Hi,
anyone has experience with undervolting Asus R9 290x - 4GD5.

It is possible to undervolt with Asus GPU Tweak application, but it seems to me that this program does this only for one card (I have 4 in my rig).

My max. hasrate is 890 khps but cards draw 389W each (total W consumption / [number of 290x cards]).

Anyone has setting for good hasrate with lower consumption?