MSI Mpower Z77, boot code A0/A2 hanging

Question

Hello all,
Parts:
MSI Z77 MPower motherboard
Intel i7-3570k
Phanteks TC14 cooler
32GB Corsair Vengeance RAM (I believe it's 1600 speed, it's underneath the cooler so I haven't pulled it yet)
Samsung 840 128GB
MSI GTX650ti
IBM M1015
Nvidia Quadro NVS 420
2xPlextor M5S 120GB
Samsung 850W X-series PSU
APC 750 ES UPS
Lubuntu 14.04
(yes, I used all the display outputs and RAM  )
I've recently have been having issues with my workstation which has been rock stable up to this point.
I experienced some kind of power failure (I'm not sure if it was the UPS, the PSU or something with the board itself). The UPS has had some trouble with its battery but at the time, it didn't seem to be the culprit as there were no beeps at the time. I can't remember if the displays lost power too, but I believe they were hooked up to the non-battery side of the UPS.
I've had two unexplained power failures on this workstation in about a week or two. After the latest power failure, I went to reboot the machine and I got stuck at either A2 or A0 (on the display and LED) and a black screen. I left it for a day or two before I had time to diagnose.
Just today, I pulled the SSD, and I got stuck at A0. I pulled all the cards (I ran the display off the onboard HDMI) and USB off the back (mouse, Sony headset receiver, etc). Any time I rebooted, I got the same A0 code. I have switched BIOSes, no joy. I also cleared the CMOS multiple ways (shorting the coin cell battery holder, as well as holding the button). I do get a message that the CMOS has been reset, but when I try to go into BIOS, it hung for at least a minute before I gave up. I also tried to use the Go2BIOS button, no change. I also in there somewhere tried booting off a USB stick, but seeing as how I couldn't even hit BIOS, I'm not surprised nothing changed.
The OS SSD is fine and runs off my laptop.
I haven't tested the PSU yet nor have I removed the RAM as it's buried under the Phanteks but at this point, I do believe the motherboard is buggered.
At the time of power failures, I hadn't been performing anything odd, just working away. I also haven't changed anything on the machine in a long while, and I haven't reseated the CPU so very doubtful I have bent pin(s).
Any other thoughts before I RMA the board??

Answer 1

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I'm not entirely sure if it's good to have Quadro mixed with GTX series..
Never had a problem actually, it runs an extra 4 2D displays while the GTX650 does the 3D rendering. Works pretty well in fact after the initial setup hurdles.
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Usually A0 code is given out when something's wrong with BIOS. A2 however is the last code I see before it boots (both LED and screen).
Possibly some capacitors died? Did you see through the motherboard?
I will have another look. I pulled the heatsink to get at the RAM and didn't notice anything terribly wrong, but didn't look specifically at the caps, moreso burnt spots on the board (kind of hard with a black PCB!). Double checked just now with the HS mounted the caps I can see. Don't see anything bulging or noticeably amiss.
I did get a response from MSI tech about checking if the primary BIOS was corrupted, going down that road now.