Table 27. Memory slot and channel identification (continued)
Controller iMC3 iMC2 iMC0 iMC1
Channel CH1 CH0 CH1 CH0 CH0 CH1 CH0 CH1
Slot No. 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0
DIMM No. 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
• Slot No.: DIMM slot number in each memory channel. Each memory channel has two DIMM slots: slot 0
(further from the processor) and slot 1 (closer to the processor).
• DIMM No.: DIMM slot number on the processor board. Each processor has 16 DIMM slots.
Memory module installation guideline
• For the installation rules and population sequence, see “DDR5 DIMMs installation order” on page 58.
• At least one DIMM is required for each processor. Install at least eight DIMMs per processor for good
performance.
• When you replace a DIMM, the server provides automatic DIMM enablement capability without requiring
you to use the Setup Utility to enable the new DIMM manually.
Chapter 5. Hardware replacement procedures 57
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