Hello; Try to update the BIOS of your desktop board, you can find the latest version here: http://downloadcenter.intel.com/confirm.aspx?httpDown=http://downloadmirror.intel.com/19658/eng/BGP6710J.86A.1815.EB.EXE〈=eng&Dwnldid=19658&ProductID=3273 This is the express BIOS update method, you can run the exe, file when you are within the operating system. Once you update the BIOS, try the ATI video card again, if the problem continues, contact the video card manufacturer for a firmware update
Thanks for the reply
I updated the bios using the intel desktop software. It checked found the new bios and updated the board. After I did that I tried the card again it still didnt work. I then used the jumper to make sure the bios was set at default. Still couldnt get the card to work. I returned the card and got a Nvida GTX 470 popped that in and everything worked perfect. Also when I put my old ATI 3870 video card in it worked perfect as well.
I tried two diferant brands of the ATI 6870 first one I tried was a Asus ATI HD 6870 that one didnt work then I got the Diamond ATI HD 6870 card and that one didnt work. From what I understand Each company uses there own type of bios for there version of that card. Thats why I tried 2 differant brands of the same card.
Does the HD6870 use a aux power connector and was it plugged in ??
The ATI 3870 uses 1 PCIE 6pin plug that card works
The ATI HD 6870 Uses 2 PCIE 6pin plugs that card does not work
The Nivida GTX 470 uses 2 PCIE 6pin plugs and that card works
I used the PCIE card plugs from my power supply. One of the ATI 6870 cards I had came with a normal atx type plug to PCIE card plug adapter and I tried that as well and it didnt work
I'm Not sure that your PSU has enough juice to run two of the HD6870, they require two 75 watt plugs each / thats 4 x 75 watts in crossfirs.
My power supply is 850w thats more then enough if i was going to crossfire. I only had 1 HD 6870 and it wouldnt work. The card i have in there now the Nvida 40 draws way more power then the HD 6870 do
Before installing the HD6870 , did you remove all Nvida drivers , they can't coexsist, on the same machine , I use ATI also and I found the new driver buggy and reverated back to 10.9. CCC.
I'm having the same trouble with an ATI 6950 video card in the PCIe x16 slot. I've got a 750W power supply, both power plugs are attached to the video card and it fails to boot. When I move it to the PCIe x8 slot, it boots up just fine.
I've also confirmed with a known working ATI 4850 and it fails to boot in the x16 slot, but works fine in the x8 slot.
Both of these video cards work in my former system (Intel Desktop Board DP55KG) without a problem.
I've got an old nVidia PCIe card, and it seem to work fine in the x16 slot. So the slot is good, the cards are good, just some incompatibility with the board and ATI video cards installed in the x16 slot. Hopefully this can be resolved with a BIOS update. I'm currently using BIOS version 1815.
So there is no confusion
The computer was all new parts that I put togeather. So there was no operating system installed. It failed to boot the board. I put my old ATI 3870 in and the board booted. I installed windows 7 64 bit updated the boards bios shut down the computer made sure to set the boards bios to default using the jumper pulled out the ATI 3870 popped in the ATI HD 6870 and the board would not boot. I returned the card and got the Diamond ATI HD 6870 same thing board would not boot. I returned that card got a Nvida 470 put that in and the board booted perfectly.