I found the way to clock memories on P0 state bios and the card is the most stable on this one. But I have problems with limited voltage - 1.62v is too low for me We are serious, aren't we?
Okay so today my 2x L680 died... private and moa sample, yesterday they were okay, I stopped benching and put them on a shelf (after drying). MOA sample resurrected after owen action, private still dead. Be careful, they seem fragile