[redwave250443]

Mainboard: 845PE, with a integrated display card
OS: Windows XP SP2
''
At first, I entered into BIOS to disable the integrated display card by option 'AGP'->'PCI', then rebooted computer till windows flag flashing appeared, following,the whole screen was blank and nothing was not seen.

I think maybe original display card driver is still in OS that cause the phenomenon and the new display card did not drive correctly. I tried to repair Windows SP with CD and the isse was solved at last. However, the issue appeared again when turned off power and rebooted it. Why? Any help are appreciated.

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When the screen goes blank plug the monitor cable into the integrated card, do you get a display now?

[ZEUS_GB]

When the screen goes blank plug the monitor cable into the integrated card, do you get a display now?

[dsenette]

when switching from integrated to agp cards..you should install the new card...then install all the new driverss for it...THEN disable the onboard video

[redwave250443]

Oh, if I installed as your guide, the screen would not display correctly, just because of this cause, I must repair the Windows XP to enter it......

[dsenette]

? explain that a little clearer please

[redwave250443]

Dsenette, first I installed AGP display card while shutting down computer power, then rebooted computer, entered into BIOS to disable the option 'AGP', changed it and set as 'PCI', then rebooted machine once again.

During the process of re-boot, machine can identify a new display card.However, computer stop to run when Windows XP logo appear. I must repair it if I want to enter OS.

Any unclear detail please let me know. Thanks.

[dsenette]

ok...so...your computer started out with an onboard video card right? then you wanted to switch to an agp card right? what you need to do...is leave the onboard video card enabled...physically install the agp card...boot into windows (still on onboard video..) once you're in windows (you may need to do this in safe mode) install all the most current drivers for the agp card...THEN reboot...get into bios...and turn off the onboard video

[redwave250443]

Oh, I see, thank so much for your warm-hearted help.