The D830 is a real Dual, though the 6-series were also idenified as pentium D and were not dual.
www.medionsupport.com - the Unofficial Medion hangout, we don't bite
I'd suggest getting hold of the latest Intel INF update and slapping that on, just in case Vista has not fully identified the chipset
http://downloadcenter.intel.com/Deta...16023&lang=eng
The chipset is dual channel, so you need to keep the memory in balanced pairs for optimum performance.
You may be able to access an advanced BIOS using F11 instead of F1, and a password of am8888eg (or egh) - not sure if this was still available on the MD8800, one possibilty may be to take the memory down to 400 clock (2:1 divider) and tighten the timings.
It also appears that it may be able to use the Intel Matrix storage manager for RAID/AHCI.
http://downloadcenter.intel.com/filt...4&submit=Go%21