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13 ThinkServer Management Module
With the integrated ThinkServer Management Module (also known as the BMC chip), no matter what
condition the server operating system is in and no matter if the server is on or off, as long as the server
is connected to network and an ac power source, the interaction with the TMM controlled servers can be
achieved through system network. The user can obtain the server hardware health information and SEL,
and is able to conduct the operations including turning on or off the server, restarting the server, locking
the power switch on the front panel and so on. This part of the server management is independent of the
operating system and is called out-of-band management.
14 Riser card assembly 1 slot
Used to install the riser card assembly 1.
15 Riser card assembly 2 slot
Used to install the riser card assembly 2.
16 Redundant power supply connector 1
17 Redundant power supply connector 2
Used to connect a hot-swap redundant power supply.
18 Backplane power connector 1
19 Backplane power connector 2
Used to connect the power cable(s) from the backplane.
20 24 26 30 Memory slots
There are 20 memory slots on the system board. For detailed information, see “Memory module installation
rules” on page 80.
22 Microprocessor socket 2
29 Microprocessor socket 1
If the server has two microprocessors, each of the microprocessor is secured in the microprocessor socket
on the system board and a heat sink is installed above the microprocessor to provide cooling. If the server
has only one microprocessor, the microprocessor socket 2 is protected by a microprocessor socket cover.
21 23 25 27 28 31 System fan connectors
Used to connect a system fan.
System board jumpers and switches
This topic provides information about the jumpers and switches on the system board.
Note: Depending on the model, your server might look slightly different from the illustrations in this topic.
A jumper is a short length of conductor used to set up or adjust a printed circuit board, such as the system
board of a computer. A jumper usually is encased in a non-conductive block of plastic for convenient use
44 ThinkServer User Guide