Big Bang XPower II no longer boots, no video

Question

I'm having issues with my Big Bang XPower II not booting. First, some background information...
For a couple months my computer has been acting strangely. My monitors would randomly go to sleep, and nothing would wake them (mouse movement, keyboard presses, etc.) In addition, my computer would be no longer accessible remotely through RDP, SFTP, Chrome Remote Desktop, etc. Although if I was for example watching a video I could still hear it playing. Note, this happens when the computer is being used, and while sitting idle, even with the monitors off (turn them on and they immediately sleep). The only way to recover from this was to forcibly reboot the computer.
I suspected the graphics card but had no time to test it (I'm in the middle of my last semester of classes for my Computer Science undergrad.) Then a few days ago when this happened and I rebooted the computer per usual I got a message stating "System BIOS detected a non-Windows 8 Logo graphic card. There is no GOP (Graphics Output Protocol) support detected in this card. I reset BIOS settings to default and only changed the things that I needed to adjust to be able to boot, and was able to successfully boot after that. At this point I was pretty sure by graphics card was bad, so I ordered a new one. I got that message one more time, and then last night my monitors went to sleep randomly again but this time when I rebooted I heard one longer beep followed by two shorter beeps, and then nothing. I tried a few times cutting power, rebooting, etc. to no avail. It was late at night and I was getting the new graphics card today so I just left it alone for the night.
Fast forward to now; I installed the new graphics card but I'm still having the same issue. Now I'm thinking it might be the motherboard. So far I've tried disconnecting all USB devices and SATA cables, I've tried all four of my RAM cards one at a time in each of the 8 slots (when they are in the secondary slots the computer never POSTS or beeps or anything just shows "60" on the 7-segment display, when they are in the primary there is no change, still 3 beeps.) I've also tried both the new and old graphics card in each of the PCI-E slots, as well as different PCI-E cables from the PSU. I've tried changing the BIOS switch from A to B and using the Multi-Bios button and I've cleared CMOS for all three BIOSs (I believe they're each a different version.) At this point I'm out of ideas. When the beeps occur the 7-segment reads "d6" if BIOS A is selected or "dE" if BIOS B is selected. Here's two links to videos I took of all the numbers it runs through before showing the temperature:
https://www.opendrive.com/files?91568868_O4Aod
https://www.opendrive.com/files?91569018_usduA
Any help is greatly appreciated. I really need to get this fixed ASAP - it's critical I have the PC to use for my assignments and I don't really have any time to delay. Unfortunately the only other PC I have access to is a 7 year old laptop, so I don't have a ton of parts to swap out with. Also, I haven't yet overclocked this system or anything as I need it to be stable, so there wouldn't be any issues from that. Thanks in advance for your help.
PC Specs:
MSI Big Bang XPower II
G.SKILL Sniper Gaming Series 32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600
Intel Core i7-3820
Gigabyte GeForce GTX 650 Ti / ASUS GeForce GTX750TI-OC-2GD5
Corsair HX850

Answer 1

Quote from: klrman on 24-October-14, 12:12:35
Try to connect the monitor to the board instead of  the card and see how it runs with the integrated graphics of the i7.
Next step to try would be removing 3 sticks of ram and running one stick at a time incase ram is bad.  Look at your motherboard manual which slot to use when running one stick. Don't forget to clear CMOS first.
X79 chipset has no on-board graphics, but as I said I tried installing a brand new card with no difference.
I also mentioned I tried each of my 4 RAM sticks in each of the 8 slots, and I cleared CMOS. I wrote a lot though so I don't blame you for missing that.
Quote from: hpipiw on 24-October-14, 13:13:31
1 long 2 short beeps means VGA card not detected.
Are you using UEFI Win8.1?
This message only shows when you enable windows8/8.1 feature in BIOS (for UEFI OS), and the VGA card do not supports UEFI.
BIOS default should be "windows8/8.1 feature disable", you can check this setting.
Yes, I am using UEFI with Windows 8.1. I've been doing so with that graphics card for over a year, and I cleared CMOS (sucessfully, because I had LEDs turned off and turn on when power is restored enabled, and after clearing CMOS both of those reverted) so the Windows 8/8.1 Feature should be set to disable anyways. Since I have no working video output I have no way of verifying or changing anything.