Has it gotten back to this non-working state without any new modifications on your part? If so, then do you doubt the BIOS clearing and power discharging methods that got it running last time would even work this time; at least enough to salvage your weekend plans?

I guess what I mean is that I assume you'll still have this mobo in the system until you tear it down to put the new one in when it arrives, if it could be convinced to limp along, would you bother trusting any new work to it in the mean time?

Also, did it conk out while you were actively using it (that is to say hard crash and then not come back up), or did it start doing this when trying to boot normally?

Furthermore, with these unexpected hardware issues, are you putting more consideration into an investment in a boot drive? So as to better deal with unexpected needs to rebuild the OS and limit danger to your data? (Unless I somehow missed you getting something other than just those two RED drives.)