Originally Posted by solnyshok
Please help me with advise on what can be done to fix compatibility issue (if at all possible).
Don't touch anything there.
I would edit 4GB module because it is slower one. In case of bad flash you can (at least other did) to hot plug RAM module when being in BIOS and then do not save and reboot. Or just hot plug in 2 seconds after POST And then flash it back.
What is your chipset?????
and other specs like CPU.