"Craig" <caheaton@netzero.net> wrote in message
news:1166558456.944010.311750@i12g2000cwa.googlegr oups.com...
> Hello,
> My computer (a three year old homebuilt Athlon based PC) just
> recently starting giving me random blue screens. These only seem to
> occur when the pc is warm (problem begins about half an hour after
> turning on the pc, with pc undergoing light usage (office apps, email,
> etc.). The problem first exhibited itself, however, during a game of
> Doom 3. After warming up, the computer is practically unusable, with
> blue screens occuring immediately after logging in (and sometime
> before). If I let the computer sit for a couple of hours, all is fine
> until it has warmed up again.
>
> I've checked my CPU temps and they are same as always....around 49
> degrees C (around 53 C after processor intensive activities). The
> voltages on the power supply all appear okay according to a utility
> that came with the mother board. I've added no new hardware nor have I
> downloaded any updates recently. The problem persists even with the pc
> booted into safe mode.
>
> I'm beginning to suspect that one of my DIMMs may have gone bad, there
> is a problem with the power supply, or with the chipset on the
> motherboard. (Although I do have it undergoing additional cooling by
> offsetting the oversize fan on my cpu such that it blows onto the
> northbridge chip's heatsink. But if it was the RAM, shouldn't the
> problem also occur when the pc is cold? The fact that it only occurs
> when warm makes me wonder about the power supply (despite the nominal
> voltage reports). The chipset would be scary...no way to test this
> without purchasing a new board and if I did this I may was well scrap
> the pc alltogether and build a new one!
>
> Anyway, this is a tough nut to crack and am wondering if anybody else
> cares to shed insight into this problem.
> Craig
>
Go check your Event Viewer first to make sure you don`t
have any Application or System errors.
That`s easy, and free.
The next worst problems, are Overclocking (heat generation),
and possible memory or PSU problems.

You could d\load a memory test program, and run it, to
test your RAM
Now you`re on your way <g>.

www.memtest86.com/
http://www.short-media.com/download.php?d=458