Hi,

When I use Atitweak -l it only lists performancelevel 0 and 1. There is no Performance level 2?

While mining I can use atitweak to change Engine and Memory but have to use Performance level 1 for anything to happen. The same with changing Voltage but the voltage actually never change.

In cgminer it also works to change the Engine clock and the Memory clock and it also says that "Driver reports success..." but the Voltage never changes.

It is the same experience with both the cards
MIS 7970 Lightening & Sapphire Dual-X OC

Any idea what I can do to change the voltage?

Best Regards
Robert