Re: P4P800-E dlx and P4 3.2GHz prescott problem


"Rob" <robc@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:jjn_e.370757$x96.355189@xxxxxxxxxxxx
> JohnR wrote:
>
> >My CPU, S478 P4 3.2GHz Prescott, has suddenly and quite abruptly started
> >having apparent overheating problems.
> >It's hovered around 40-45C in the past but recently the case took a heavy
> >knock (don't ask) and ever since, well the last two days, I've noticed
the
> >CPU temperature is skyrocketing to 75-80C at which point the warning
kicks
> >in.
> >I took out the cpu - cleaned heat sink and chip and carefully reassembled
> >but it hasn't stopped the problem. The case never has the side on so
plenty
> >air is being moved and the fan is working fine albeit a low speed one,
which
> >had worked fine until recently.
> >The heatsink is too hot to touch so I'm assuming the temperature readings
> >being reported are reasonably accurate. Other than the CPU temperature
> >everything appears to be working perfectly. My question is - can the CPU
be
> >damaged causing it to run hot like this but still work properly in every
> >other way?
> >Also heavy use of the cpu causes a dramatic rise in temperature which I
> >hadn't seen previously to any great extent.
> >I get the new board tomorrow (P4GPL-X) but don't relish sticking a
damaged
> >CPU in it. Then again at least I'll be able to see if the problem is
> >repeated there.
> >
> >Any advice greatly appreciated.
> >
> >
> >
> John,
> Sounds like the CPU is probably working OK, based on the responses to
> the testing you've done. Since you've already cleaned and remounted the
> Fan/HS assembly, my best guess is your fan has slowed a considerable
> amount or a couple of wads of dust got knocked loose from somewhere and
> they're now trapped in the fins of the HS, causing the fan to be less
> effective.
>
Slightly embarrassing oversight on my part - yes the fins were blocked.
Thanks.


.

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