Apple Workgroup Server 9150/120 - Manual (Page 49)

Expanding memory
Additional random-access memory (RAM) can be installed in your server. The
Technical Information booklet that came with your server describes how much
additional memory can be installed in the server.
Memory for your server is provided in packages called RAM SIMMs. The
SIMMs must be the correct type for your computer. They should be installed
in pairs of the same size into paired slots in your computer. It is very important
that the RAM SIMMs be correctly installed in your Workgroup Server 9150.
Incorrect installation can result in errors, unpredictable results, and damage to
your equipment and data.
Connecting hard disks and other SCSI devices
This section describes how to install SCSI devices in and connect them to the
Workgroup Server 9150. The server has two separate SCSI buses: an internal
bus and an external bus. Each bus accommodates seven SCSI devices; thus,
you can connect a total of 14 SCSI devices to your server. The internal bus
handles the built-in startup hard disk drive, CD-ROM drive, (optional) digital
audio tape (DAT) drive, and up to four additional internal disk drives. The
external bus accommodates up to seven external SCSI devices in a chain (such
as hard disks, CD-ROM drives, scanners, printers, and tape-backup drives).
Setting up a SCSI device to use with your server involves
m setting the device’s SCSI ID number
m physically connecting the device to your server
m installing any necessary device drivers
When setting up a SCSI device to use with your server, refer to the instructions
that came with the device, as well as the instructions in this section.
WARNING To avoid damage to your server, Apple recommends that only
an Apple-certified technician install additional RAM. If you attempt to
install additional RAM yourself, any damage you may cause to your
equipment will not be covered by the limited warranty on your server.
Connecting hard disks and other SCSI devices 33