First of all, I was not able to find in our website the BIOS version you tried to install on the board. The latest BIOS available is the 2209 version.
Could you please provide me the current BIOS version?
In the mean time I recommend you to remove the CMOS battery and leave the system without it for about an hour. Then put it back on and restart the system. http://www.intel.com/support/motherboards/desktop/sb/CS-028780.htm?wapkw=clear+cmos+battery#datetime
In regards to the memory issue, could you please provide me both memory model numbers?
The complete bios version is BGP6710J.86A.2209.2012.0717.2302
The memory model is as follows:
Corsair XMS3 DDR3
1600MHZ 4 GB (2X2GB) 9-9-9-24
I tried removing the cmos battery and leaving it out over 1 hour but it did not result in the system recognizing the additional memory. I brought the 8 gig sticks back already so I don't have the model number.
Unfortunately I don't have the previous bios version. I tired one stick at a time and the bios recognized that there was a decrease in ram to 2 gb. I switched the sticks around to the blue DIMM 1 and DIMM 2 slots and it didn't make a difference. I installed the sticks back in DIMM1 and DIMM2 and am back to 4 GB.
My recommendation will be to test the memory on another computer just to make sure the other system reads the memory sizes correctly.
Then, you would need to contact your local Warranty Department so they can help you to replace the unit: http://www.intel.com/p/en_US/support/contactsupport