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OMG! Processor overheating AGAIN!


golinux

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Some of you may remember that my 1 year old P4 2.8GHz burned out last April. Intel sent a replacement and most of the time it stays acceptably cool. However, last night I discovered by accident that when encoding a video, the temp runs over 70 degrees!!!! The accident was that I left Asus probe running - usually I shut down all running processes.

 

I called Intel and they are sending a new fan and thermal goo. I'll also blow out the case tomorrow. In the meantime, I am really freaked out to think it has been running at this temp everytime I encode something.

 

Guess I need some hand-holding . . . and maybe some insight as to why this is happening. This can't be "normal" . . .

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The new fan and thermal glue should help.

 

You might need an auxilary fan to get the air flowing.

 

Do you have a lot of 'space' in the case? The more hardware you stuff into it, the less air flow. Also, do you have a lot of air space around the case? I keep my tower on top of the desk with plenty of space around it. Do you turn the computer off occasionally?

 

There are a lot of things inside the computer case that might be overheating and contributing to the problem. You might need someone with some good testing equipment to test the components.

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The new fan and thermal glue should help.

 

You might need an auxilary fan to get the air flowing.

 

Do you have a lot of 'space' in the case? The more hardware you stuff into it, the less air flow. Also, do you have a lot of air space around the case? I keep my tower on top of the desk with plenty of space around it. Do you turn the computer off occasionally?

 

There are a lot of things inside the computer case that might be overheating and contributing to the problem. You might need someone with some good testing equipment to test the components.

Thanks for your thoughts.

 

There are case and power supply fans. The tower has plenty of room inside and it's only on when I'm using it. The air intake side is not blocked

 

Motherboard is not overheating, just the processor during encoding. I can edit, have lots of apps open etc. and it doesn't break a sweat.

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Was that over 70.C, Sisterscape? My CPU regularly hits 64 or 65.C when I'm encoding a movie, but doesn't hit 70 since I cleaned the heatsink and applied fresh thermal paste. It's a 3.2GHz P4 multi-threader, and uses both halves of the CPU if it's encoding with a decent codec.

 

Here's some handholding which I hope will help you,

If you're going to break the thermal layer between the heatsink and the CPU, it's a good idea to clean both surfaces with a rag moistened in kerosene, and finish with a wipe of isopropyl alcohol before you smear a new thin layer of thermal goo and lock the heatsink down again. This makes sure there are no hardened bits of the old goo in the way and preventing good thermal conductivity.

 

There are fans which speed up if they heat up, but they have to be in good thermal contact with the heatsink to work properly. If the hub of the fan has an airgap between it and the heatsink, then it won't sense a hot heatsink and speed up.

 

Something which is useful is to occasionally brush the top of the heatsink under the fan, to remove dust and fibers from the heatsink. If you don't do this you can have a little mat of garbage which will effectively stop the airflow from cooling your CPU.

 

Here's a machine I was working on tonight, which shows the stuff you need to remove. It shows the CPU with fan;, the fan removed to show the gunk; and the cleaned heatsink.

post-208-1172136261.jpgpost-208-1172136290.jpg

 

Please note: remove the fan (screws at the corners) to do this, NOT the heatsink. Otherwise you break that thermal bond and need to clean and reapply goo.

post-208-1172136325.jpg

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Good point Brendon

 

The reason btw for all the fluff, dust and gunk is the airflow through the case - as warm air expands and pushes out, cool air is sucked in - this carries dust and so on from the air which settles everyehwre ena anywhere.

 

It used to be a real pain on the old valve (tube) TV sets - 1/8" of thick black 'soot' used to settle on everything inside and, strangely enough, it was always in the cleanest houses. We put that down to people actually dusting (which left dust particles in the air). The reason for the black soot is that, back then, coal fired were the norm. Newer sets tend to collect a grey dust layer.

 

You can get dust filters for the air intakes I believe

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Was that over 70.C, Sisterscape?

It was runinng between 70 and 73. Ouch . . .

 

I am going to take some compressed air to it as soon as I can find the time for a hardware 'adventure'. As to the replacement, I'll take it to the local computer guy complete with your instructions. Bet he'll love that!! LOL! :)

 

Thanks for the info and sympathy.

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It was runinng between 70 and 73. Ouch . . .

 

I am going to take some compressed air to it as soon as I can find the time for a hardware 'adventure'. As to the replacement, I'll take it to the local computer guy complete with your instructions. Bet he'll love that!! LOL! :lol:

 

Thanks for the info and sympathy.

 

 

Sister, have that local computer guy identify your motherboard make and model #?

Why, I and several others including the South Pacific guy above use it, MBM. I also have a Asus MB and have Asus probe but like MBM much better! Below are some screen shots and normal temp for my 2.8 P4 and a video encoding temp for the 2.8 P4 with MBM. The red is the cpu the black is the MB temp. After installing a cooldrive6 fan controller and monitor device, I was surprised that less fans and slower speeds of those fans, keep the PC at lower temps, a pic below.

 

MBM.jpg

 

MBM1.jpg

 

CoolDrive1.jpg

 

cd

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Sister, have that local computer guy identify your motherboard make and model #?

Why, I and several others including the South Pacific guy above use it, MBM. I also have a Asus MB and have Asus probe but like MBM much better! Below are some screen shots and normal temp for my 2.8 P4 and a video encoding temp for the 2.8 P4 with MBM. The red is the cpu the black is the MB temp. After installing a cooldrive6 fan controller and monitor device, I was surprised that less fans and slower speeds of those fans, keep the PC at lower temps, a pic below.

 

cd

Thanks for the input. The MB is Asus P4P800 SE. I blew out the case - not that much gunk in there but currently MB at 34 and processor at 39 so it seems to have helped. I'm going to encode a video now and will report back later on the results - heading out shortly.

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I have an identical Asus MB as the one you have sister... and just using it as a BU. However I might have some different hardware on my MB than yours (i.e.video card etc.) that might give off some additional heat, but my computer runs at a pretty constant 34 degrees MB, and 36 degrees processor. If your computer processor OR MB is actually running at 70 degrees, assuming C. (That's 158 degrees F. !!!) I doubt very seriously if the processor you have would take that kind of heat for very long.

 

However, if you were talking about 70 degrees F, that's only slightly over 21 degrees C. Which is a much lower temperature than that processor would really be running at.

 

Frank...

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If your computer processor OR MB is actually running at 70 degrees, assuming C. (That's 158 degrees F. !!!) I doubt very seriously if the processor you have would take that kind of heat for very long.

Yup, centigrade. Processor is still under warranty if it does blow again but for now all seems to be OK. Hardware . . . :angry2:

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Well have you downloaded it yet and what do you think?

 

3Degs.Network Intel Model 478 Temp Report.

 

http://www.3degs.net/mbmcfg/index.php?page...ults=intel_done

 

Release date: 2004-06-18Software: Motherboard Monitor 5.3.7.0

 

What I'm running on a Asus P4P800 Deluxe.

 

http://www.3degs.net/index.php?page=webfil...n1=nav_webfiles

 

cd

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Well have you downloaded it yet and what do you think?

Yes, it is happily running in the system tray. Reading 40 and 36 right now. It's going to take a while to figure out all the options etc. . . .

 

FWIW, yesterday the MBM link was giving a bad gateway timeout so I had to download from elsewhere. ;)

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