upgrade from agp to pci-e and get blank screen?

[tenchi]

I am using Asrock 939Dual-Vsta mb with EVGA 6800 AGP and antec Neo HE 550. I tried to replace the 6800AGP to 7950GT PCI-E card and I get blank screen when windows xp starts to load. I changed the bios setting to PCI-E and it's still the same. If I keep both AGP and PCI-E and default set to AGP and it will boot fine. If I disable the AGP in windows xp, it will post, then blank screen, then switch to the 7950GT PCI-E and display fine after entering the window, but if i remove the AGP card, I get blank screen again. Does anyone have same experience or know how to fix? I dont' want to keep the agp card in the system, because it's creates more heat and more noise.

I would really appreicate any help.

Thanks

 

[Conky]

I have the 775-DualVSTA and if the 939 version is anything like this one then you aren't supposed to run both types of videocard at once.

I moved from an AGP ATI card to a PCI-E Nvidia card with no problem. I did run Driver Cleaner 3 first so maybe you might want to do that too.

 

[Hyperlite]

yeah i would reinstall drivers.

 

[tenchi]

Just tried it, it now goes blank as soon as it shows windows loading screen 8(

 

[Conky]

I find these ASRock boards to be a little finicky on the settings so I would try clearing the CMOS or if you can still get into the bios screen then set everything to default.

Doing this and a proper driver clean should get you going unless your new videocard is simply FUBAR.

 

[tenchi]

nothing I do will make it work, as soon as windows starts to load, my monitor stopped getting signal from the video card. I tried to repair windows xp install and same, as soon as it shows windows xp loading screen, my monitor goes blank and says no signal. I tried 2 PCI-E cards 7950GT and 7900GS and both the same. Anyone know what's causing the video card not sending signal to monitor when windows xp starting to load?

 

[beggerking]

boot into safe mode. If you can get into safe mode, then its a problem with driver.

if its a problem with driver, you'll see all of them *in safe mode*, delete all and use generic windows driver.

shut down, boot normally, you should be able to boot into windows with generic driver. After you boot into windows, install driver for your new pci-e card.

 

[tenchi]

I can't get into save mode, the monitor stopped getting signal from video card whenver windows starts to load, doesn't matter safe mode or regular windows xp...

 

[beggerking]

boot into windows using your original videocard ( if it has a built-in, use it) and select generic videocard 800x600 driver. uninstall all drivers from add/remove software.

boot into safe mode, manually delete all drivers from device manager.

remove your agp card / disable built-in video from bios
set primary videocard to pci-e
insert new videocard, reboot

see if you can boot into windows using generic driver..