SAPPHIRE HD 7970 3GB GDDR5 OC with Boost

[incontrovertible]

Heyas I have a SAPPHIRE HD 7970 3GB GDDR5 OC with Boost which supposedly has a bios switch to activate a more extreme clock/fan profile, however I have no idea where this is or how to do it. The manual doesn't say anything about it and I haven't been able to pull up anything on google.

Any help would be appreciated thanks =]

 

[GreekDude97]

If you haven't figured it out yet, there's a mini-switch on top of your card. If you set it to "2" your Core Clock will be set from 950Mhz to 1000Mhz (or 1Ghz) and your Memory Clock from 1425Mhz to 1450Mhz (5700Mhz Effective to 5800Mhz Effective). You can still overclock it, but you might need to raise the voltage a little bit. Just make sure you reset all your clocks to default before switching to BIOS 2. When it comes to fan profiles, I'm not sure your fans will spin faster with BIOS 2. Just set it to auto and your temps will be normal.