6-1
CHAPTER
6
Motherboard Unit Replacement
This chapter explains how to replace the motherboard unit.
■ Section 6.1, “Accessing the Motherboard Unit” on page 6-4
■ Section 6.2, “Removing the Motherboard Unit” on page 6-7
■ Section 6.3, “Mounting the Motherboard Unit” on page 6-8
■ Section 6.4, “Reassembling the Server” on page 6-9
The motherboard unit is a cold replacement component. The server must be
completely powered off, the power cords must be disconnected, and all DIMMs and
PCIe cards must be removed, before the motherboard unit is replaced. See Chapter 7,
Replacement and Installation of Memory and Chapter 8, Replacement and
Installation of PCIe Cards.
Note – There are two types of motherboard units for the M3000 server: the
motherboard unit mounted with the CPU consisting of two-core processors and the
motherboard unit mounted with the CPU consisting of four-core processors. When
replacing a motherboard unit, the replacement unit must contain the same type of
processor. For example, do not replace a motherboard unit that has two-core
processors with one that contains four-core processors.
Note – When replacing the motherboard unit, use the same type of FRU as the FRU
mounted on the previous motherboard unit. If you use a different type of FRU, it
may not work properly.
Note – Do not replace the motherboard unit and the operator panel at the same
time. Otherwise, the system may not operate correctly. Use the showhardconf
command or showstatus command to verify that the replacement unit of the first
replaced FRU is fully operational, before replacing the other FRU.
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