give everest a try....it's the only drive bench that i know of that does a low level read/write
just a fair warning though....since it runs a low level bench on the physical volume...DO NOT run the write test on a volume with data on it, as it will erase it
it's a way to test drive "speed" regardless of data on the logical partition
sorry again about the misunderstanding on the mobo....totally my bad for assuming we had the same thing
would be really curious to know what your RAID benches at on Everest....