Hello everyone I am currently running with a Intel D945GCCRL motherboard with a Pentium D 940. 2 GB of Ram, a video card, tV tuner card, and 500WT power supply. I have tried a stock fan with the CPU Paste already applied to it and also a higher end Masscool CPU fan. I have purchased the Artic Cool CPU paste (i believe thats what its called) and the CPU still overheats. I have mounted/remounted my board so many times I cannot count. I have tried running the board without it even being mounted, and just on the nonstatic bag. I have replaced the motherboard twice and the CPU once and still no luck. The CPU gets to about 62/63C and PC shuts down. Any ideas? I have none.

"The CPU gets to about 62/63C and PC shuts down"

62-63C may be a bit on the warm side, but it's not overheating. Is that the temp at idle or under load?

Are you applying the thermal coumpound properly? While those temps are not good they aren't hot enough to damage the processor. Why don't you set the shut off temp higher. Below is a link on proper application of Artic Silver.

http://www.arcticsilver.com/arctic_...

It shuts down just being on the BIOS screen at these temperatures. I have followed instructions from the Artic Silver website, along with tips from different people. I have applied, removed, and reapplied several times.

I am wondering if the CPU sensor is wrong then. Are the applied voltages correct for that processor?

"I have followed instructions from the Artic Silver website"

The Pentium D 940 is a dual-core CPU so that would mean you placed a very thin line of paste across the two cores. Like this:

http://www.hardwarecanucks.com/imag...

If you did it any other way, you did it wrong. Are you 100% sure you're installing the heatsink correctly?

http://www.pcstats.com/articleview....

I have applied the paste as stated on the website and I am pretty sure that the Heatsink/fan is installed properly. I guess I must be doing something wrong since this is my 3 motherboard. I just dont know what I am doing wrong since I have applied the paste in different ways, applied alot, a little, and in between, I have used 3 different fans. I just got a brand new fan with the paste already applied to it and still no luck.

"I have applied the paste in different ways, applied alot, a little, and in between"

As I stated above, if you applied the paste any other way than is shown in the picture, you did it wrong! The Arctic Silver instructions are very clear, why would you try anything other than what is shown?

http://www.arcticsilver.com/pdf/app...

Before I did not understand what I was supposed to do. Sorry for not clarifying before.

Did you remove the old thermal paste before applying the new thermal paste ? I assume that you also connected the cpu HS/F to the motherboard. Can you check what speed that fan is running at before the computer shuts down ?

Hello,

Okay, very important, when you are sure that you have done all of the above, make sure the case you
have has good air flow. pentuim d cpu's make a lot of heat. Do your research. My prescott
4 model is known to be a room heater. I went and found a high air flow case designed just for space heaters like yours. now my "presshot" idles at 38-45C.

Ok I have removed the old paste with some Rubbing alchohol which is what I read to use online. I have also ran my Pc with the case open and a fan blowing direction on the motherboard. I have Fan speed gets somewhere in the 2000's before shutting off. I can get exact number if you need them.

"Ok I have removed the old paste with some Rubbing alchohol " I know this is obvious and forgive me for asking-did you reapply new thermal paste ? Were you able to see the cpu temperature in the bios before it shut down ? As suggested earlier, you should set the shutdown temperature higher than 62C. or 63C. to give the thermal paste a chance to do its' job. However, it really shouldn't be getting that hot when you first boot up, assuming that the sensor is working correctly.

Yes I did reapply the thermal paste. I will try changing the temperature before shut down and let everyone know if I get any luck.

Processor Fan Speed: 1080
CPU Temp 54C
Internal Temp 28C
Remote Temp 28C
V12.0 --11.29V
V5.0 -- 5.278V
V3.3 --3.315V
V1.5 --1.508V
Vccp --1.248V

That some info from my Bios screen.

54C isn't that bad for a Pentium D, especially if were under load. Have you set the shutdown temperature higher than 62C. or 63C. ? You have to look for a menu in the bios like Pc health(or something similar).

Are the voltages from the BIOS screen alright?

I'll let jam answer that ifg he's still following this thread.

"Are the voltages from the BIOS screen alright?"

The tolerance is 5% +/-, that means the ranges are:

12v = 11.4 - 12.6v
5v = 4.75 - 5.25v
3.3v = 3.135 - 3.465v

The +12v rail is low, the +5v rail is too high.

Would this cause the PC the shut down after running for a while? Like I am talking 20 min and its off. Wont fire back up unless I let it sit unplugged for a while.