IBM 8500R - Netfinity - 8681, Hardware Maintenance Manual, Page: 171 / 290

Understanding the Netfinity 8500R
server design
The Netfinity 8500R server incorporates new design
features and components.
In the Netfinity 8500R server design, the system has an
I/O board, an I/O integrated function card (commonly
referred to as an I/O function card), a midplane, a
processor controller board, at least one processor
daughterboard, and at least one memory board. This
modular design improves serviceability and provides for a
compact design.
Note
Refer to the “Start Here” section of this Server Library
for exploded views of the major assemblies in the
server.
I/O board:
The I/O board houses the connectors for
the PCI adapters and primary server boards, and houses
other I/O devices that you can install to expand the
capabilities of the server.
The I/O board contains the connectors for the midplane,
I/O function card, Advanced System Management PCI
adapter, two USB ports, the PCI switch card, twelve
hot-plug PCI adapters, and two voltage regulator modules
(VRMs).
Note
The I/O board is also known as the I/O planar.
See “I/O board component locations” on page 116 for a
layout of the I/O board.
Several features, such as the Wake on LAN feature, are
built into the server I/O board. To enable the Wake on
LAN feature, you must install the appropriate software and
hardware in the server. For complete details, refer to the
documentation that comes with the Ethernet adapter.
I/O function card:
The I/O function card houses the
battery, I/O ports, and other I/O devices that you can install
to expand the capabilities of the server.
The I/O function card contains the connectors for the I/O
board, Advanced System Management PCI adapter,
CD-ROM drive, diskette drive, front panel, keyboard,
mouse, SCSI and other I/O ports, jumpers, battery, and
other devices.
See “I/O function card component locations” on page 120
for a layout of the I/O function card.
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