Concerned about cpu

888 Views 13 Replies 4 Participants Last post by linderman, Oct 14, 2005

Andrew0987

Discussion Starter · Oct 10, 2005 (Edited)

Ok, this is my last cpu/temp question for now. My prescott 630 cpu 800mhz fsb 2mb of l2 cache 3.0ghz is having horrible heat problems. This temp inside my case is around 20*C and there is plenty of airflow. The intel stock heatsink is operating at 2500rpm and everything else appears to be fine. I have integrated video. The cpu hit a blazing hot 85*C while I was playing the original unreal tournament. It hasn't locked up or shut down yet so I suppose that is a good sign. Why is it getting so hot?

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linderman

· #2 · Oct 10, 2005 (Edited)

Welcome to TSF:

if the temps inside the case are 20C (that sounds too cool to be accurate) then most LIKELY you have a poor performing PSU or heatsink and fan / are you confident your cpu thermal grease was properly applied (even coat) a spot about the size of a piece of rice applied to the cpu surface then installed the heatsink ???????????

what make and model PSU ??????

download a monitoring prog like sandra lite (free)
and post your system temps, cpu temps, system voltages in here for evaluation
http://www.download.com/3000-2086-10018691.html

run your game to "work" the system for about 20 minutes / then record and post your temps and voltages in here

80C is very hot !! its the threshold of danger!

regards

joe

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Andrew0987

Discussion Starter · #3 · Oct 10, 2005

My psu: http://www.newegg.com/Product/Product.asp?Item=N82E16817103512
I am pretty sure the case temps are accuate, my room is 60*F.
Temp while playing ut: 86*C
Temp while playing diablo 2: 78*C
Idles at: 45*C
I recorded those temps yesterday (case temps were still about 20*C then)
I'd rather not run UT for twenty minutes straight as I'd probably fry it.

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linderman

· #4 · Oct 10, 2005

Andrew:

record your voltage readings without running the game and post them

I doubt you have a bad PSU / that's a good high quality PSU / so we should move on to the thermal grease investagation

regards

joe

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Andrew0987

Discussion Starter · #5 · Oct 10, 2005

linderman said:
Andrew:

record your voltage readings without running the game and post them

I doubt you have a bad PSU / that's a good high quality PSU / so we should move on to the thermal grease investagation

regards

joe

V core: 1.47
+3.3: 3.41
+5: 5.22
+12: 12.36

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please

· #6 · Oct 10, 2005

@ Andrew0987
That Enermax PSU is a nice one. You should be fine with that. Your board temps seem overly low and your CPU temps seem overly high. Your CPU is definitely one hot CPU and operates in a high temp zone, but I would worry about the temps you are seeing. I would suspect a poor HSF/CPU connection. You can try redoing the seating of the HSF to the CPU. You may wish to try some Arctic Silver 5 thermal compound, as it will save a few degrees, but a good contact between HSF and CPU is of highest priority. Look here for installation instructions and tips. The stock P4 cooler for your CPU is a bit weak, so you might also want to consider an aftermarket HSF like a Zalman 7000(on sale!) /7700 or Scythe Ninja, Arctic Freezer 4, Theramalright XP90 or XP120, or an older SP94, SP97, to name some of the best ones. You'll get lower temps AND quieter operation.

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Andrew0987

Discussion Starter · #7 · Oct 10, 2005

please said:
@ Andrew0987
That Enermax PSU is a nice one. You should be fine with that. Your board temps seem overly low and your CPU temps seem overly high. Your CPU is definitely one hot CPU and operates in a high temp zone, but I would worry about the temps you are seeing. I would suspect a poor HSF/CPU connection. You can try redoing the seating of the HSF to the CPU. You may wish to try some Arctic Silver 5 thermal compound, as it will save a few degrees, but a good contact between HSF and CPU is of highest priority. Look here for installation instructions and tips. The stock P4 cooler for your CPU is a bit weak, so you might also want to consider an aftermarket HSF like a Zalman 7000(on sale!) /7700 or Scythe Ninja, Arctic Freezer 4, Theramalright XP90 or XP120, or an older SP94, SP97, to name some of the best ones. You'll get lower temps AND quieter operation.

Well, here is the problem. I have no more than 70mm of room to squeeze a heat sink and a fan thanks to my weirdly shaped matx case. Most of those thermal solutions are out of the qustion. And last time I checked the zalman 7000 wasn't comatible with socket lga775. When I was installing the stock hsf I had to remove it and install it again and When I did that the thermal pad was broken up. I wouldn't think that to be a problem since the thermal pads melt when hot. I am thinking about getting this hsf: http://www.newegg.com/Product/Product.asp?Item=N82E16811999999

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Tumbleweed36

· #8 · Oct 10, 2005 (Edited)

HI,

You have pinpointed a real problem. You can not use the same thermal pad once you take the unit apart. You must either get a new one to put in or use Artic Silver or a comparable thermal paste. The Artic Silver solution suggested to you is your best solution and if you take it off when you have put that on, you must also clean it and start again. You have a great power supply, so I would bet that the problem could only be the thermal contact between CPU and heatsink.

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Andrew0987

Discussion Starter · #9 · Oct 11, 2005

Tumbleweed36 said:
HI,

You have pinpointed a real problem. You can not use the same thermal pad once you take the unit apart. You must either get a new one to put in or use Artic Silver or a comparable thermal paste. The Artic Silver solution suggested to you is your best solution and if you take it off when you have put that on, you must also clean it and start again. You have a great power supply, so I would bet that the problem could only be the thermal contact between CPU and heatsink.

Ah, excellent. Thanks for the help everyone. I will probably get an aftermarket heatsink as well as some new thermal paste and some thermal paste remover.

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Tumbleweed36

· #10 · Oct 11, 2005

Andrew0987 said:
Ah, excellent. Thanks for the help everyone. I will probably get an aftermarket heatsink as well as some new thermal paste and some thermal paste remover.

Hi,

Two quick things.

First, be sure to let us know how this story ends when you get those things done. That way we can help others with the same problem if you have found the solution.

Second, I would be very careful about running that CPU with possible holes in the thermal pad or you might be buying one of those also. Those temps are just way too high and you do run the risk of frying something, especially with the possible openings in the re-used pad. It is just not worth the risk for you.

Oh, a third thing.....be sure not to be a stranger, hang around and lend a hand if you see something that you are able to help with. By hanging around, you do learn a lot on this forum.

Have a great evening.

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Andrew0987

Discussion Starter · #11 · Oct 11, 2005

Tumbleweed36 said:
Hi,

Two quick things.

First, be sure to let us know how this story ends when you get those things done. That way we can help others with the same problem if you have found the solution.

Second, I would be very careful about running that CPU with possible holes in the thermal pad or you might be buying one of those also. Those temps are just way too high and you do run the risk of frying something, especially with the possible openings in the re-used pad. It is just not worth the risk for you.

Oh, a third thing.....be sure not to be a stranger, hang around and lend a hand if you see something that you are able to help with. By hanging around, you do learn a lot on this forum.

Have a great evening.

Thanks for the help so far. And yeah, I will stick around, I know a fair amount about 'puters. One last thing, do you think my cpu is damaged? My pc hasn't locked up yet or shut down but cpu temps have gotten pretty close to 90*C, the pc is working fine but I'm just curious.

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Tumbleweed36

· #12 · Oct 11, 2005 (Edited)

Hi,

I seriously doubt if it harmed it in any way if it still works O.K However, just don't push your luck on that one or fix it before you burn it up. As I said, just not worth the risk. If I were you, I would pick up a tube of Artic Silver and see what happens when you put that in there. Then, if you still are getting high temps, then spill for the better heatsink and fan. Oh, when you put Artic Silver in, please follow their instructions to the T. More IS NOT better when you put in thermal paste. Here is a guide:

http://www.arcticsilver.com/arctic_silver_instructions.htm

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Andrew0987

Discussion Starter · #13 · Oct 14, 2005

Hey, I just received and installed the thermal paste. I played ut and diablo 2 for a little while. I haven't seen the temps above 50*C

:snowman:

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linderman

· #14 · Oct 14, 2005

Andrew /

happy to hear your good news follow-up !!!!

congrats
job / well done

cheers

joe

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