Question CPU temp sensor broken or what?

[bleyz01]

Hello!
My pc is pretty old, but something strange happend last time. I have Core 2 Quad Q9550 oc to 3.5ghz temperatures while 100% load were around 70-80 degrees maximum. Now my 2 cores sitting at 45 degrees at idle and other 2 at 80-90 degrees. I've change thermal paste, mount my cpu cooler once again, but same results...

 

[RememberThe5th]

Possibly, my e5800 would sometimes give fsb of 600-800 and 7Ghz.

 

[bleyz01]

Even if i clock down the cpu (back to stock) it show similar results. Around 80 degrees on idle. I think something has to happend to the sensor. If i stress the cpu by the aida 64 temperature goes up to around 96+ degrees after one and a half minute, and cpu starts to throttling, but the other two cores are around 60-70 degrees. In bios it shows around 45 degrees but i'm thinking it's becouse this 2 cores runnning fine. Aida64 + Hwinfo ss

https://imgur.com/a/xXzQv3D

View: https://imgur.com/a/xXzQv3D