Well you already know that its Memory error. So do some test by yourself. Use only single (one) Memory. Do not connect any other device. See if its giving you display. If its works then check other 3 RAM's one by one.
Also check the BIOS version you are using. If it isn't latest. Flash the latest one.
I Have tried every combination possible with the ram. And I'm not sure how to flash. a new BIOS can you tell me how?
Before flashing the BIOS please let us know the model number for your Intel processor and the exact part number for the memory you are using.