I have just built a new workstation with dual E5-2630v2's on a Supermicro X9DAE motherboard, using 8 x 8Gb Unbufferred ECC RAM, and this is compatible with MB.
I attempted to install dual Nvidia GTX760's - but got no video, and no error codes. No video on POST.
I tried a single GTX 760, no video at all.
I changed to an old NVIDIA Quadro graphics card, and all works well.
When I try one GTX and the Quadro - no video at all including the Quadro
I tried an older GTX 570 by itself, same problem.
All I could think of is some bios problem, but am running the latest bios. The Bios is very flexible and I can reduce PCIe link speed to Gen1 (570 is Gen 2, 760 is Gen3) and set IOU to x4x4x4x4, x4x4x8, x8x4x4, x8x8, and x16 ( I assumed x8x8 was best way forward for dual GTX 760's). I am yet to fins a working combination.
The other common point of failure is PCIE power supply (570 and 760 need 2 x PCIE power supply Quadro doesn't), new Corsair 1050 should have plenty of power, and voltages read OK on voltmeter.
Any clues on this one? Any replies gratefully received. In the meantime I have the machine working fine, just limited to two screens and sloooow video with single Quadro card.
I attempted to install dual Nvidia GTX760's - but got no video, and no error codes. No video on POST.
I tried a single GTX 760, no video at all.
I changed to an old NVIDIA Quadro graphics card, and all works well.
When I try one GTX and the Quadro - no video at all including the Quadro
I tried an older GTX 570 by itself, same problem.
All I could think of is some bios problem, but am running the latest bios. The Bios is very flexible and I can reduce PCIe link speed to Gen1 (570 is Gen 2, 760 is Gen3) and set IOU to x4x4x4x4, x4x4x8, x8x4x4, x8x8, and x16 ( I assumed x8x8 was best way forward for dual GTX 760's). I am yet to fins a working combination.
The other common point of failure is PCIE power supply (570 and 760 need 2 x PCIE power supply Quadro doesn't), new Corsair 1050 should have plenty of power, and voltages read OK on voltmeter.
Any clues on this one? Any replies gratefully received. In the meantime I have the machine working fine, just limited to two screens and sloooow video with single Quadro card.