2 different core temps under even full load

Computer Forum CPU, Motherboards and Memory
1

With both cores under 100% load, core 1 on my E7300 gets up to 7 degrees warmer than core 2. Under no load they are the same.

I have read that the sensors can be misleading as in they are not both seated at the hottest part of the core and micrometres can make a big difference, but surely the readings would then be consistantly different.

I’m using the stock cooler at the mo and don’t really want to do a reseating of the H/S until i have a new decent one.

Has anyone else noticed this with their multicore CPUs?

2

yep mine usually 2 to 4’C out depending on the load, could be that one core is doing more work than the other?

I wouldn’t worry much unless its causing your computer to restart.

3

this happens when the 2 cores are under full load with a small amount of kernel activity.

the thing is that the temps are the same when idle.

the reason i want to sort this out is because i’m contemplating overclocking my machine. i may have to do this to sort out my memory problems (different theread)

cheers for the response tho

4

ah overclocking, not done that for years, hehe.

what application are you using to to push the cpus to full load?

5

i’ve used prime95 for a sustained cpu workout and the usage of both cores is 100% flatline. I’ve also used DVDshrink (backup purposes onlyof course) and with 100% usage again the cores read about 7 degrees different.

I stress that the reason for my post is because the cores are only different when under load. If they were different all the time i could explain it - bad seating of the heatsink or sensor inconsistencies. If the processor is faulty i can still get it replaced but if i OC it and it dies then it may void my warranty (not sure if you can tell if a CPUs been OCed or not)

Apparently these new 45nm chips are excellent for OCing. My 2.6 rated chip should clock to 3.5-4GHz without really breaking into a sweat.

Thanks again for your interest in this thread