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Dual Monitors will make pc lock on bootup

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Last Modified: 2013-11-08
I have a pc with Windows XP on it and an integrated video.  I bought a PCI card which was an ATI Radeon so I could set up Dual Monitors.  I installed the card and setup the extended windows screen to get this working.  One monitor plugged into integrated and one into the PCI card.  I restarted the pc about 4 times and everytime it booted up.  Now after the weekend when trying to boot the pc it freezes on the Windows XP screen with the progress bar on it.  This is the second graphics card this happened to me with on this pc.
What direction should I go in now?
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Senior Engineer
CERTIFIED EXPERT
Commented:
If you want to use dual monitors.  I would suggest getting a card that does the whole thing by itself.  I have a Radeon 9800 pro and have never had a problem with dual monitors.

Turn off the onboard video to make sure there won't be any conflicts.

As to what your current issue is I would guess that the mixed video drivers are having some sort of conflict with each other.  Make sure you are using the latest video drivers for each adapter and if you already are, try using some older ones to see that makes anything better.

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Commented:
I agree you need to purchase a card that supports dual monitors they should not be expensive

Author

Commented:
But this is the question I want to know.  I have been working with tech support a few times trying to get the graphics card to work on a pc which is an HP dc 7100 with windows XP and still do not have a working properly.  Extended windows does work but getting other problems.  When I install the graphics card I get 4 monitors showing up on the Display properties, Is this right?  And if I just restart the pc or shut it down and power it up right away it boots everytime.  If I power the pc down and leave it shut off for a while and then turn it back on that is when it freezes up on boot in the Windows XP boot up screen with the progress bar.  Then to get it to work again I have to power down and re-sead the graphics card.  Also when it does boot up it starts with the PCI graphics card showing the screen and then when it gets to the Windows login screen it switches to the Integrated video for primary screen and stays at that then with the PCI one being used for the extended screen.  It seems like the boot up is not sure what screen to use for primary at first and when it becomes to much of a conflict that is why I am getting locked up I think.  
I now took the graphics card out and installed it in an identical pc with the same applications on it and it is working perfect now.  So what do I have to look at on the pc that could be causing this?
IRQ's possibly?
Updated BIOS?
Commented:
I would lean more on the side that maybe the BIOS but it still would not comfort me knowing that you are using both rather than having the one video card. If i was you i would really go purchase a video card and reduce the risk of any damage to the board. The fact that you have to re-seat the video card is not the greatest sign.

One other thing to try is when you are using both monitors and shut down wait then reboot acording to what u have told us is that it only brings up on the video card until windows has loaded true? try going into the bios and make sure that the onboard video is still enabled. if not or if it switches on while u are in bios i believe the problem would be with the bios but still recommened purchasing a video card with dual moniter outlets just to be safe i mean your better off spending an extra $70 and being safe than spending 200 or 300 dollars on a new board!

Thats what i think any way.
THANKS

Author

Commented:
I ordered a video card with dual monitor outlets now.  I just was trying to figure out what was causing this since it works fine on other pc's.
Thanks for your input on this.

Author

Commented:
Thank you
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