Temperature of MB exceeds CPU (CPU +64°C load, MB +73°C load)
Temperature of MB exceeds CPU (CPU +64°C load, MB +73°C load)
Build details: Motherboard MSI B350M Bazooka mATX
Processor: Ryzen 5 1600 3.8Ghz @ 1.3V
CPU cooler: Cryorig H7
RAM: G.Skill RipJaws V DDR4-3200 DIMM CL16 Dual Kit 2x8GB (operating at 3066mhz)
GPU: Sapphire Radeon RX580 Pulse 8GB
Power supply: EVGA Supernova 650W GQ 80+ Gold
Case: Fractal Design Define C Mini Window
Idle temps: CPU +30°C, MB +39°C
League of legends, 30min play temps: CPU +40°C, MB +50°C
Aida64 1min stress test temps: CPU +61°C, MB +58°C
Aida 64 15min stress test temps: CPU +64°C, MB +73°C
Idle temps: [link]
League of Legends, 30min temps: [link]
Aida64, 1 minute temps: [link]
Aida64, 15 minutes temps: [link]
PC interior: [link]
Hi everyone,
Should I be concerned because the motherboard temperature is consistently higher than the CPU? Please review the screenshots above. After some research online, it appears the numbers refer to VRM temperatures. My MATX case has a large CPU cooler (see photo, PC interior – could it obstruct the cold airflow to the sensor?). It’s possible the CPU fan might be blowing hot air directly onto the motherboard sensor. However, I still can’t explain why Aida64 reaches 64°C after 15 minutes of stress testing.
Before installing additional fans, my MB temperature was around 77-80°C after a 30-minute Aida64 stress test. So little improvement. I used a 3pin -> 4x 3pin Molex cable for extra fans, meaning the fans are running at half their voltage (correct?).
Could you please let me know if there’s any issue with the MB temperature sensor or other possible reasons for these high temperatures? Also, is there a chance this could affect the motherboard lifespan?
Thanks, everyone.
When discussing VRM/MOSFETs, temperatures can exceed these limits. It's important to watch for CPU thermal throttling. You should check if there are heatsinks attached to your VRM; otherwise, ensure proper case ventilation is in place.