Need some help with this one (m17x r2)

A couple months back I bought another scrap m17x r2 mainly for the good battery it had then left it on the back burner as far as restoring the machine. After the initial problem where the previous owner partially taken it apart (likely to fix or replace the dead gpu) for which I fixed. The issue is even though I rebuilt the machine after a thorough cleaning and installed good ram it crashes on boot up into windows but worse still in the diagnostics test it crashes to a black screen after finishing the optical drive test to a beep. I've tried multiple mxm cards and they all post aside from one faulty m1000m. I have cleared the cmos and ec multiple times.

 

Have you tried just using one stick of RAM at a time? Does it always crash at the same place in the diagnostic test? What is the test after the optical drive? Maybe it's this that's causing the crash.
Do you have another CPU to try?

 

Don't know what is the stage of the test that it crashes on as it immediately crashes and I've tried different sets of ram, I could try swapping the cpu though it is inconvenient to disassemble the whole thing. I am concerned that it is the board given the expense they incur despite their age these days.

 

Finally gotten around to fixing it and runs well now, the issue was the board has an issue with GCN cards failing diagnostics and stalling boot up to windows. The fix was to use a Kepler based quadro and there was no issue with neither the cpu nor the screen which was ruled out through testing. I hope this helps should someone run into this issue though it is rare but does happen.