Tech Support > Computer Hardware > CPU Cooling
CPU Cooling
Posted by EdwardATeller on June 20th, 2008


I am doing some experiments on cooling my CPU. History and specs can
be found here:

http://groups.google.com/group/alt.c...c27c0b723ad430

I replaced the Zalman cooler with the stock Intel cooler, and now my
chip idles at 43, and plays HD video at 51. I also used some less
viscous thermal compound since I ran out of the compound that came
with the Zalman cooler. The stock cooler is MUCH easier to install,
so I thought I'd try it out. It is also noisier, but this is a server
in the basement, so that doesn't matter that much.

Is running a P4 Prescott 3.0 Ghz at 51 doing any damage? If not, I'd
just as soon keep using the stock cooler. Thanks

Posted by kony on June 20th, 2008


On Fri, 20 Jun 2008 07:22:42 -0700 (PDT), EdwardATeller
<sorry_no_email@yahoo.com> wrote:

No, 51C is fine. Just make sure that the system is still
cool enough with an extended full load, even if you don't
cause a full load with regular use something like a stuck
app or OS problem can cause it and you won't want that to
fry anything.

Run Orthos for an hour and note the max temp, if it is above
roughly 65C you should take whatever measures are needed to
lower that. Sometimes a heatsink or 'sink fan change is not
needed, rather the temp is due to poor case cooling and
improving that can keep other parts cooler as well as CPU.

Posted by EdwardATeller on June 20th, 2008


On Jun 20, 2:14 pm, kony <s...@spam.com> wrote:
Thanks for the tip. I've removed the cover from the computer, so
there is plenty of air flow. As much as I'd love to play with this
further, I think I'll move on to other projects for now. Happy never
to install that PITA Zalman heat sink again.

Posted by hannes on June 21st, 2008


EdwardATeller wrote:
You should take care, because like that, dust easely enters the system.
If you put the cover back on and install some casefans (WITH DUST
FILTER!), I'ts better and also, the cooling wil remain good. If there
enters dust in the cooling, i'ts possible this breaks down and that is
not good for your system.



Posted by larry moe 'n curly on June 21st, 2008




EdwardATeller wrote:
51C is doing no damage at all to the CPU because it has built-in
thermal protection that will automatically slow it down a lot if it
overheats. The biggest heat risks are the hard drives and the
electrolytic capacitors. The HDs can be protected with a fan or by
mounting them vertically, but the only solution to vulnerable
capacitors is replacement with high-quality capacitors.

Posted by kony on June 21st, 2008


On Sat, 21 Jun 2008 17:02:17 +0200, hannes
<hannes@de-bondt.org> wrote:


Most systems don't have filters and do fine providing
they're cleaned out every year or two. Filters are nice
when the case allows for them, and yet they too need cleaned
at least as often (usually even sooner) and also
significantly reduce airflow if fine enough to trap enough
dust to make them worthwhile.

Posted by kony on June 21st, 2008


On Sat, 21 Jun 2008 12:59:00 -0700 (PDT), "larry moe 'n
curly" <larrymoencurly@my-deja.com> wrote:

Sometimes a fan can be mounted such that it keeps caps
cooler too. For example,
http://69.36.166.207/usr_1034/nb_sinks/1.jpg


Posted by John McCallum on June 23rd, 2008


If you realy wish to have the computer to run cooler using a small fridge
modified to hold the case or modfide into a case may help because if the
surounding air is 4 degrees C the whole system will stay cooler.
"kony" <spam@spam.com> wrote in message
news:l32r541v7hq83cdgfs9kfcbhrhr2l2lapr@4ax.com...


Posted by kony on June 23rd, 2008


On Mon, 23 Jun 2008 21:30:02 +1000, "John McCallum"
<delf20k@yahoo.com.au> wrote:


Ok, but some things are quick, easy, cheap, and don't
produce significant external noise. Even the fan I'd
pictured isn't necessary in a typical A/C environment unless
the system were fairly heavily overclocked (which is exactly
why the pictured board was set up as it was, including a
potentiometer mounted to the left of the fan to override the
more limited voltage ranges afforded by the bios).


Posted by Ken Maltby on June 25th, 2008



"hannes" <hannes@de-bondt.org> wrote in message
news:g3j54c$jcv$2@aioe.org...
You can replace the cover with a window screen. Pick up a
simple repair kit from your local hardware store/warehouse.

( I found that the aluminum framing that came with a kit I
got from Home Depot, has a concave edge that matches the
"hinge" of my Antec case.)

Luck;
Ken



Posted by Ken Maltby on June 25th, 2008



"John McCallum" <delf20k@yahoo.com.au> wrote in message
news:485f893a$1@dnews.tpgi.com.au...
Doesn't work. They aren't designed to continuously reject heat
on the scale of a PC. They mainly operate to overcome leakage
and remove excess heat from food added, over time. With an
operating PC in the insulated box you will quickly overcome the
refrigerator's cooling capacity and have a little oven.

Luck;
Ken



Posted by kony on June 25th, 2008


On Wed, 25 Jun 2008 03:45:31 -0500, "Ken Maltby"
<kmaltby@sbcglobal.net> wrote:

In a closed case this would be true of a small frige, but
one could instead have intake air flowing through the
evaporator coil to at least make it cooler than room
ambient.

Posted by jaster on June 26th, 2008


On Wed, 25 Jun 2008 13:01:55 -0400, kony thoughfully wrote:

Such a long way to got when you could buy a portable air conditioning
unit just for the room with the computer. Run the portable keeping room
temp round 68F.


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