Re: A PC question.

In article <GjyeF$Y9p2LIFwBh@xxxxxxxxxxxxxxxxxxxx>,
Clint Sharp <clint@xxxxxxxxxxxxxxxxxxxx> wrote:
In message <4fa116a533dave@xxxxxxxxxxxxxxx>, "Dave Plowman (News)"
<dave@xxxxxxxxxxxxxxx> writes
As I said I don't think it's actually a thermal issue as the heatsink
isn't even hot when it shuts down. And it can happen so quickly after
switching on from cold that the CPU wouldn't have time to overheat.
You'd be amazed how quickly a modern CPU heats up, don't forget these
things are dissipating massive amounts of power given their size (some
of the Athlon XP64 chips, 90 watts for a die that's smaller than your
little fingernail), if the heatsink isn't on correctly or not making
good contact you can have an overheating chip by the time it's started
to display POST.

Indeed. Although mine is somewhat over an inch square. And I've not tried
running it without the heatsink.

Interesting read;

http://en.wikipedia.org/wiki/CPU_power_dissipation

Having said that, one of my systems occasionally shuts down because the
BIOS reports the CPU temperature as over 90C on the first power on of
the day, it's lying.

That's more or less what happened to mine - as soon as I could get to the
bios and select the page from a cold start it was reading 40C or so and
rapidly climbed to over 70c and shut down.

Had I needed it at this time then that would have been my approach. And
I do have a new MB, CPU and memory standing buy - it arrived on Friday.
But it will need a complete re-install of everything so I'm putting it
off until forced. ;-)

Hmm, unless your software is locked to the current system for licensing
reasons it's rarely necessary to do a full reinstall, you just need to
know how to wave the magic chicken correctly and reactivate Windows once
the new stuff is installed.

One snag is the new MB requires different HDs. I stuck with IDE with the
old one and the new really needs RAID, since I'd want its one IDE for
other things. I suppose I could fit RAID to the old and transfer
everything? But many say a fresh install is no bad thing anyway.

--
*With her marriage she got a new name and a dress.*

Dave Plowman dave@xxxxxxxxxxxxxxx London SW
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