Videocard: Accelero7970 1125/1500MHz
Mainboard: MSI Z68A-GD80[g3]
Memory: 4x4GB 1600MHz 9,9,9,24
Soundcard: Essence ST / AKG K-701
PSU: FSP Gold series 750W
| posts: 839 | Location: EU, CZ, Brno
backup your bios 1st. then check card if it has switch for 2nd bios.
If it does not, stop here and do not flash otherwise you may be asking next: "How do I recover bad flash".
If it has dual bios, flip switch to 2nd position which should not be write protected. Save that bios too and compare on binary level for difference. Maybe 2nd bios may be sufficient for your intention.
Btw, why do you flash? does your card have same amount of memory as new bios states? Are you facing some kind of problem which is promised to be fixed by that bios?