fluctuates unpredictably. Cooling indicators also behave inconsistently.

PC cooling performance fluctuates unpredictably. Cooling indicators also behave inconsistently.

PC cooling performance fluctuates unpredictably. Cooling indicators also behave inconsistently.

T

TheEvilNinja
Member

109

03-13-2016, 01:02 PM

#1

Video of the event: My 4-year-old computer stopped working suddenly while I was using it. After turning it back on, I opened BIOS for some checks. The CPU temperature in BIOS is 126°C, whereas before shutdown it was only 30°C. There’s no reading from the motherboard temp sensor (0°C). The fan speed reads 0 RPM even though it’s spinning irregularly. In BIOS voltage readings, the system gets 5V at 10.2V and 12V at 0V—can boot into Windows sometimes, but often it crashes or shuts down. My setup includes an i7 6700k with 4.4GHz, 16GB RAM, MSI Z170M motherboard, PWM CPU fans and case fans via dedicated headers. The PSU output is stable at 12V and can start another PC without issues. But using a different PSU makes it hard to boot, only working if I replace the CMOS battery and reinsert it. This inconsistency worries me because high temperatures from erratic fan behavior could affect performance.

T

TheEvilNinja

03-13-2016, 01:02 PM #1

Video of the event: My 4-year-old computer stopped working suddenly while I was using it. After turning it back on, I opened BIOS for some checks. The CPU temperature in BIOS is 126°C, whereas before shutdown it was only 30°C. There’s no reading from the motherboard temp sensor (0°C). The fan speed reads 0 RPM even though it’s spinning irregularly. In BIOS voltage readings, the system gets 5V at 10.2V and 12V at 0V—can boot into Windows sometimes, but often it crashes or shuts down. My setup includes an i7 6700k with 4.4GHz, 16GB RAM, MSI Z170M motherboard, PWM CPU fans and case fans via dedicated headers. The PSU output is stable at 12V and can start another PC without issues. But using a different PSU makes it hard to boot, only working if I replace the CMOS battery and reinsert it. This inconsistency worries me because high temperatures from erratic fan behavior could affect performance.