Installing Adapters
Your server comes with a half-length, SCSI-2 adapter
preinstalled in one of the expansion slots.
– If your server is a disk-array model, this adapter is an IBM
PC ServeRAID Adapter, and it is preinstalled in the bottom
PCI slot (PCI slot 3).
– If your server is a non-disk-array model, this adapter is an
IBM PC Server SCSI-2 Fast/Wide PCI Adapter, and it is
preinstalled in a PCI slot.
– If you are installing an additional PC ServeRAID Adapter,
check the README file on your IBM PC ServeRAID
Configuration Diskette for information regarding what you
need to do.
You can install full-length EISA or ISA adapters in EISA
expansion slots 1–3.
You can install full-length PCI adapters in PCI expansion slots 2
and 3.
You can install half-length EISA and PCI adapters in the
remaining expansion slots.
Your PC Server 520 uses a rotational interrupt technique to
configure PCI adapters. This technique enables you to install a
variety of PCI adapters that currently do not support sharing of
PCI interrupts.
Attention: To avoid possible damage to adapters and server
components, be sure that the adapters you install do not touch each
other or the components (such as the microprocessor) inside the
server. For example, if the adapter that you are installing physically
touches the microprocessor or another component, select a different
expansion slot that can adequately accommodate the adapter.
Chapter 5. Installing Options 183
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