The only thing I see missing from your request is a description of the hardware device you are wanting a driver for. Computers/motherboards can require several drivers depending on what on-board hardware they contain and depending on what hardware has been added.
With only vague information posted, this is all I can offer:
This is a list of the on-board hardware:
Audio = Sigmatel Audio for STAC9758 (Via VT8237)
Chipset = VIA K8T800 - VT8237 (Onboard)
CPU = AMD Athlon 64 (Onboard)
LAN = AN983B Fast Ethernet Controller (Onboard)
Fujitsu also provides a Flash Update, Tools and Utilities,