I'm running into two issues with my new build, and they're probably related. First off, system specs:
i5 2500k 3.3GHz @ stock | ASRock p67 Extreme4 (B3) | 2x 4GB G.Skill RipJaws PC3 1600 | 2x MSI R6950 Twin Frozr III 2GB @ stock | OCZ Agility 3 SSD | OCZ ZX 850w PSU 80+ Gold | Hyper 212+ | LG Flatron w2053 | Win7 x64 | UEFI (bios) v2.0
Issue 1: Display sporadically remains in power saving mode at boot, but machine boots into Windows 7 (confirmed via RDP).
I've been able to replicate this using DVI and DSUB-DVI connections. I can replicate it with both 6950s - both individually and in crossfire. It only happens when the display is connected to the card in the top PCIE slot.
I'm trying to determine if my monitor is starting to go bad, or if my motherboard is borked.
I have been able to resolve this issue by powering off the machine and then turning it back on.
Issue 2: 6950 in top PCIE slot (primary adapter) is running at 4x in Crossfire. Linked adapter runs at 8x.
I haven't been able to get both 6950s to run at 8x/8x in Crossfire. I have updated the motherboard bios, clean install of Win7, fresh install of the latest chipset and Catalyst drivers. I have been unable to find any settings related to PCIE in the ASRock UEFI bios.
When I plug a single 6950 into the top slot, I have been able to get the card to function at x16 according to GPUz 5.5. However, typically, I run into issue 1 after a reboot.
I'm going to the test using a different PSU - but any other suggestions as to what might be causing this? Let me know what other info you need.
i5 2500k 3.3GHz @ stock | ASRock p67 Extreme4 (B3) | 2x 4GB G.Skill RipJaws PC3 1600 | 2x MSI R6950 Twin Frozr III 2GB @ stock | OCZ Agility 3 SSD | OCZ ZX 850w PSU 80+ Gold | Hyper 212+ | LG Flatron w2053 | Win7 x64 | UEFI (bios) v2.0
Issue 1: Display sporadically remains in power saving mode at boot, but machine boots into Windows 7 (confirmed via RDP).
I've been able to replicate this using DVI and DSUB-DVI connections. I can replicate it with both 6950s - both individually and in crossfire. It only happens when the display is connected to the card in the top PCIE slot.
I'm trying to determine if my monitor is starting to go bad, or if my motherboard is borked.
I have been able to resolve this issue by powering off the machine and then turning it back on.
Issue 2: 6950 in top PCIE slot (primary adapter) is running at 4x in Crossfire. Linked adapter runs at 8x.
I haven't been able to get both 6950s to run at 8x/8x in Crossfire. I have updated the motherboard bios, clean install of Win7, fresh install of the latest chipset and Catalyst drivers. I have been unable to find any settings related to PCIE in the ASRock UEFI bios.
When I plug a single 6950 into the top slot, I have been able to get the card to function at x16 according to GPUz 5.5. However, typically, I run into issue 1 after a reboot.
I'm going to the test using a different PSU - but any other suggestions as to what might be causing this? Let me know what other info you need.