HELP! CPU is getting overheated to 85 degrees!

[VishalJM]

Hi there,

My computers idle temperature is 56 degrees celcius. When I use Intel Thermal Analyser on 100% workload the temp goes to 85 degrees at which the thermal monitor becomes active and the CPU clock speed drops to < 1600Mhz. The other strange thing is when my computer is idle the clock speed is 1638 Mhz (well below the 2128Mhz max frequency).

Is there's something wrong with this - or is this normal?

My computer specs are given below - I am using a standard intel heatsink and fan, I have removed the thermal pad and used arctic silver (think I need to reapply?). Could my case be trapping the heat in? Or do a need a better heatsink/fan combo? I have used to Mobo software to max out the CPU fan (1939rpm). Chassis fan running at 1436rpm.

Whats wrong??? I am really stuck. Any help would be appreciated.

Cheers,
Vishal

Windows Vista Home Edition
Asus P5B Deluxe WiFi AP Mobo
1024mb (2 x 512mb) Corsair RAM
Intel Dual Core E6400 CPU
Gigabyte 6400GT 256mb GPU
Creative X-Fi ExtremeMusic Soundblaster card
Corsair 520W PSU
ATi TV tuner card
Lian-Li PC-G50 case
250Gb Seagate SATA Harddrive x 2
Liteon DVD writer

[VishalJM]

Hi there,

My computers idle temperature is 56 degrees celcius. When I use Intel Thermal Analyser on 100% workload the temp goes to 85 degrees at which the thermal monitor becomes active and the CPU clock speed drops to < 1600Mhz. The other strange thing is when my computer is idle the clock speed is 1638 Mhz (well below the 2128Mhz max frequency).

Is there's something wrong with this - or is this normal?

My computer specs are given below - I am using a standard intel heatsink and fan, I have removed the thermal pad and used arctic silver (think I need to reapply?). Could my case be trapping the heat in? Or do a need a better heatsink/fan combo? I have used to Mobo software to max out the CPU fan (1939rpm). Chassis fan running at 1436rpm.

Whats wrong??? I am really stuck. Any help would be appreciated.

Cheers,
Vishal

Windows Vista Home Edition
Asus P5B Deluxe WiFi AP Mobo
1024mb (2 x 512mb) Corsair RAM
Intel Dual Core E6400 CPU
Gigabyte 6400GT 256mb GPU
Creative X-Fi ExtremeMusic Soundblaster card
Corsair 520W PSU
ATi TV tuner card
Lian-Li PC-G50 case
250Gb Seagate SATA Harddrive x 2
Liteon DVD writer

[ktkendall]

If the heatsink isn't on perfectly level, and snapped in properly, then that could cause the problem you are having.

[pam123]

Yes it's too high.
The dual cores are not the heat monsters the last set of Intel processors were but you've definitely got something going wrong and the processor it throttling down in self-protection.

Go back in and check the position of the heatsink it may not be installed correctly ( Getting the thing on backwards or unevenly can be considered a common hazard of pc building. )
You did not have to replace the heatsink pad, it works quite well and messing with it voids your warranty, but since you did how did you apply the arctic silver?
If in doubt remove the heatsink and the processor, clean both thoroughly and try again.
How to instructions here : http://www.arcticsilver.com/pdf/appinstruct/as5/ins_as5_intel_dual_wcap.pdf

[FLG]

Did you apply arctic silver per instructions on there site? Too much thermal Paste is just us bad as to little. The reason for the dropping clock speed is to keep the temp down so the CPU does not fry.

[Alaron]

__Moderator Note__

I merged your threads together so we can follow along. In the future, please do not cross post.

[VishalJM]

Sorry for cross posting - thought it was in the wrong forum after posting and I didn't know how to delete the old thread.

I did apply the AS as per the instructions. 1 thin stripe down the middle. The weird thing was that it was working as soon as i made the build and the T were 44 when idle and 70 when maxed out and the CPU frequency did not drop. The only changes i made were that i re-arranged the tv tuner and GPU card so the GPU was closer to the CPU. Would this make a difference? The other thing was that I was travelling between cities - i kept the unit in a protected box but maybe the heatsink got dislodged.

Anyhow....I'm going to reposition the heatsink and see if that helps.

Will the temps I have now cause immediate damage to my PC if i'm using it (just using PC for email and music at the moment)? Or should i turn the pc and try and repair it before i start using it?

Thanks,
Vishal

[pam123]

High temps will shorten the life of your components.
Turn off the PC an unplug it.
When you remove the heatsink/fan combo clean both it and the processor and reapply the Arctic Silver following the instructions.
When you reinstall be especially careful, like we said it sounds as if you've got it mis-aligned.

[VishalJM]

Just to update you. I thought I'd have a fiddle before I ordered anything so I opening up the comp and removed the psu unit so its out of the case (so i have access to the HS/fan). Then I checked each of the pins on the HS that plug into the Mobo. One of them was ever so loose. So I clicked it back into place and restarted the comp with the psu outside the case.

My new temp readings are:
40 degrees for both cores when idle and 62 on 100% workload for 5 mins.

Should i bother reapplying the AS5 or should i leave it as is?

Cheers,
Vishal

[ktkendall]

Those are pretty decent temps.

[pam123]

So you had an unevenly seated heatsink?
At those temps it looks like you're good to go.

[VishalJM]

So you had an unevenly seated heatsink?
At those temps it looks like you're good to go.

Yes! It looks like it. My idle T is between 35-40 now!

Thanks for the help everyone.

Vishal

[mose84]

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