1. Tried starting in Safe Mode?
2. Downloaded the most recent driver for your new card and placed the driver files on the machine, then attempt to reinstall the new card?
3. Tried taking the card back and getting a replacement card? Maybe it's just a bad card.
Hope this helps.
I have a dell dimension 8200 circa 2001. 1.7ghz p4. I've upgraded the rdram to 512 mb. I have 2 hd, 80gb and 160gb(for video editing). Just this week I got an ATI AGP radeon 9600xt 256 mb ddr graphics card to replace my old one, 32mb geforce2 mx.
After installing it, I wasn't able to get my new card to work (my monitor only said "monitor in power save mode, activate using pc" and I was not able to get any other picture) so I talked to dell tech support and after an hour he figured out that the card itself needs between 325 and 350 watts of power to run. My computer has 250W power. The dell tech guy, along with others I asked through different forums, said the answer was to get a 400W power supply upgrade. I did that today.
After installing the new 400w power supply my computer seemed to run slightly faster than before and very well WITH MY OLD GEFORCE2 CARD.
I again replaced that card with the new 9600xt card and got the same message!! "monitor in power save mode, activate using pc".
So now I'm trying to find the answer on how to get my new card to work so I can play some wicked cool games and edit some video.
Any help is greatly appreciated. Thanks.