[SOLVED] New heatsink makes PSU rapidly overheat

Kaoillanthe · 02-10-2008, 07:28 PM

Hi, everyone.

I have an Allied 400W ATX. Recently, I decided to replace my old aluminum Intel stock heatsink with a copper-finned heatsink from Startech to cool my 3 GHz Intel P4 Prescott.

I applied the thermal grease and booted it up. The BIOS reports the CPU temp as normal temperature, so I'm pretty sure the grease was applied correctly. I boot up Windows, and Speedfan says that my PSU temp is about 70C! I decided to monitor it and it rises until it hits about 90C where the computer automatically shuts down.

Can anyone tell me why my PSU is suddenly overheating?

scapedriver · 02-10-2008, 08:31 PM

Thermal paste applied? what are your temp setting in bios set to shut off your rig?

Kaoillanthe · 02-10-2008, 08:38 PM

Quote:

Originally Posted by scapedriver

Thermal paste applied? what are your temp setting in bios set to shut off your rig?

It doesn't look like there are any.

Kaoillanthe · 02-10-2008, 09:21 PM

(By the way, if it helps, I activated my system display so people can see most of the loads on my PSU.)

scapedriver · 02-11-2008, 10:54 AM

Quote:

Originally Posted by Kaoillanthe

It doesn't look like there are any.

In your bios there isn't any options that your able to set your pc to power off on certain CPU temps?

dai · 02-11-2008, 11:09 AM

check here that you applied it ok
http://www.arcticsilver.com/arctic_s...structions.htm
and the psu is a bit on the light side for a prescott which can cause heat problems

Kaoillanthe · 02-12-2008, 03:46 PM

Oh, I am such a doof.

Apparently I plugged the heatsink into the wrong plug on the mobo, which made it register as the power. Meanwhile the CPU was just heating itself into oblivion as the system temps are pretty cool. Sorry about that.

02-10-2008, 07:28 PM	#1 (permalink)
Kaoillanthe Registered User Join Date: Aug 2006 Location: Houston, TX Posts: 25 OS: Windows XP Professional SP2 My System	[SOLVED] New heatsink makes PSU rapidly overheat Hi, everyone. I have an Allied 400W ATX. Recently, I decided to replace my old aluminum Intel stock heatsink with a copper-finned heatsink from Startech to cool my 3 GHz Intel P4 Prescott. I applied the thermal grease and booted it up. The BIOS reports the CPU temp as normal temperature, so I'm pretty sure the grease was applied correctly. I boot up Windows, and Speedfan says that my PSU temp is about 70C! I decided to monitor it and it rises until it hits about 90C where the computer automatically shuts down. Can anyone tell me why my PSU is suddenly overheating?

02-10-2008, 08:31 PM	#2 (permalink)
scapedriver Registered User Join Date: Feb 2008 Posts: 82 OS: XP Pro SP2 My System	Re: New heatsink makes PSU rapidly overheat Thermal paste applied? what are your temp setting in bios set to shut off your rig?

02-10-2008, 09:21 PM	#4 (permalink)
Kaoillanthe Registered User Join Date: Aug 2006 Location: Houston, TX Posts: 25 OS: Windows XP Professional SP2 My System	Re: New heatsink makes PSU rapidly overheat (By the way, if it helps, I activated my system display so people can see most of the loads on my PSU.)

02-11-2008, 11:09 AM	#6 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,753 OS: win 7 32x 64x rtm	Re: New heatsink makes PSU rapidly overheat check here that you applied it ok http://www.arcticsilver.com/arctic_s...structions.htm and the psu is a bit on the light side for a prescott which can cause heat problems __________________

02-12-2008, 03:46 PM	#7 (permalink)
Kaoillanthe Registered User Join Date: Aug 2006 Location: Houston, TX Posts: 25 OS: Windows XP Professional SP2 My System	Re: New heatsink makes PSU rapidly overheat Oh, I am such a doof. Apparently I plugged the heatsink into the wrong plug on the mobo, which made it register as the power. Meanwhile the CPU was just heating itself into oblivion as the system temps are pretty cool. Sorry about that.