Icmb (Optional); Jumper Information; Changing Jumper Settings - Intel SR870BN4 - Server Platform - 0 MB RAM Product Manual

ICMB (Optional)

The Intelligent Chassis Management Bus (ICMB) provides external access to Intelligent
Management Bus (IMB) devices that are within the chassis. This makes it possible to externally
access chassis management functions, alert logs, post-mortem data, etc. ICMB also provides a
mechanism for chassis power control. As an option, the server can be configured with an ICMB
adapter board to provide two SEMCONN
ICMB connectors support the connector ID feature. Figure 135 shows the connector at the I/O
board side, while Table 42 provides the pinout information.
Table 42. ICMB Connector Pinout
Pin Signal
1 GND (ground)
2 No connection
3 Tx/Rx+ (differential data line)
4 Tx/Rx- (differential data line)
5 Conn ID+ (differential connector ID line)
6 Conn ID- (differential connector ID line)

Jumper Information

This section provides general information on changing jumper settings as well as specific jumper
configuration for individual boards in the system.

Changing Jumper Settings

To change a jumper setting:
1. Observe the safety and ESD precautions described in "Warnings and Cautions" on page 179.
2. Turn off all connected peripherals.
3. Power down the system by pressing and holding for several seconds the power button on the
front of the chassis. After the server shuts down, unplug both AC power cords to remove
standby power from the server.
4. Open the chassis and access the board with the appropriate jumper. Locate the configuration
jumper blocks on the board. For specific jumper block locations, refer to the remaining
sections in this chapter.
5. Move jumper to pins specified for the required setting. For specific jumper block settings, see
below.
6. Reinstall any boards or components that was removed in order to access jumper blocks.
262
†
6-pin connectors to allow daisy-chained cabling. The
1
6
OM12976
Figure 135. ICMB Connector
Intel® SR870BN4 Server System Product Guide