x3320 and nortbridge temps.

Fattysharp

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Nov 23, 2005
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I built my first quad rig 2 nights ago and been reading up on what to expect temperature wise but am a still a little confused as to what is acceptable for the individual cores and northbridge.

My rig is:
DFI DK P35-T2RS
x3320 @ 7x425fsb Coolermaster Hyper tx x2
4gig gskill 8500
2x500g Seagate Barracuda SATA-300 raid0
Windows Vista 64 Prem.

Idle cpu temps are around 27-29 and load can hit low to mid 40s with the dfi Smartgaurdian, and that corresponds with the coretemp, and everest's.

the individual cores are showing idle at 55-58 degrees and load is low 70s. That concerns me. I have read this fairly normal, but everything I read was speculation.

The dfi mobo also has a chipset sensor for the NB and mine idles at 47-48, and loads can hit 55. The HS is quite toasty on load to touch. I have read that other people with the same board are showing their NB to hit 60+ degrees and are unconcerned, but again, no hard data on what it should be at, just speculation.

Should I be concerned with the individual core temps of the cpu ?

Can anyone tell me what sort of temps are reasonable for the NB ona p35 board?

My room temp has probably been in the mid 80s the past few days I was monitoring and stress testing.

I am very impressed with the preformance of this machine. I am overclocking about 450mhz right now and will be playing with the wonderfully tweakable bios shortly to see what I can come up with. I do not plan to overclock past what I can get with stock voltage though.

Thanks.
 

Fattysharp

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Nov 23, 2005
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Thanks. i will not worry about the NB temp then, I see you have the same board (similar model anyways).

I am using a 182 revised case. extra fan mounted on the front to pull air in, and the 2 exhaust fans on the back set to medium. side panel is off right now since I am still testing.

Anyone else on the individual core temps ? Should i be concered with the cores hitting low 70s on load, even though the "cpu" temp only loads to low 40s ?
 

Foxery

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Jan 24, 2008
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Ignore the "CPU" temp - "core" temperatures are the important reading. Yours seem slightly high for such a good cooler - it appears to be nearly identical to the Tuniq Tower and Xigmatek S1283 that many of us use. Make sure you have high quality thermal paste and that it's applied effectively.

My Abit P35-based board's northbridge is also utterly scalding to the touch. I'm not thrilled, but it seems to be the norm.
 

Fattysharp

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Nov 23, 2005
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Originally posted by: Foxery
Ignore the "CPU" temp - "core" temperatures are the important reading. Yours seem slightly high for such a good cooler - it appears to be nearly identical to the Tuniq Tower and Xigmatek S1283 that many of us use. Make sure you have high quality thermal paste and that it's applied effectively.

My Abit P35-based board's northbridge is also utterly scalding to the touch. I'm not thrilled, but it seems to be the norm.

That is what i was worried about. I am using artic silver mx-2, and applied in a line across the cpu. I will remove the cooler, clean it and reseat it and see how that goes.

The cooler is a nice, the machining of the copper base is not that good though. I even saw a few cross grain scratches when i was installing it.

Anyone able to tell me what are decent temps to aim for on the cores ?
 

Foxery

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Jan 24, 2008
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My cooler is the same general design, and has huge gaps between the round copper heatpipes and the square other-metal base. Consciously filling these in with extra thermal paste seemed to help - I ended up using far more paste than you do with smooth bases.

Which software are you using? For Prime95 + RealTemp, 70C is perfectly safe, especially since few normal uses raise the temperature quite as high as Prime95. I fare a tiny bit better... low-mid 60s at 3.0GHz, 70+ once I get up into the 3.2GHz range. You're in the right ballpark, so don't worry about every last degree :)
 

Fattysharp

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Nov 23, 2005
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Originally posted by: Foxery
My cooler is the same general design, and has huge gaps between the round copper heatpipes and the square other-metal base. Consciously filling these in with extra thermal paste seemed to help - I ended up using far more paste than you do with smooth bases.

Which software are you using? For Prime95 + RealTemp, 70C is perfectly safe, especially since few normal uses raise the temperature quite as high as Prime95. I fare a tiny bit better... low-mid 60s at 3.0GHz, 70+ once I get up into the 3.2GHz range. You're in the right ballpark, so don't worry about every last degree :)

I am not overly worried about it, just seemed high for a 45nm quad. i was expecting less heat on the cores. I am not getting any errors when run prime95 64 bit version and I only hit low 70s when I stress it at around 3ghz. As long as they are not dangerous temps, then I am not worried about it.

I was using prime95 64 bit for stressing, and monitoring with everest ultimate. i will give realtemp a shot, since I have been reading good things about it.

Thanks for the input Foxery.
 

graysky

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Mar 8, 2007
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55 C for a NB @ 425 MHz is pretty normal. What are your voltages? I'm guess your NB is North of 1.4?
 

Fattysharp

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Nov 23, 2005
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Originally posted by: graysky
55 C for a NB @ 425 MHz is pretty normal. What are your voltages? I'm guess your NB is North of 1.4?

I have not touched voltages at all. i would assume it is still at stock, unless my mobo is auto adjusting it which i would find odd. I can check when i get home though.

55C is only at load after 20 minutes of prime95. idle it sits around 48C.


**edited for clarification.
 

Fattysharp

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Nov 23, 2005
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Tested with real temp and it is showing my load around 60C, and my idle around 45. this is -10 then everest and coretemp. distance to tjmax on load is 35C so i am safe it seems.

That is more in line with what i was expecting to see, so i suppose using the correct programs help :p

Graysky, my NB Voltage is 1.32
 

graysky

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Mar 8, 2007
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1.32 V.... 55 is a touch on the high side but reasonable... would have expected closer to 1.4'ish for your o/c. How fast is the RAM clocked?
 

Fattysharp

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Nov 23, 2005
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Memory is running at 1033. 333/800. Unsure if i should change this or not. I was under the impression that 1333 rated cpus should be using 333/800. I could be way off though.

2x2048 gskill 8500. Seems to be quite nice memory.

I rasied the fsb to 430 as well. Just to break the 3ghz mark. Everything still at stock voltages. Rock solid so far.
 

Foxery

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Jan 24, 2008
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Any particular reason why you're running the chip on a 7.0x multiplier instead of its default 7.5? This would take some stress off of your RAM/mobo.
 

Fattysharp

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Nov 23, 2005
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Originally posted by: Foxery
Any particular reason why you're running the chip on a 7.0x multiplier instead of its default 7.5? This would take some stress off of your RAM/mobo.

I will check the bios, but I am fairly sure it only offered a multiplyer up to 7. At work right, I will confirm when i get home.

Edit - There was a second option in the bios that i had to turn on in order to get the multiply 7.5. cpu n/2 set to enabled and it let me use the 7.5 default was off, and so it was running at 7.