Friends Strange Graphics Issues

[iCe-BLaZeD]

Hi people,

my friend has a problem with his computer, since he got it he started having graphical "glitches" such as black spots in textures appearing,... it gradually gets worse over time but when he restarts his pc it is much better for a bit. we took out one of the cards (7900GTO's)... and it still happend no matter which card was left in , making me believe it was due to the motherboard or PSU... but i really dont know...

lately after a bit of playing some games it will crash then no game will start up giving "directx" related errors etc saying things such as no hardware acceleration enabled or detected...

anyone know anything about this problem? if so would love to hear ** experience with it

Thanks in advance

oh... and recently we noticed that when his cables of the screen is shifted slightly it turns the screen blue or pink... but if adjusted it will go normal again,... i think this is unrelated but just noting it here

 

[getcarter]

a full system spec would be helpful!

 

[iCe-BLaZeD]

2 x 7900GTO's
Athlon X2 4800
530W Tagen PSU dual 20a 12v rails i think, cant see it clearly atm ^^..
2gb corsair XMS some ram i dont kno exactly which right now..

uh.. it was a OcUK pre-built job that he bought

edit: atm he only has one gfx card in there but its still having the same issues