GoodRAM PRO, the same (Polish ) brand as Zbogi used for the X6800 frequency WR IIRC . This memory is very good with "normal" voltage, 800 4-4-4-4 @ 1,8V stable, 1000 4-4-4-4 @ 2,225V stable, and 1100 4-4-4-4 even 1M not reachable with any V (2,65V tried). Micron D9GMH but PCB is not that good.
And the subtimings is I believe mostly chipset dependent, not only the memory. In that case 1,85V @ NB in this run to be sure it will be enough .