Hi guys,
I can't make my MSI 970A-G43 work with 4x Sapphire 7950. I've tried varies of risers 1x-1x and 1x-16x and Windows 7 x64 doesn't see more than 2 GPUs.
I turned all of the unnecessary gear in bios. I am using 1600W PSU. I also tried to change PCI latency, empower the risers and I checked the system with Sempron 145 and Athlon x2 I am using now - nothing has helped, W7 sees only 2 GPUs.
Is it possible to make this mobo work with more than 2 GPUs?
Best regards,
LG
I have that same Motherboard and I haven't been able to get more than 2 GPUs detected in windows.
I should have some time this weekend to use a combination of USB risers, powered risers, shorting pins on PCI-E slot, and multiple configurations to see if it's possible.... I've read somewhere that you need to update to the latest BIOS and enable IOMMU. I have like 5 of these boards, so getting 4 GPUs to work would be very good... Let's both work on it and get it figured out.
-EP