2 Sata II Benchmarks Problem

hi all .

I have Amd x64 3500 and A8n SLI deluxe from assus , 1.5 GB DDR 400 and X850xt PE and 2 hard SATA II 160GB . problem is i had 2 hards SATA 1 and then i replaced them with the 2 SATA II hards , both Hards were installed in an nvraid array stripe and when i checked the performance after the replacment nothing was changed , coz both benchmarks from sisoftsandra for filesystem benchmarks was giving 92 MB/S ...
is the NVRAID array effecting the SATA II ? maybe doesnt support SATA II ? ( my board support SATA II ) or maybe sata II works as sata II when not installed in an array ? even tho its Stripe ? and the cluster size was set to optimal ...
operating system XP SP2 .
here is a small brief of benchamrks :

SATA 80 + SATA 120 (NVRAID ARRAY stripe ,cluster size = optimal ) = 92mb/s sisoftsandra

SATA II 160 + SATA II 160 (NVRAID ARRAY stripe ,cluster size = optimal ) = 92mb/s sisoftsandra



Peace

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