My CPU is having a temperature below ambient, and when I "unlock" it, it the temps raise up to 40c, why?

[javierbyte]

The room temperature is about 25c, and the CPU temp is 20c, I know this is not possible, and I think that the sensor is damaged, but, then I "unlock" the CPU in the bios, the CPU temp raise to near 40c when I'm not doing anything.

My CPU is the Phenom II X4 840 (3.2ghz x 4), the cooler is the cooler master hyper tx3 with two fans, I used speccy and core temp to see the temperatures.

When I "unlock" the CPU, I dont gain any core, not L3, and not GHz either.

I started to think that the dagamed sensor actually start to work with the unlock, is this possible?

Sorry for my bad english.

 

[logainofhades]

The sensor or the program you are using is wrong. Also, there is nothing to unlock on a PhII 840. The 840 is just a rebadged Athlon II with a higher clock speed.

 

[javierbyte]

Is there a reason for the temp raise when I tried to unlock it?

 

[logainofhades]

Your unlock attempt probably is making something error out on the motherboard and it isn't reading properly.