Nvidia has nothing to do with intel storage....
Being you have "RAID/SATA" controller ports on the MB.1st,install SATA
hard drives,boot pc to BIOS,select SATA controller be active,"advanced chip
set"enhanced or similiar lets IDE & SATA work together,set boot priority
to SATA/RAID,exit bios,if raid,configure raid set up in menu (runs auto),boot
to xp cd,press F6 option,install floppy when asked,run 2x,exit SATA/RAID
set up,xp takes over from that point.A new OS is a must.
Read owners manual,get floppy drivers from intel Matrix storage,DOS
Also,floppy must be formatted in DOS
It takes some patience,but the screen menu guides you,dont forget,the
hd needs to be formatted before the OS gets installed...
Also,with current hd,set BIOS as outlined,sata hd can run as slave to IDE,
just update chipset software,install windows matrix storage software
Also,intel ICH5 SATA controller runs with older software,matrix is ICH7 & up