HP ProLiant DL580 User Manual page 54

DIMM DIMM rank
type
Single-rank (8 GB) 1600
RDIMM
Dual-rank (16 GB) 1600
RDIMM
LRDIMM Dual-rank (16 GB) 1600
Dual-rank (32 GB) 1600
RDIMM
LRDIMM Quad-rank (32
GB)
LRDIMM Octal-rank (64
GB)
DDR4 memory speeds correlate to mode and channel population.
Performance mode population guidelines
For Performance mode memory configurations, observe the following guidelines:
•
Populate DIMMs according to the DIMM population table for Performance mode
guidelines for Memory
•
DIMMs may be installed individually. HP recommends installing DIMMs in pairs.
Lockstep population guidelines
For Lockstep memory mode configuration, observe the following guidelines:
•
All memory cartridges must be populated identically across all processors.
•
Populate DIMMs according to the DIMM population guidelines for Lockstep mode
guidelines for Memory
•
Lockstep memory bandwidth is reduced approximately in half for DDDC error correction architecture,
compared to Performance mode.
•
Initially, install four DIMMs in 4A, 9B, 1C, and 12D for performance. Thereafter, install DIMMs in pairs
alternating between boards A & B in the following order:
5E, 2G
o
8F, 11H
o
6J, 3L
o
7K, 10M
o
Online Spare memory mode population guidelines
For Online Spare memory mode configuration, observe the following guidelines:
•
Populate DIMMs according to the DIMM population guidelines for Performance or Lockstep memory
modes ("DIMM population guidelines for Memory
•
Each memory channel must have a valid online spare configuration.
1 DIMM 1 DIMM 2 DIMMs
per per per
channel channel (L) channel (P)
(P)
1866 MT/s 1600 MT/s 1866
MT/s
1866 MT/s 1600 MT/s 1866
MT/s
1866 MT/s 1600 MT/s 1866
MT/s
1866 MT/s 1600 MT/s 1866
MT/s
1600 1866 MT/s 1600 MT/s 1866
MT/s
1600 1866 MT/s 1600 MT/s 1866
MT/s
Modes" on page 53).
Modes" on page 53).
2 DIMMs 3 DIMMs
per per
channel channel (P)
(L)
1600 MT/s 1600 MT/s
MT/s
1333 MT/s 1333 MT/s
MT/s
1600 MT/s 1600 MT/s
MT/s
1333 MT/s 1333 MT/s
MT/s
1600 MT/s 1600 MT/s
MT/s
1600 MT/s 1600 MT/s
MT/s
Modes" on page 53).
Hardware options installation 54
3 DIMMs
per
channel (L)
("DIMM population
("DIMM population