Marouane :
Here is the BIOS files for your motherboard: http://www.updrivers.com/bios/Motherboard/Fujitsu-Siemens/D1386-BIOS/9377.html
thank you for the replay i have already find it in fujitsu siemens download center but i have a problem afer run the autoexec.bat in cmd via windows
FLASH Memory Update Utility, V2.27
Copyright (c) 2003 Fujitsu Siemens Computers
D0000_00.OMF : No such file or directory
C:\bios>