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PIII 700E with Peltier: Need Fix

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Jefferson_One

Registered
Joined
Jun 23, 2001
Hey guys ... I was just next door, and they suggested I ask you:

I bought this CPU from a friend. This was a great upgrade for me, and still is, but I was hoping to overclock this chip.

I can, up to about 800Mhz - but the chip temp. runs about 53 degrees C @ 700Mhz. I know that is WAY too much, but it's a stock everything.

I have looked at the Peltier, and feel like it was not done properly. It comes apart really easy, and I noticed that the PIII 700 has a very small 'rise' in the center. That's the only place to make heat transfer. I need more paste on that, for one thing.

Also, there is a huge gap surrounding the whole chip -- air. I think this Peltier is smothering the chip, causing for such high temps. Case temp is about 32 degrees C.

What can I do? Everything is stable, and I can't believe this this runs at 50+ degrees C!! It has been for over a year now.

I want to re-do this Peltier setup properly. What should I buy (paste, etc.) to do this cooler right?

Thanks -

Jeff
 

Badger

Member
Joined
Mar 11, 2001
That "small rise" you mention is the processor ! The rest is just the pcb which does not need cooling.
My advice is junk the peltier and use good heatsink. Peltiers can work real well with a PIII but you need to know what your doing.
With a good cooler (no peltier) you should be able to hit 933 without much trouble. My PIII700 did 980MHz with just air cooling and a peltier got me to 1050MHz.
 

samuknow

Member
Joined
Feb 19, 2001
Location
Indianapolis, IN
As Badger said, alot can be done with just air cooling. Plus it's easier and safer to use. Pick up a GOOD hsf and you should see grest results.

Good luck
 
OP
J

Jefferson_One

Registered
Joined
Jun 23, 2001
Well, I can't complain too much: I gave $40 & a PIII450 for it :) I've no doubt the peltier they set up is not configured right. I don't know if they should have sealed around the chip, or if they installed the fan upside-down ... which direction is the peltier fan supposed to blow? towards the chip or away?

I'm gonna pull it and just have sink & fan ... that's if I can get it on there good. I don't have the original PIII case either. If I can find instructions on the peltier installation, I will re-do the whole thing.

Does *stable* at 54C sound odd?

Thanks -

Jeff