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Driving me nuts...


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#1
dlcampbe

dlcampbe

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I have 2 computers with ATI Radeon AGP video cards, both work just fine. One card is a Radeon 9800 Pro on an ECS Intel motherboard and the other is a Radeon 9700 Pro on an Asus AMD motherboard both computers use the latest video drivers from ATI.

Now, I want to use the 9800 Pro in the computer that currently has the 9700 Pro, but when I exchange the 9800 card for the 9700 card there is NO video signal. I've checked the bios for the correct AGP VGA setting, that didn't help. I put the 9800 Pro back on the ECS mobo and it works OK.

I know there is a simple explanation for this, but it's beyond me. :)

Edited by dlcampbe, 30 October 2007 - 12:26 PM.

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#2
SRX660

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You will need to uninstall the 9700 video drivers and install the 9800 video drivers for the 9800 card to work. This does not just happen to ATI video cards. Consider yourself lucky if you don't have to reinstall windows. I have had quite a few computer's brought to me to reinstall windows after customers have switched to a newer Nvidia card without uninstalling the old video drivers. It seems that Nvidia will crash the computer when you do that, and it ends up either continously rebooting or just crashing to a blue screen.

SRX660
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#3
dlcampbe

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You will need to uninstall the 9700 video drivers and install the 9800 video drivers for the 9800 card to work. This does not just happen to ATI video cards. Consider yourself lucky if you don't have to reinstall windows. I have had quite a few computer's brought to me to reinstall windows after customers have switched to a newer Nvidia card without uninstalling the old video drivers. It seems that Nvidia will crash the computer when you do that, and it ends up either continously rebooting or just crashing to a blue screen.

SRX660

Thanks for your reply.

I did, however, uninstall the 9700 video drivers before the swap. When I tried to restart there was no video signal prior to post, no beep, nothing.

I did not mention that the computer that originally had the 9800 has a 400W PSU, the one I'm trying to install the 9800 in has only a 380W PSU.

Guess I'll have to switch PSUs also. :)



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#4
dlcampbe

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OK, I switched PSUs, the 9800 still will not post. I also put the 9700 in the other computer without changing the ATI drivers and it booted right in to Windows.

Go figure?
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