Radeon 9250 256mb PCI - strange problem

[surplomb]

Since i dont have any agp slots I got the 9250 2 days ago (going up from on-board intel extreme 2, which i disabled). Problem is, whenever i play any recent game (such as half life 2) i get weird colored shapes that move around on objects depending on how i look at them (they often dissapear when im really close to the object...). Ive tried changing drivers, settings etc, nothing works. i know the card isnt defective since i already exchanged it

heres my system
dell dimension 3000

intel p4 2,8 ghz
768 MB RAM
windows xp
phoenix ROM BIOS plus version 1.10 A02
soundblaster live
250 w power supply (not sure what make)
dx 9.0c

help would be nice... thanks
surplomb

 

[surplomb]

Hope this helps... attached a few pics

 

[surplomb]

could it be that the card is underpowered with a 250W power supply?

 

[vnf4ultra]

video problems

It seems like it's using textures in the wrong places. I don't know what does that though. I doubt a low power psu would cause that, it likely would either work, work but crash when running at high power consumption, or not work at all. Possibly some setting? The 3000 has integrated graphics right? Are they disabled in the bios?

 

[surplomb]

yes the 3000 does have intergrated video, i disabled it through windows already...

i checked the bios, heres what i found:

primary video controller : AUTO (only other choice was 'onboard')
onboard video buffer : 1mb

and about power consumption, i have 2 hds, scanner, drawing tablet and 768 mb ram... may need alot of power, but as you said it wouldnt affect textures and such...