Sun Oracle Fire X4440, Service Manual

Page: 71 / 222

Chapter 4 Servicing Motherboard Components 4-7
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DIMMs are populated starting from the outside (away from the CPU) and
working
toward the inside.
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CPUs with only a single pair of DIMMs must have those DIMMs installed in that
CPU’s outside white DIMM slots (6 and 7).
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Only DDR2 800 Mhz, 667Mhz, and 533Mhz DIMMs are supported.
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Each pair of DIMMs must be identical (same manufacturer, size, and speed).
Note – DDR2 DIMM names in Integrated LOM messages are displayed with the full
name, such as /SYS/MB/P0/D7.
4.1.2.2 DDR2 DIMM Fillers
DDR2 DIMM fillers are installed in all unoccupied DIMM sockets. All sockets must
be occupied by either a filler or a DDR2 DIMM. When DDR2 DIMMs are added,
remove the fillers. When DDR2 DIMM are removed, add extra fillers. Always place
fillers in empty sockets.
FIGURE 4-3
Fillers for DDR2 DIMM Slots
4.1.3 Removing DDR2 DIMMs
Caution – Ensure that all power is removed from the server before removing or
installing DDR2 DIMMs. You must disconnect the power cables before performing
this procedure.
1. Review
Section 4.1.2, “DDR2 DIMM Guidelines” on page 4-5
for memory
configuration information.
2. Prepare the server for service.