Dear Subscribers: I am running NT 4.0 on a 150 MHz Pentium Pro Server with 128 MB RAM, 1 x 2.1 GB Seagate Fireball ATA Harddisk (Boot Disk), 1 x 6.1 GB Seagate Fireball ATA Harddisk (Exchange Server 5.0 and User Mailbox). We have 120 users accessing this server. The server currently having performance problem and my supplier suggested to upgrade to SCSI Harddisk. Their recommendation - Adaptec Ultra Wide PCI SCSI Host Adapter (AHA-2940UW) with 1 x 9.1 GB Seagate Ultra Wide Harddisk (ST391073W). Is this a good combination ? Thanks for your time and help Jeffrey Loo