install new scsi harddisk on IBM intellistation z pro

["Zaw Htet" <zawhtet gmail com>]

Hello Everybody
I'm want to replace
Maxtor ATLAS 15 K II
146 GB
15000 RPM
WIDE Ultra 320 SCSI with
new  hitachi  68pins Ultra 3 SCSI disk 147GB harddisk
on IBM intellistation z pro.
When i attach new drive , system not even boot up, but system found
the new drive.
I've try to search the jumber setting but did'nt find any useful info..
So, anyone using IBM intellistation z pro, plz help me out !!!
Ps. that system is using RHEL 3 64bit edition...

Regards;