- Sapphire Radeon HD 5570
- Intel DP55SB (P55 chipset mobo)
The motherboard is capable of PCIe x16 or x8/x8. Due to a strange case layout, I need to run the card in the second (x8) PCIe slot.
In the first (x16) slot the card behaves normally and will FurMark all day long.
In the second (x8) slot, the card works as a standard VGA adapter, but if the Catalyst drivers are installed I get a blank screen when Win 7 64 should present the login screen.
I have tried Catalyst 10.10, 10.10e, and 10.12.
Has anyone seen this before? I am sort of at a loss. I don't blame the mobo because POST and Win 7 boot screens are displayed in all circumstances. The video card is solid. I think this is a driver problem.
TIA
- Intel DP55SB (P55 chipset mobo)
The motherboard is capable of PCIe x16 or x8/x8. Due to a strange case layout, I need to run the card in the second (x8) PCIe slot.
In the first (x16) slot the card behaves normally and will FurMark all day long.
In the second (x8) slot, the card works as a standard VGA adapter, but if the Catalyst drivers are installed I get a blank screen when Win 7 64 should present the login screen.
I have tried Catalyst 10.10, 10.10e, and 10.12.
Has anyone seen this before? I am sort of at a loss. I don't blame the mobo because POST and Win 7 boot screens are displayed in all circumstances. The video card is solid. I think this is a driver problem.
TIA