Thanks guys for this!
Flashed my 290 reference with the elpida mem mod bios, great success!
Gained performance as well as 100mhz more on the mem clock.
Previously on stock bios and pt1t I had performance drop going over 1500 mem and lost display over 1600.
Now I gain performance all the way to 1600, seemingly stable, still losing display over 1600 though....
However, the bios seems to have about 100mV less core voltage than my stock bios and pt1t, need to whack +200mV with trixx to get 1200mhz stable core clock, something which only took +100mV with AB on the previous bioses.
Tried quickly to edit the voltage tables with Hawaii bios reader but no dice, perhaps I screwed up somewhere?
Will try again later.
Anyhow, if we could get a modded version of pt1t it would be great, or a modded 390 bios with all the breaks removed like pt1t, but if it could have 2d clock state to save power it would be great too