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14 Intel
®
NetStructure™ MPRTM4808 Rear Transition Board Installation Guide
Installation
3.3.1.4 Removal Procedure
1. Turn off CPU power.
2. Press ejector pin. The ejector pin loosens the CompactFlash disk from the socket.
3. Remove CompactFlash disk from Intel MPRTM4808 board.
4. Turn on CPU power.
3.3.2 Floppy Disk Drive
Note: The board is not hot-swappable if a floppy disk drive is connected to the Intel MPRTM4808 board.
The floppy disk drive connector is a 34-pin 2.54-mm pin-pitch connector. The following connector
pinout shows how the pins are assigned.
3.3.3 Intelligent Peripheral Management Bus (IPMB)
The Intelligent Peripheral Management Bus 1 (IPMB1) can be used to connect, control and
monitor critical components such as power supply units, fans etc. It provides information on the
system inventory, temperature, voltage level, etc.
IPMB1 is routed to CompactPCI connector J5. In addition, the Intel MPRTM4808 board provides
the IPMB1 connector to attach the system management bus via J5. In accordance with PICMG
Specification 2.9, the board uses a Molex 53398-0590 connector.
The following connector pinout shows how the pins are assigned.
Figure 6. Floppy Connector Pinout
Figure 7. IPMB1 Connector Pinout