If indeed that CMOS chip, resulting from a BAD BIOS FLASH, is indeed the problem then you'll need to send it back to the MOBO Mfg; they can reprogram & test the MOBO.
However, I would first try to CLEAR your CMOS; pull the power plug AND remove the CMOS battery for ~15 minutes. Otherwise use the the CMOS clear button or Short the CMOS clear contacts on you MOBO. Next, if that fails I would try another PSU or with a DVM {Digital Voltage Meter ~ $30} test the PSU.