Re: BSOD + Black Screen

Bitstring <1142084091.33947.0@xxxxxxxxxxxxxxxxxx>, from the wonderful person Redman <redman1977@xxxxxxxxxxxxxx> said
Ok quite a long one this so apologises in advance.

I normally never switch my PC off. 2 nights ago I decided too. Upon
switching it back on the next day I was greeted with a BSOD just after the
desktop appeared. No info other than a Stop message with a load of numbers.
Rebooted and got to the same place again with another BSOD. Same error
message. Rebooted a third time and this time after the BSOD I got IRQ NOT
LESS OR EQUAL TOO. I rebooted again and got a totally different error
message, this was ongoing and I tried to access safe mode and couldn't. I
tried a roll back without any joy. Left the PC off for a few hours and when
I switched it on it ran up no probs at all. Well for an hour or so then a
BSOD similar to the first few I had. Someone recommended memtest+ which I
ran from a cd and it came up with an error message showing a couple of
errors within about 30 secs to a minute. I then tested each of the 3 sticks
I have individually and they all failed. I then tried them all again in each
of the 3 memory slots individually on my motherboard and they all failed
again. This didn't really tell me whether it was the RAM or the motherboard
that was at fault. I managed to test the RAM in my brothers PC with memtest+
and all the RAM passed. So I thought it has to be the motherboard. Well I
put the RAM back in and booted the PC and no BSOD. I left it running doing
some burn in test from Sisoft Sandra and after that finished it's still
going strong. The problem now is that my TFT monitor screen keeps going
black for a few seconds especially if I'm doing anything intensive on the
PC. I've updated the video card drivers, changed the refresh rate etc but it
still goes black. Any idea what's causing that problem?

Almost certainly the motherboard. A prime candidate is bad capacitors - eyeball for leaking or bulging ones - depending on the age/manufacturer. The problem is that the symptoms can be practically anything and can vary a lot with temperature, or which way the wind is blowing, which makes diagnosis a real PITA.

It =could= be the PSU or th CPU, but I'd bet 'motherboard'.

--
GSV Three Minds in a Can
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