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Hd 4890 artifacts and bluescreen.

Last response: in Components
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August 31, 2011 11:50:18 AM

Hi there. i recently finished building my pc and have just upgraded to a xfx hd 4890, which is very power hungry, and have encountered problems.

when playing a game on high settings the screen goes blank, has artifacts all over it, and then crashes to a bluescreen or just a no signal cable screen.

i have a generic **** psu and am wondering if it is that that s causing the problem or the gpu. i have underclocked gpu and cpu and that has helped but not solved it

furmark runs fine though.
here are my specs.

AMD Phenom II X4 955 Black edition (UNLOCKED) overclocked @ 3.9 ghz (stable) but i have had to underclock it to reduce power compsumption to 2.1ghz

Gigabyte GA-M68M-S2P (REV.2.3)

ati radeon 4890

Plus artic twin turbo Gpu fan.

2gb ddr2 ram

3 Case fans (one Cooler Master 12cm SickleFlow System Fan - Blue Leds, and 2 Artic f12 fans)

Case:Ezcool H550D BLACK Computer Case

generic 500w psu

500gb sata hard drive 7200rpm

22x sata dvd wrier drive

Windows 7 Ultimate 32bit
a b ) Power supply
August 31, 2011 12:19:45 PM

99% its the crap PSU.
August 31, 2011 12:31:30 PM

cheers for such a quick response.

if i get a new one should i get a CIT 750 watt black edition (hhave you heard of them), or a trust corsair 500w or is that not enough.

thanks in advanced
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a b ) Power supply
August 31, 2011 2:23:45 PM

I would go for a 500W corsair or Antec, I have heard of CIT but I couldn't tell you much more.
September 1, 2011 10:26:32 AM

Thanks again, if i get the cit one i will be sure to let people know if they are any good.

i am still deciding.
!