CPU Overheating? Software to Check?
David Longley
Over recent weeks I've been getting lots of protection faults in
Windows 95, and I'm beginning to think (after having replaced my
P166's fan and still having them) that it may be the CPU. This is
a standard Intel P166 not MMX. It has a large heat sink and fan.
System also has 2 x 32MB EDO RAMs and a 256K COAST.
Is there any PD software I can use to test the integrity of the
CPU etc on soak?
--
David Longley (check end reply line #)
Longley Consulting London, UK
Behaviour Assessment & Profiling Technology,
Research, Data Analysis and Training Services,
Small IT Systems http://www.longley.demon.co.uk
David Longley
In article <343033...@dhios.demon.co.uk>
K...@dhios.demon.co.uk "Kym ap Rhys" writes:
> Hi,
>
> Why do you think it's the CPU? I've seen dodgy RAM and badly seated RAM
> cause very similar problems. Try reseating your RAM or swapping in some
> RAM from another working machine to isolate the problem.
>
> How hot does your CPU get while running? You say you replaced the CPU
> fan. Did it fail and then the CPU overheated?
>
> Kym
>
The fan fell off at one stage (whilst I was moving the system),
the mechanics for keeping them in place have improved recently so
I installed a new one. I *did* have some trouble with the 256K
COAST at one stage. The machine wouldn't boot at all with it
installed - but that was solved when I cleaned the pins with iPA.
I tested the 64MB over 7hrs using Norton NDIAGS in comprehensive
mode - that seemed to check out OK.
I could do with something that soak tests the CPU and cache
though.
I get Kernel32 protection fault errors quite a bit too, and
sometimes files can't be found which are definitely there - this
is solved by rebooting.
I had this pattern of faults some months ago - and I thought I
had tracked it down to the fan being loose at the time...
rune....@worldnet.att.net
I am putting together a system that I want to use a 200MMX CPU in.
I am concerned about cooling and note that MMX's don't have the plain
flat top that earlier Pentiums had. How do you safely/reliably attach
a cooling heatsink/fan to them? The fans I see around here are flat
as though they were made for 486/586 style encasements. Will they work
with an MMX or is there something special available?
Is there a danger of the regular heatsink causing shorts on the exposed
metal parts?
Thanks.
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Kym ap Rhys
Kris Willms
David Longley wrote:
>
> Over recent weeks I've been getting lots of protection faults in
> Windows 95, and I'm beginning to think (after having replaced my
> P166's fan and still having them) that it may be the CPU. This is
> a standard Intel P166 not MMX. It has a large heat sink and fan.
> System also has 2 x 32MB EDO RAMs and a 256K COAST.
>
> Is there any PD software I can use to test the integrity of the
> CPU etc on soak?
>
> --
> David Longley (check end reply line #)
>
> Longley Consulting London, UK
> Behaviour Assessment & Profiling Technology,
> Research, Data Analysis and Training Services,
> Small IT Systems http://www.longley.demon.co.uk
I was having your problem with a 233. I put a larger fan and heat sink
to no avail. What solved my problem was using plenty of that heat sink
paste between the heat sink and the CPU. Now, I am a believer that you
must use this. I wasted a whole weekend trying to figure out what was
wrong (even aimed a large box fan at the open-cased computer to keep it
cool-which worked). I used the paste and have not had a problem since.
Hope this helps,
Kris
<no_spam>kris....@nokia.nmp.com
<no_spam>kristoff...@MCIONE.com
It comes in a tiny tube and is available at Radio Shack.
Matthew Smith
Hi
No special heatsink and fan required, although it is best to use a modern type,
as they have plastic/metal clips that snap onto the side of the ZIF (CPU)
socket.
They dont cost very much.
Hope this helps.
Jerry W. Dean
Getting the right heatsink is very important, the ideal heatsink would be 2
inches high, w/ fan and made of aluminum.
Also Direct contact with processor for best cooling meaning some heatsinks
have a thin fiber pad which adheres to the bottom of the processor Do Not
use the adhesive pad.
I am speaking from experience, the heatsink w/ pad will run the processor @
around 118 degrees.
A direct contact heatsink will run the processor @ around 94 degrees
To cool it even further to about 88 degrees use processor grease
Do not use a heatsink that is less than an inch high.