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What is causing my graphics problems?

PeterT

PeterT

PeterT

Associate
Joined
18 Oct 2002
Posts
835
Location
Solihull
Hi, one of my computers is playing up at random.
Spec is as follows:
Abit Nf7-S
Mobile XP 2500 @ 2500mhz
1G of Corsair XMS 3500
Hercules Radeon 9800XT with cat 7.7
etc

All of a sudden, without warning the graphics will turn into coloured blocks and vertical lines but it is still possible to see the normal screen under the weird shapes. This is normally when on the internet which is what I do mostly.
Pressing the reset button will not remove it, it needs the comp to be turned off properly for things to be returned to normal.
Interestingly you can see the strange patterns as you first start up the comp, long before XP starts loading.
I have tried reseating the graphics card and it is still the same.
All ideas welcomed!!
Cheers, PeterT
 
I have tried it on a different monitor and still the same. Also tried it using the dvi output and atill the same.
It just went wrong again but this time there was the vertical flash of colour banding and then the screen went black. It needed turning off by pressing the start button before I could get it going again.
Keep your thoughts coming please.

PeterT
 
Hi, I am still having problems with graphics corruption.
Today I tried installing another working Radeon card and the problems were still there.
In fact they seemed worse as the pc started shutting down and then rebooting but never getting into windows.
Once it went beeeeeeep and then shut down leaving the fans in the psu spinning and the motherboard lights on.
Could it be the cpu causing the probs.
I have noticed that as it plays up there is a slight clonk from the hard drives and the light on the graphics card faulters almost as if there is a slight interuption to the power supply.
I know it is not the graphics card as I have tried 3 in total, nor the hard drives as the corruption can happen before it gets into windows. Also if it has produced the strange graphics before getting into windows pulling the power supplies off the hard drives makes no difference.
I have just tried reseating the memory and at the moment it is still going!!

All thoughts most welcome!!

PeterT
 
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