Pb config with 2*2 DDR dual chan on Asus P4V800D-X

Hello,

First i've a pb when the DDR are plug by pair all it's ok the frequenzy (CPU-Z) = 200 MhZ and Dual is ok, i try the 2 other in the 2 other bank and its ok again. But when i try to use the 4 bank (2blue for same Mem et 2Black for the other Mem) the Dual is ok but the frequenzy go down to 166 the only solution i've found is to modifie the value from Auto to 400MhZ in the Memory config.


Another pb the auto detect of my IDE drive (UDMA5 and UDMA6) give me automaticly only UDMA3 and again only a manip in the bios correct the pb

NB : i've try to update the bios with the last on and the pb are the sames

Best regards Exa