I have a network server with WHS2008 SP2 which stores media files etc. In the network I have 4 more pc's which are used to transfer files to and from the home server, which has a RocketRaid 620 2 Sata port 2.0 x1 controller card. From this card I have 2 1TB WD hard discs in Raid1. The controller card is presently in a PCIEX1 slot on the mainboard, and the data transfer speed is around 12-14 mb/sec I have a graphics card in a PCIEX16 slot, so could I move the Raid controller over to the PCIEX16 slot to up the transfer speed. Would it make any difference if it were moved over to a PCIEX16 slot? Also it would mean moving the graphics card to a PCI slot.