3-64 Sun Fire X4100/X4100 M2 and X4200/X4200 M2 Servers Service Manual • August 2009
3.12.14.2 Installing DIMMs Into a Single-CPU System
Before installing DIMMs into a single-CPU system, ensure they meet the following
requirements:
■ A single-CPU system cannot have DIMMs in the slots next to CPU1.
■ DIMMs must be installed in pairs.
■ The DIMMs in a pair must be identical as follows:
■ Same manufacturer and type.
■ Same number of memory devices.
■ Same amount of memory per device.
■ Same memory speed for all installed DIMMs in system.
■ When only 1 pair of DIMMs must be installed:
■ For Sun Fire X4100/X4200: White slots next to CPU0 (See FIGURE 3-51)
■ For Sun Fire X4100 M2/X4200 M2: Black slots next to CPU0 (See FIGURE 3-52)
For information on determining if your system has one or two CPUs, see Section 3.11,
“HT Jumper Configuration for Single-CPU Servers (Sun Fire X4100 M2 and X4200
M2)” on page 3-13.
4 GB 4 GB 2 GB 2 GB 12 GB
4GB 4GB 0 0 8GB
4 GB 4 GB 4 GB 4 GB 16 GB
TABLE 3-2 Supported DIMM Configurations – Sun Fire X4100 M2/X4200 M2, DDR2 Only
(Continued)
Slot 2 Slot 3 Slot 0 Slot 1
Total Memory Per
CPU
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