Irregularities with CoreTemp

vwgolfman · 5 Jan 2008 at 20:12

I have a Quad Core 6600 CPU.

I have just booted for the first time today and CoreTemp is reading 37,37,28,26 for each core respectively (high, high, low, low).

At other times it has read figures such as 36, 26, 27, 35 (high, low, low, high).

Has anybody else noticed this irregularity with CoreTemp?

I have double-checked the thermal compound bond between my CPU and its heatsink which seems to be sound.

Ants77 · 5 Jan 2008 at 20:53

I had the same prob (finally sorted)with my q6600 and thermalright ultra, sounds like the heatsink isnt fitted correctly or maybe it needs lapping? also if u use artic silver it needs time to settle in, but those temps do seem too irregular for a simple thermal grese prob

hope this helps

iKettles · 5 Jan 2008 at 21:01

Sounds like an unflat IHS to me.

Pneumonic · 5 Jan 2008 at 21:14

could be an uneven IHS or just different cores being used at different times

RaiderX · 5 Jan 2008 at 21:26

the 1st 2 cores are usually hotter than the 2nd 2 due to it being 2 dual core chips on 1 board instead of it being 1 chip containing all 4 cores

vwgolfman · 5 Jan 2008 at 21:36

Please can you guys tell me at which temp I should start to ease off the overclocking for the G0 Quad 6600 ?

I am currently clocked to 3GHz with 60, 60, 51, 51 under load (Small FFTs Prime95).
VCore 1.325V.

Air cooled.

Pneumonic · 5 Jan 2008 at 21:38

well 75c is my max for a small FFTs prime run.. some people are not so comfortable over 65/70c but prime runs are going to stress your CPU way more than anything you will do in normal 24/7 running

vwgolfman · 5 Jan 2008 at 22:00

I have just rebooted and now when I run CoreTemp it is reading 60, 51, 60, 51 (High, Low, High, Low) under load.

This seems very odd (see above posts regarding the High Low bit).
This time (High, Low, High, Low) each pair of temps seems to be EXACTLY related. i.e. temp 1 and 3 toggle between 60 and 61 at the same time. Temp 2 and 4 is toggling between 51 and 52 together also.

Prime95 is definitely running 4 threads.

Does anybody know why CoreTemp is acting like this?