I got these 7950s in July last year. They came with 7970 pcb (6+8 pin). I assumed that with improved power circuitry they would have overclocked much better. However, I have only been able to overclock upto 1050/1575 (default voltages), and that too with 12.8 WHQL drivers. With the current 13.2 beta 5, 1025/1575 only. I know they can do much more than that, as people have been doing 1100 core pretty easily. I tried 1075 MHz with 1.25 V (using AB) but it was not stable. So, I am wondering if anyone having the same card is able to overclock higher than that. Some interesting information about my hardware: 1. ASIC quality, GPU1 86.6, GPU2 88.7 2. Idle voltage reported by GPUz (VDDC): ~.8 V 3. Default Core voltage in MSI AB: 1.031 V 4. Max VDDC reported by GPUz (during builtin render test): 1.48V!! (Isnt that a bit high?) 5. Max Temp reached during render test (1050/1575): 78C (also seems to be on the higher side, goes above 80C with furmark). I have already taken apart the heatsink and cleaned/re-applied thermal grease (AS5). 6. The 7950s are sitting inside CM Storm Trooper, 2 slots apart. 2 120 mm fans on the side panel blow directly over them. There are 4 other 120 mm intake fans and 1 140 mm rear exhaust and 1 200 mm top exchaust, so airflow is not an issue. Ambient temp is around 20-21 C. 7. GPU bios: 113-C3861300-X01 8. Currently on 13.2 Beta 5 (Win8 Pro x64) If anyone has some nice tips on how to overlock the gpus higher, I would appreciate it. I am aiming for 1100/1575 at the moment.