Hello to you all, I'm planning to activate the /3GB flag on a Windows server running Oracle Database, in order to extend the memory that can be used by Oracle. The server has the following characteristics: HP Proliant DL380 2 x Pentium Xeon 3,2 GHz 4 GB of RAM HP Smart Array SCSI controller 2x36GB SCSI RAID 1 internal discs with 2 logical drives: C drive for OS D drive for Logs 4x146 GB SCSI RAID 5 internal discs with 1 logical drive: F drive for data Paging size on C drive (2048-4096) SO: Windows 2000 Advanced Server SP4 The Oracle SGA Target is 1336 MB I would like to know if there is any special care that I should take, before I activate this flag on boot.ini. I read the Oracle Documentation, but I didn't found any particular aspect. I'm asking this because I had a bad experience with a test server where with the /3G flag was activated and the Oracle instance didn't startup. I still haven't figured out why. Thanks for all your attention. Best Regards, Ricardo.