I initially hooked everything up, in the case. I turned the machine on and got to the BIOS screen. I saw something along the lines of "CMOS checksum bad" and something about the system time being wrong (sorry I can't quite remember, this was a while ago). If I hit the key to enter the BIOS setup, the screen would hold on "WAIT" indefinitely. After a restart I then tried hitting the key to get to the boot menu. This worked, and I was able to select USB drive to boot my Ubuntu installation. This didn't get into the GUI Ubuntu installation though. Instead I saw an error like "error setting up gfxboot". I type help here, which took me to what looked like a text Ubuntu installation menu. I decided to figure out why the graphics weren't working. I had my display running through the graphics card listed above, so I decided to try out the onboard graphics. When I plugged into the on board graphics, the display never came up. And that's where I'm at now. The fans all spin, the power lights on the front of the case come on, but no display and no beep.
Specifically, the CPU power connector is plugged in. I've tried every possible combination of RAM (including none). I plugged in the system speaker, but can't hear anything out of it. (I didn't have the speaker plugged in when the machine was "working" so it's possible the speaker is broken?) I've breadboarded the machine (set it up on top of the motherboard box). I've started it up with nothing connected but the two power connectors, CPU, HSF power and speaker, but get nothing, no beep. I've tried all various RAM combinations with this set up and still get no beeps. I've tried with the graphics card again (multiple times), but still no beep, no display. The fan does spin up on the graphics card though. I've tested my power supply by connecting the green wire to black wire with a paperclip, the power supply fans came on as well as another fan I had connected. I've tried resetting the CMOS by both pulling out the CMOS battery overnight and setting the CMOS reset jumper (I tried these both at different times.)
Unfortunately, I don't have any other parts so I can't test it with known working parts to figure out if something's broken. It seems unlikely to me that both RAM sticks would be dead, so that suggests that either the power supply, CPU or motherboard is broken.
Is there a way I can test the system speaker? I've never heard any beeps out of (like I said, unfortunately I didn't have the speaker plugged in when the machine was POSTing). When I turn on the machine and hold my ear right up the speaker I can hear a very quiet, high pitched tick. It's very short in length. After that I don't hear anything else.
Any thoughts on what might be wrong? Any ideas on how to isolate various components to figure out which (if any) is broken? Right now, I'm leaning towards an issue with the motherboard, since the power supply seems to work (fans spin), it seems unlikely both RAM sticks would be dead, and I'm not sure why the CPU would be dead (and yes, I have reseated it a few times).
I'd appreciate any help or suggestions you have! And thanks for reading my long post!
As a professional with 12 years experience, I'd have to lean towards a mobo that was defective and went kaput after first boot. Get a refund on the board, test a new one. PSU's can be tested with a tester sold at most computer specialty stores, runs about 15 dollars. Make sure all the rails are receiving power and distributing properly. But as I mentioned, sounds like you got a lemon on the mobo.
I got a replacement motherboard in the mail today (the same model I originally ordered) and it works! Notably, I didn't see the errors I mentioned before about the system time being wrong, "CMOS checksum bad", "WAIT" when I went to the BIOS setup, and I had no issues booting my Ubuntu installation media.
Also, there don't seem to be any compatibility issues between the CPU and motherboard. The BIOS setup was able to correctly report the motherboard model, cores, clock speed, etc. So all seems fine on that front!
Thanks for the help! It's a relief that I got this working