IBM 866251Y - Netfinity 5500 M20, Hardware Maintenance Manual, Page: 169 / 386

Adapters
You can add adapters to extend the capabilities and power
of the server. Many adapters provide bus-master
capabilities, which enable the adapters to perform
operations without interrupting the server's microprocessor.
You can install up to six adapters in the expansion
connectors, called slots, on the system board of the server.
Five of the slots are peripheral component interconnect
(PCI) expansion slots and one is an industry standard
architecture (ISA) expansion slot.
In four of the PCI slots, you can install a new PCI adapter
or replace an existing PCI adapter with the same type of
adapter without turning off the server power and restarting
the system, if these features are supported by the
operating system. These slots are called
hot-pluggable
PCI slots. They are also referred to as hot-plug PCI slots.
The remaining, non-hot-plug PCI slot supports only a short
adapter.
The expansion slots have Plug and Play capabilities. See
“Plug and Play technology” on page 164 for additional
information.
The server comes with a video controller. This video
controller is an integrated component on the system board.
It is
not in an expansion slot. The integrated video
controller has super video graphics array (SVGA)
technology.
The integrated video controller is not removable. If you
want to disable this controller and use a video adapter
instead, you can install a video adapter in an expansion
slot. When you install a PCI video adapter, the server
BIOS automatically disables the integrated video controller.
When you install an ISA video adapter, you must move a
jumper to disable the integrated video controller. See
“System board jumpers” on page 280 for more information.
Note
Video adapters are not supported in PCI slots on PCI
primary bus 1 (PCI slots 1–4).
The following illustration shows the location of the PCI and
ISA expansion slots on the system board.
Netfinity 5500 M20 - Type 8662
161