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GageWilder's avatar
GageWilder
Iron Contributor
Mar 30, 2026

Windows10 High CPU Temp & Max Fan Speed After BIOS Access

After entering BIOS on my B760 motherboard, my CPU temp spikes to 80-90°C and fans run at full speed. It was normal before what’s causing this?

3 Replies

  • radmiru's avatar
    radmiru
    Steel Contributor

    It is normal to run at max speed before the bios loads its settings in. If you already Set a Fan curve, you might have connected them wrong. I think if your Fans are wired over the case and not the mobo, you cant change the speed.

  • Jakarimom's avatar
    Jakarimom
    Brass Contributor

    Sometimes, entering BIOS resets or changes certain settings like CPU voltage, fan profiles, or power management options, which can cause increased temperatures.