CHAPTER 2 Hardware Configuration
2.7 MMB (Management Board)
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FIGURE 2.19 Memory Scale-up Board External view
No.
Description
(1)
Top view
(2)
Front view
(3)
Front perspective view
(4)
Right lateral view
The outline of each component making up the Memory Scale-up Board is shown follows.
-
Memory Mezzanine
Memory Mezzanine is a memory expansion board on which two Memory Buffers and 12 DIMM slots are
mounted. Two Memory Mezzanines are mounted for each Memory Scale-up Board.
-
BMC
BMC is an SB management LSI. It is connected to the LPC bus. It communicates with the MMB via the
BMC built-in NIC and exchanges information of the PECI bus (interface to the BIOS) and the GPIO
control.
-
SPI Flash
SPI Flash is the abbreviation of the Serial Peripheral Interface Flash. It is a flash memory to store the
BIOS code (UEFI).
2.7
MMB (Management Board)
The Management Board (MMB) is a control board having a dedicated processor which differs from that on
the SB.
