I have your ram and your board with F7 except I run 12GB of it and it runs and reads all 12GB fine, however when i first installed all 6 stix I got a dreadfull continuos buzz and an error code thet meant nothing. I played around for an hour brfore i tried only 3 stix in slot 2, 4, & 6 and forced a bios clear then finally got into bios and quickly changed settings to 9,9,9,24,1 and most important 1.6Volt instead of gigabytes default voltage of 1.5 then added all the stix and it's been fine from then on.
However anyone thinking of moving up to F8 bios with the so called PCIx fix this is a joke I run XFX 8800GTX in SLi and any game performance dies in the arse with this bios revision I play COD4 and CODWAW i usually peg the 200 FPS mark (frames per second) on a 26" monitor running 1920 X 1200 the lowest I ever see is 178 FPS but after BIOS F8 I was going into the red battling to push 58FPS, this has to be a joke right???
Does anyone here call that a PCIx enhancement let alone losing USB logitech keyboard access at the drive boot menu " HELLO GIGABYTE IS ANYONE HOME" I emailed them and instead of getting of there ars#s and testing the SLi issue they responded with "We only recommend the upgrading of a bios file if you have problems".
Well i would say that most people have problems with their bios issues relating to getting the ram to configure right let alone when you set the voltage too low by defualt for corsair ram and expect it to boot...