Mailinglist Archive: opensuse (3349 mails)

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Re: [SLE] CPU dies at 55C; time to change CPU, cooler or both?
  • From: James Knott <james.knott@xxxxxxxxxx>
  • Date: Wed, 04 May 2005 09:56:27 -0400
  • Message-id: <4278D48B.9090001@xxxxxxxxxx>
Kevanf1 wrote:
On 5/4/05, James Knott <james.knott@xxxxxxxxxx> wrote:

B. Stia wrote:

On Tuesday 03 May 2005 16:33, Peter B Van Campen wrote:


On Tuesday 03 May 2005 14:45, Carlos E. R. wrote:


The Friday 2005-04-29 at 16:08 -0600, Darryl Gregorash wrote:


That's what he just told him - apply some thermal grease
between the

****************************************snip***************



between the two substances (fills in all the little holes), and
hardens from the heat. Hardly a grease.

The thermal compound that was normally used in electronics, even
before processors needed heatsinks, was called "silicon grease",
and most certainly stayed as a grease even years after applying it
to transistors heatsinks and such. I must have a tube of it
somewhere.

That's probably why modern compounds are still named "grease", even
if they aren't.

Right on Carlos! Thermal compound is usually a 'doped' up silicone
grease. The most common dopant is Zinc-oxide powder.

<snip>

And zinc oxide paste. You buy it in the drugstore. Your mon used to
smear this white paste on your nose to keep it from getting sunburned.

And also on the other end, for diaper rash. ;-)

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Hmmm, is that true? About zinc oxide paste being used ofr heatsinks? If so the heatsink compound manufacturers are making a massive,
massive profit. Zinc oxide cream/paste is very cheap from chemists
shops/baby shops (pharmacies in the US).


It could be that it's made specifically for such use and that the other stuff contains ingredients that are not suitable for electronic devices. At least your computer won't get diaper rash. ;-)

http://www.heatsink-guide.com/content.php?content=compound.shtml


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