troubleshooting PC won't post, no display

[JTLSound]

I woke up this morning to no display on my PC. I was working last night just fine.

 

When I boot, the fans spin, lights come on, but there's no display; the monitor doesn't wake up. My keyboard and mouse backlights don't come on either. The first thing I tried was pulling the GPU and network card, and connected the monitor to the iGPU. Same deal. I then removed the RAM, which caused a boot loop. I tried one stick, and it booted and my keyboard backlight came on, but no display, no POST. I tried the other stick alone, and no backlight, no display, no POST. I didn't have time to do anything else before I had to head to work. I don't have any extra gear, so I can't trade out things to test.

 

Any ideas as to what else I can do to test this?

 

Here's my rig: https://pcpartpicker.com/list/HQxZ3F

 

Thanks in advance for any help.

[21rkosta]

reset cmos is always a good idea when you cant think of anything, its worked for me at least once

[JTLSound]

Yeah, that was my next step. This is the first real hardware issue I've ever had.

[SPARTAN VI]

Do you have a buzzer or some such to retrieve beep codes? Doesn't look like the board itself has a built-in speaker or display to show codes. 

[JTLSound]

I do not. 

[JTLSound]

Didn't have a jumper, so I pulled the battery and power from the wall for about a minute. Still no POST from iGPU, one RAM stick in slot 2. Should I try putting my GPU back in? Also, I've unplugged all my storage drives from the motherboard, but they're still getting power. Would pulling their power make a difference?

 

I swapped the RAM sticks I had and now it wakes up the keyboard, but still no display.

[JTLSound]

Last ditch efforts today included pulling all connections from motherboard and power supply, leaving just PSU, CPU, and one RAM stick installed, with motherboard, CPU, and three fans on the power. Pulled the battery and wall socket for 10 minutes, and nothing. Swapped the RAM to another module, it boot-looped once, then stayed on, no post, no display.