Hi All, I am integrating mass storage drivers. The following steps i have followed. 1. Copied the content of the Windows Server 2003 SP2 media on to a folder on hard drive, c:\temp. 2. Copied the following RAID driver files NODEV.INF, OEMSETUP.INF, PERCSAS.CAT, PERCSAS.SYS, TXTSETUP.OEM to the to the i386 (i.e. C:\temp\i386) 3. Opened the file txtsetup.sif from C:\temp\i386 under Notepad for editing. Added the line: percsas.sys = 1,,,,,,4_,4,1,,,1,4 to the [sourceDisksFiles] section. 4. Added the lines PCI\VEN_1028&DEV_0015&SUBSYS_1F011028 = "percsas" After that i created ISO image and loaded OS on PowerEdge 2900 machine. At the end of the installation there is one restart present to finish the installation. At this point, machine is always autorestarting itself. I entered in safemode by pressing F8, last file loaded before the restart happens is acpitabl.dat. Anybody know what is the problem. Your help is greatly appreciated. Thanks in advance. PCI\VEN_1028&DEV_0015&SUBSYS_1F021028 = "percsas" PCI\VEN_1028&DEV_0015&SUBSYS_1F031028 = "percsas" PCI\VEN_1000&DEV_0060&SUBSYS_1F0A1028 = "percsas" PCI\VEN_1000&DEV_0060&SUBSYS_1F0B1028 = "percsas" PCI\VEN_1000&DEV_0060&SUBSYS_1F0C1028 ="percsas" PCI\VEN_1000&DEV_0060&SUBSYS_1F0D1028 = "percsas" PCI\VEN_1000&DEV_0060&SUBSYS_1F111028 = "percsas" To the [HardwareIdsDatabase] section. 5. Added the line: percsas = percsas.sys,4 to the [sCSI.Load] section. 6. Added the line: percsas = "DELL PERC5 and PERC6/CERC6 RAID Controller Driver (Server 2003 32 bit)" 7. After doing the above steps, created ISO image with modified OS content. I loaded PE2900 machine with this OS media. Machine is always restarting at the end of the installation. In safe mode i checked , after loading acpitabl.dat machine restart is happening. Your help is greatly appreciated. Thanks in advance.