Hey my friend I have the same motherboard the AsRock ALiveNF5SLI-1394 can you please send me that bios L1.53, I have DDR2 1066 and an AMD Phenom II X4 980 cpu and there is nowhere else I can get that bios from also how did it work for you?
I understand you had tested with DDRII 800 or 6400... the Athlon 6400 X2 I have runs at 800FSB under PC2 6400 or DDRII 800.
Thank you my friend, mon ami.