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Chapter 4 Maintaining the Sun Fire V40z Server 4-53
6. Locate the memory-module connector in which you will install or replace a
memory module.
7. Remove a memory module by pressing down on the ejector bars at both ends of
the memory module’s socket (see
FIGURE 4-31).
8. Ensure that the memory-module socket’s ejector bars are open (rotated outward) to
allow the new module to be inserted.
9. Align the memory module’s edge connector with the alignment key and insert the
memory module into the connector.
Note – Refer to “Memory Module Population Rules” on page 4-49 for important
information about DIMM requirements.
10. Replace the CPU card into the server (see
FIGURE 4-18):
a. Carefully align the rear corners of the CPU card with the plastic alignment
tracks inside the server chassis, then slide the CPU card into the tracks.
b. Press in firmly and evenly on both corners of the CPU card until it engages the
backplane.
c. Lock down the two plastic latches on the corners of the CPU card to secure it in
place.
11. Close the CPU card door.
12. Replace the front bezel onto the server.
4.5.12 CPUs and Heatsinks
Caution – In a two- or four-CPU configuration of the Sun Fire V40z server, all CPUs
must be the same stepping version and the same speed. Before adding or replacing a
CPU, ensure that you have read the information in “No Mixing of CPU Stepping
Versions” on page 4-8.
The Sun Fire V40z server supports two- or four-CPU configurations. In a two-CPU
configuration, you must use the two motherboard positions (CPU0 and CPU1). Four
CPUs are supported with two on the motherboard and two on the CPU card (CPU2
and CPU3). Use the correct procedure in this section:
■ “Replacing a CPU on the Motherboard” on page 4-54
■ “Replacing a CPU on the Optional CPU Card” on page 4-58