abit ip35-e incompatibility with xfx 260x

[ziddey]

Dug up the old ip35-e and got an x5460 to play with. It will boot with the 260x, but nothing is displayed (the card works fine in other builds). I tested a 4870 and gt210 and both work fine. Installed Windows and used an x1 riser to attach the 260x as a secondary adapter. Drivers installed fine and it works as it should. Swapped it back to the x16 slot, and again, no display. I found that it actually does boot, and works once the drivers are loaded (except that post and boot are dark).

I'm guessing this is more a vbios issue then? Has anyone heard of option rom incompatibilities? Any ideas how to proceed?

[ziddey]

Update: all good now.

Grabbed an older vbios without uefi from techpowerup and gave it a flash. Rebooted and it's now posting.