I bought a SuperMicro X9DRD-iF motherboard about a month ago, and paired it with two E5-2670 v2s and four sticks of Micron MT36JSZF1G72PZ (8GB DDR3 2RX4 PC3-10600R).
When I boot it up (as long as there's a CPU), there's a green light on the motherboard, my fans spin, and the PC is responsive to holding the power button to either turn it on or forcibly turn it off. I don't have any video output however, and the VGA output doesn't give any signal. The same thing happens without any RAM sticks, which should give an error code.
I've tried to reseat some connectors and reinstalling the CPU (I'm not sure if it was the same one that was in that slot, I should probably try my other CPU), but it doesn't seem to do anything.
Am I missing anything? I have the 24 pin ATX, 2x EPS power, power/reset/etc. front panel connectors, internal speaker and fan connectors plugged in. I don't have any (SATA) drives plugged in, and I've tried clearing the CMOS, to no avail. The BIOS as far as I'm aware is updated to a version that supports the E5 v2 series.
Here's the manual, if it helps: https://www.supermicro.com/manuals/motherboard/C606_602/MNL-1488.pdf