High CPU temperature

January 31, 2010 at 06:13:13
Specs: Windows Vista Premium SP1
Hi, my pc recently just shut down (as if in a power cut) 20min into a game. Rebooted and discovered CPU was overheated! This is first time in pcs lifetime of 2.5yrs.

EVEREST reports the CPU temp to be around 57C-62C when idle (cpu usage 1%). Quickly hits 90C+ at 60-100% usage. Motherboard temp always 25C.

Could it be CPU fan failure, it reads an RPM of 1654. All the fans are still spinning. Voltages are fine.

Intel Core2duo 4300@1.8GHz (some overclocking) 2MB L2
ASUS Motherboard P965 chipset
Nvidia GeForce 7600GS 512MB (w/th fitted fan)
2GB DDR2-750

Need anything else then please ask.

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January 31, 2010 at 06:19:22
The RPM of the fan seem slow. If the fan is large enough it may have been designed to run that slow.

Could be dirt/dust or the fan/s in the power supply.

Could also be a loose heat sink.

Blow out the system using caned or compressed air. Do not vacuum. It will be messy so you may want to move the case to a different location.

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January 31, 2010 at 06:31:46
I think the fan is a 120mm, ill check the heatsink n fan shortly. I had recently opened the case up to remove optional usb cards to prevent the error "usb overcurrent device detected".

During which someone hoovered parts of the interior at distance,

ok cheers

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January 31, 2010 at 06:40:32
If the fan is 120mm it may be rotating at design speeds then. Look at the contact between the HS & die.

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Related Solutions

January 31, 2010 at 12:32:52
My cpu fan is actually only 80mm in size so 1654 RPM is too
small? I dont have any compressed air imminently but is it the
only effective solution?

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January 31, 2010 at 14:05:35
Well, do things look dusty/dirty? IMO that is the only viable method.

Check in the BIOS to see if the processor fan has any settings that you could use to speed it up.

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January 31, 2010 at 15:13:52
Ok ill work on geting compressed air asap
thank you. It is very dusty, which may be
preventing the fan to move 100% freely IMO.

Oh and would attaching a second fan to the
case above the cpu, have any noticeable
effect on cpu temp?

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January 31, 2010 at 15:40:52
You said your MBoard temps are good. Cooling the case more probably won't help the CPU temps. Do you have those pins to hold the heat sink on? They pop loose a lot.

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February 1, 2010 at 10:41:22
Cheers for your help, ive gave my system a good blasting and now idle temps report 30-40C. 22C for motherboard.

I plan to thermal compound in near future too.

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February 1, 2010 at 10:45:45
No problem

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