How do I test a Graphics Card?

  lightfeet 23:08 24 Dec 06

After a major crash the screen displayed closely spaced blue dots forming horizontal lines about 5mm apart scrolling slowly down the screen. Because of the crash I initially thought it was a hard disc problem but printouts are clean. I think my Graphic Card is faulty but is it possible to test the card before I order a new one? The existing card is a NVidia Ti4400 with DVI output to an LCD screen.

  woodchip 23:10 24 Dec 06

Only by changing it

  gudgulf 23:15 24 Dec 06

.....Or trying your card in another pc.

  User-312386 23:16 24 Dec 06

has your mobo got onboard graphics?

If so remove the graphics card and enable onboard and see if that works

Also see if the card has become unseated

  sean-278262 23:17 24 Dec 06

Stick the card in someone else's computer and see if it replicates the fault.

  Stuartli 23:17 24 Dec 06

Could just be not enough oomph from the PSU - graphics cards required a good number of watts.

I had an ATi card that exhibited similar symptoms and, in the end, I had to get a 500w PSU.

  alB 23:24 24 Dec 06

Try one of the free downloads from click here ...alB

  lightfeet 23:27 24 Dec 06

Thanks for your prompt replies. I'm not happy about touching someone elses computer & I don't have a spare one of my own to try the card in.
Stuartli,regarding the PSU, could it suddenly have a low output since it & the card has worked OK for the past 5 years?

  lightfeet 16:01 24 Jan 07

Have now fitted new Graphics Card & the display is now back to normal - gteat. Thanks for all your help

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