CPU Running Hot

Compaq / Presario sr1730t
March 2, 2009 at 13:56:47
Specs: Windows XP, Pentium 4 3.06GHz
Hi, I've looked through these forums for a couple of days now, and have found
a few threads that come close to my problem, but never spot-on.

I'm currently running a P4 3.06GHz (if I had to guess, I think I'd say Prescott,
but I'm not entirely sure), 1GB RAM, and a Asterope Gl8e motherboard. Most
everything is stock from when I originally purchased my computer, with the
exception of my graphics card, GeForce 8600GTS, harddrive and PSU. The
exact wattage of the PSU escapes me, however I know it is an Ultra, and have
never had an issue from when I first installed it, about a year ago. I have one
side in-take fan, and the back panel is ventilated, with the PSU fan blowing

My computer has run fine, with no heating issues since the installation of new
parts back in very late '07. The other week, I cleared out a large bit of space on
my HDD, and after I first did that my PC began experiencing quite frequent
"freezings". It would first bog down to a slow pace, and then just lock up.
However, I'd still have control of my mouse. After a moment, it would return to
normal. So I cleared out dust, reseated things, made sure my fans were
connected, etc. After doing this, the "freezing" stopped, however now I
experience a new problem.

My CPU idles around 48-51*C. This is not exceptionally high, however
whenever I open any program, the temp jumps up to ~60*C, causing my CPU
fan to spin up to ~4200RPM. After a moment, the temp drops back down to a
'normal' state. When I attempt to run any game, the temp runs at around 70*C,
with the fan constantly running at ~4200RPM. I have since reseated my
heatsink, and reapplied thermal grease, with no results.

While this is not a "problem", per se, it is more-so a nuissance, as the fan can
be rather loud. I am also curious as to what could be causing this, as it has
never once done it in the past. On occasion, the CPU fan would run up, but
then return to a normal state. Simply cleaning out the dust in the case and on
the heatsink always fixed this, however I cannot seem to find any solution to it.

Would anyone happen to have any advice/reasoning as to why this could be
happening? I apologize for the length, but I wanted to provide as much detail
as I could, and thanks for any help you can provide.

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March 2, 2009 at 14:16:41
The P4 Prescott was nicknamed "the hot potato" for a reason. The temps you're experiencing aren't abnormal. All you can do is make sure the HSF is installed securely & that you didn't overdo it with the paste. All you needed was a small dab about the size of a grain of rice in the center of the CPU...that's it. It should not have been spread around. Just apply the dab, then install the HSF...that's all there is to it.


The other thing to check is the case cooling configuration. All you really need is a single exhaust fan in the rear of the case. Front intake fans are optional, side panel fans are NOT recommended.


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March 2, 2009 at 14:45:43
Thanks for the reply, jam. However, like I'd said it seems pretty
random for my fan to suddenly be starting up and running so high
to keep the CPU 'stable', and don't understand why it's doing it all
of a sudden.

If it's something I'll have to deal with, then that's fine. Thanks
again for your help.

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