Gigabyte Z97X Gaming 7 w/ i7-4790K won't boot - stops at LED diagnostic code 62

rwh

Distinguished
Aug 29, 2009
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18,510
New build, using a Corsair 750 Power Supply, I7-4790k, Coolermaster Case.

If I take both DIMM modules out, the diagnostic led flashed "20" repeatedly.

There is no OS installed, I expected to see BIOS screen when a VGA monitor is connected.
All that happens is I see LED code 62

What should my next steps be?

Right now I just have a USB keyboard connected to the system, and the VGA monitor.