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Cards installed, no video.. HELP needed!

post #1 of 24
Thread Starter 
I just got my two 6870s so I uninstalled my Nvidia drivers, booted into safe mode and ran driver sweeper. I then turned off my computer removed my Nvidia gpu and installed my two 6870s. I booted my computer and I have no video. Did I miss something?
post #2 of 24
Quote:
Originally Posted by Moheevi_chess View Post
I just got my two 6870s so I uninstalled my Nvidia drivers, booted into safe mode and ran driver sweeper. I then turned off my computer removed my Nvidia gpu and installed my two 6870s. I booted my computer and I have no video. Did I miss something?
Do you have the SLI cable linking the two cards together? Do you have power connectors running to the cards?
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Johnny Five
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post #3 of 24
Thread Starter 
Quote:
Originally Posted by BioZeke View Post
Do you have the SLI cable linking the two cards together? Do you have power connectors running to the cards?
Yes to both questions xD. Only I'm using a crossfire cable and not an SLI cable.
post #4 of 24
Ok, check the easy stuff first. Make sure the PCI Express cables are inserted. Try reseating the cards, if they aren't all the way in, the fingers won't make contact and it won't give a display. If that still doesn't work, try each card individually. If one card will give display and the other won't, you've got a bad card.
    
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post #5 of 24
Quote:
Originally Posted by Moheevi_chess View Post
Yes to both questions xD. Only I'm using a crossfire cable and not an SLI cable.
Have you tried to plug the monitor to the onboard video and go into BIOS to select the 6870 as primary?

Also, do not put both cards in at the same time. Try each by itself at PCIe x16.
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ケンジ
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post #6 of 24
make sure you have the monitor cable inserted into the primary video-out connector for you cards. i had the same problem with mine before i reconnected the cable to a different dvi port.
post #7 of 24
Some MOBOs won't boot if you make a major hardware change until you reset it. Once you've installed your cards switch off the PSU power and unplug the power chord. Once you've let it power down hook it back up and see if it boots.

EDIT: If it still doesn't boot do a CMOS reset with the jumper. If you still get nothing try 1 card at a time in different slots starting with the primary PCIe, as others have suggested.
Edited by adrift02 - 11/4/11 at 11:49am
post #8 of 24
Thread Starter 
Okay, so I have tried both cards in the PCIe slot and both give me video. I am now trying to install the driver and am getting errors. This is the driver I downloaded. It goes through the install and completes but says I have warnings. The report shows the warning is: Driver not installed.

I deleted the ATI folder on the C drive and tried again. Same thing. It won't let me uninstall the catalyst control center in the Uninstall Programs feature saying it is not a valid windows program. I booted into safe mode and ran driver sweeper again trying to remove all AMD display software. Got the same error when I tried to install again.
post #9 of 24
Quote:
Originally Posted by Moheevi_chess View Post
Okay, so I have tried both cards in the PCIe slot and both give me video. I am now trying to install the driver and am getting errors. This is the driver I downloaded. It goes through the install and completes but says I have warnings. The report shows the warning is: Driver not installed.

I deleted the ATI folder on the C drive and tried again. Same thing. It won't let me uninstall the catalyst control center in the Uninstall Programs feature saying it is not a valid windows program. I booted into safe mode and ran driver sweeper again trying to remove all AMD display software. Got the same error when I tried to install again.
Ignore the error message. Upon restart go to Device Manager, under adapter displays, select update driver then browse to the folder where the install files extracted/unzipped to. Do the same for the other adapter.
ケンジ
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ケンジ
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post #10 of 24
Thread Starter 
Attachment 237376
I don't see my card in the device manager
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