Q6600 B0 Temps Question

Darkwave

Darkwave

Darkwave

Soldato
Joined
25 Oct 2005
Posts
13,779
Hey guys,

I just bought a Q6600 G0 and put it in, but I'm a bit worried because Core #0 and Core #2 always show as 4-5ºC higher than Core #1 and Core #3 when read via Coretemp. Not only that but the temps seem incredibly high for stock clocks with a Noctua U12F on there.

Running at stock with Prime95 stressing all four cores right now I'm getting this in Coretemp: -

Tjunction: 100ºC
Core #0: 58ºC
Core #1: 54ºC
Core #2: 58ºC
Core #3: 54ºC

Now bear in mind this is stock clocks. Is it running too hot and should the cores be reading the same?

Beginning to suspect I have either a concave G0 or my AS5 application went a bit west.

Sincerely,
Ulfhedjinn.

Edit: I just realised I wrote B0 in the title, if any mods spot this and are a little OCD could you fix it for me? :p
 
Last edited:
Intel quads are made from a pair of Core2's, as I'm sure you know, so there are 2 voltage planes in the CPU. Just like Core2's vary heat wise for the same voltage, so do the pairs of cores in the quad.

5c is well within tolerance I understand.

Having said that, I don't know whether 1 and 3 constitute a 'pair', so that theory might be out of the water!

It does seem a bit toasty though for a G0...

I'd try a re-seat first of all.
 
Aye I had a feeling it might just be one of the pair running hotter, but I took a long look through the Official Q6600 Overclocking Thread and it's as if I'm the only person getting any variation at all.

I'll definitely have a go at reseating it, my main suspicion is that I could've simply sat the heatsink down too hard on one side when putting it on and smudged all the AS5 away to the other side or something.
 
Mine before lapping-

b4lappingload1nk6.jpg


And after-

afterlappingload1qx8.jpg


So it's pretty normal.
 
Holy crap, your second core really took to the lapping from the looks of things. :D Planning to do it to mine in time.

Were those readings taken at stock?
 
Nah 3.33ghz @1.45v.

I'm currently Priming at 3.5ghz @1.47v now that Core 1 isn't melting.
 
This is weird. It was running hot at stock but since then I have whacked the vcore up to 1.4v to experiment with some overclocking, and temps have only gone up by 2-4ºC at 2.7GHz while 4x priming. I'll keep this post up to date as I keep pushing the FSB, but it is looking up to now.

Edit: Just increased to 2.8GHz and no temperature increase.

Edit: I tried 2.9GHz and it crashed after a little priming, increased the vcore to 1.425v and it wouldn't boot into Windows. No joy at 2.85GHz either. I've got it back at 2.8GHz at 1.40v and it seems fine again, so I think I'm going to have to reseat the heatsink and try playing with chipset voltages now. :(
 
Last edited:
That does seem hot for G0,mines running at 3.2Ghz 1.30v set in bios (1.288v in cpuz) and all 4 cores in coretemp are sitting at 35c idle & 58c under load (8 hours of prime).Whats your VID in coretemp as mine seems quite low at 1.2375v?
 
Last edited:
Ulfhedjinn said:
This is weird. It was running hot at stock but since then I have whacked the vcore up to 1.4v to experiment with some overclocking, and temps have only gone up by 2-4ºC at 2.7GHz while 4x priming. I'll keep this post up to date as I keep pushing the FSB, but it is looking up to now.

Edit: Just increased to 2.8GHz and no temperature increase.

Edit: I tried 2.9GHz and it crashed after a little priming, increased the vcore to 1.425v and it wouldn't boot into Windows. No joy at 2.85GHz either. I've got it back at 2.8GHz at 1.40v and it seems fine again, so I think I'm going to have to reseat the heatsink and try playing with chipset voltages now. :(
Click to expand...

Be careful with the stressing of your CPU until you're positive it's making excellent contact with the heatsink. Also I suggest you don't increase vcore at all just yet as from my experience bad contact means high temps AND the necessity to increase vcore to get a stable overclock whereas with good contact it runs overclocked with less volts and of course runs cooler!
 
Quads really do need good heatsink contact across the spreader unlike duals. Initially I had a 8-c difference between 1,2 - 3,4 reseated and there is now 2'c difference.

Recommend you reapply the AS
 
I've reseated the Noctua and temps have dropped a bit but there's still some difference between the readings on pairs of cores, in fact I think the difference has increased. I'll try another reseating tomorrow.

Amidar said:
Whats your VID in coretemp as mine seems quite low at 1.2375v?
Click to expand...
1.3125v VID for mine. :(
 
I'm beginning to think I've somehow gotten the worst G0 ever, but I've still not tried reseating the HSF yet.

I was a little too busy with other things yesterday, so I'll get around to doing it today.
 
You must log in or register to reply here.
Back
Top Bottom