[RC5] CPU Temperature

Scott Campbell pondafarr at microgear.net
Thu Mar 14 06:53:18 EST 2002

Sure, here is a thermal paste shootout done by ClubOC.


the white grease (a zinc oxide compound) rated higer than the self adhesive
Berquist pads (which are found on many HSF units), but still at the bottom
of the pack.

here is a snip:


     The big winner here is Millisec's Silver Thermal Compound.  This stuff
kicks ass and takes names!  When used on Peltier coolers where extreme heat
and cold are encountered, the Silver Compound really shines separating the
temperature gap even more.  But even then, there really isn't much
difference between the top 4.  At $19.00 you get what you pay for and you're
paying for unbeatable performance.

     The second best choice for performance is Outlaw's Copper Thermal
Paste.  It runs just 1 to 2 degrees Fahrenheit warmer than the Silver
Compound and for only $5.50, this stuff takes a strong second place.  I also
want to note that Outlaw has improved his formula sense the earlier sample I
tested a while back.  This new Copper Paste is much thicker than before
making it easier to work with.

     The AOS/HTC comes in at a very close third to the Copper Paste.  I've
never seen this stuff before so I was shocked at how well it performed!  For
only $1.50 per tube, you just can't loose!

     The Zinc Oxide is right at it's usual 97? F.  I don't care much for
this stuff especially when used with Peltier Coolers.  It doesn't seem to
handle extreme temperatures very well and it has a tendency to dry out.

     The Aluminum Paste placed a disappointing 5th.  I really expected this
stuff to do better than the Zinc but I would still choose the Aluminum Paste
over the Zinc Oxide because of it's ability to withstand extreme
temperatures and it doesn't dry out.

     I wasn't very surprised about the Thermal Pads, they just are not known
for their cooling performance.  They are best put to use in areas such as
video processors and motherboard chipsets where heat isn't near as high as
today's high performance CPUs.  However, I love how these pads come precut
so all you have to do is peal and stick.

  Yes, i know one review does not a truth make, but you'll find similar
results at nost computer sites that have reviewed diffrent heat transfer
  [Scott Campbell]
   -----Original Message-----
  From: owner-rc5 at lists.distributed.net
[mailto:owner-rc5 at lists.distributed.net]On Behalf Of blitz
  Sent: Thursday, March 14, 2002 04:16
  To: rc5 at lists.distributed.net
  Subject: RE: [RC5] CPU Temperature

  You perchance got a source for it?

  At 20:43 3/13/02 -0600, you wrote:

    There are many better products than the white grease...in fact, if you
use a high quality paste like arctic silver II, you'll drop the temp by
several degrees, with the same fan/heatsink.

    NONE of the computer sites i have seen recommend using the white grease
anymore, simply because it isn't very good.

      -----Original Message-----
      From: owner-rc5 at lists.distributed.net
[mailto:owner-rc5 at lists.distributed.net]On Behalf Of blitz
      Sent: Wednesday, March 13, 2002 15:05
      To: rc5 at lists.distributed.net
      Subject: Re: [RC5] CPU Temperature

      Generally, when I have a chip overheat, it stops operating till it
cools down, or starts brainfarting, usually in the IO department. How do I
know? Fans clog with dirt from time to time, making cooling poor to
non-existent. Blow out your CPU fan assy from time to time, like every 6
months...Ive seen this problem on machines at work as well, where the box
sits on the floor and collects rug dirt, hair, and other debris.

      At 14:03 1/13/02 +0200, you wrote:
        I have been running dnetc for a while now and I am curious about how
much it raises my CPU's temperature.  I have a Celeron 800 which runs at
about 55C without dnetc running and 83C with dnetc running.  I do have 4 IDE
devices and a floppy drive in the case.  Is this temperature too high for
the CPU, because I don't want to cause any damage to it.

        I know my hard drives get very warm from constant use but I can't
move them around because of lack of space.  Any suggestions?
      There are booster fans that occupy an ISA slot that might be of
assistance. Also,the fan assy on the CPU should have a nice smear of white
conductive heatsink grease applied before the fan assy is mounted. This
white grease is available at radio shack for a buck for a small tube. Just
ask for "heatsink grease".
      Thats worked for me just fine.

        Ray Booysen
        ID: 320418
        Team - Cow Killers
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