HELP! "Invalid scan freq." error!

[cowsclaw]

Im upgrading from a Matrox G550 to a Gainward 5900nu 128mb. After removing the G550 drivers and physically installing the 5900nu, it POSTs and then it starts to get past the Windows XP screen, but then the screen turns black and gives me an "Invalid scan freq." message on my monitor. Also, on the Windows screen as well as the first screen that pops up on boot (I guess it's the POST screen - tells you what BIOS version you have; where you press DEL to enter BIOS), there are 5-6 vertical stripes running the length of the screen. Does anyone know how to fix this?

here are my specs
P4 2.4B
Abit IT7 Max2 v2
1GB Kingston HyperX PC4000
Fortron FPS300-60PN
120GB Seagate HDD
Gateway VX900 monitor
Dell P990 Monitor
(tried with both monitors)
1x Dvd burner, 1x dvd-rom

Yeah, I know it's time for a new power supply. I'll buy a new one if I have to, but I was wondering if anyone knew how to fix this problem. (I unhooked the two dvd drives to see if it was lacking power, but it still didnt help)

also, tried to boot to safe mode, but it still gave the same problem.

THANKS!

 

[cowsclaw]

no one?

help!

 

[cowsclaw]

anyone?

 

[AnnoyedGrunt]

I can't give you any definite answers, but I will say that display corruption during POST is a bad sign. My understanding is that at that time, the computer is running in pure VGA mode, which means there are no drivers running or anything. That leads me to believe that you either have a problem with the card, or perhaps a problem with the powersupply or maybe the card isn't fully seated into the AGP slot (although if that was the case I think you'd get no video at all).

You might want to try the card on another computer (maybe a friend's or if you work at a company with an IT department maybe you can get one of those dudes to help you out) to see if you can replicate the problem on a different computer.

Good luck!

-D'oh!

 

[cowsclaw]

thanks. i got the same problem on a friends computer. but the PSU is questionable on that one too.