41
Chapter 3: Maintenance and Component Installation
Notes:
•
For MM, general NM/FM ratio is between 1:4 and 1:16. Excessive capacity for FM can be
used for AD. (NM = Near Memory; FM = Far Memory).
•
For each individual population, rearrangements between channels are allowed as long
as the resulting population is compliant with the PDG rules for the 82xx/62xx/52xx/42xx
platform.
•
For each individual population, use the same DDR4 DIMM in all slots.
•
For each individual population, sockets are normally symmetric with exceptions for one
DCPMM per socket and one DCPMM per node case. Currently, DCPMM modules operate
at 2666 MHz.
DCPMM Population Table (24 Slots) based on the 82xx/62xx/52xx/42xx
Symmetric Population for Each CPU
DCP &
DIMMs
Modes P1/P2-
DIMMF1
P1/P2-
DIMMF2
P1/P2-
DIMME1
P1/P2-
DIMME2
P1/P2-
DIMMD1
P1/P2-
DIMMD2
P1/P2-
DIMMA2
P1/P2-
DIMMA1
P1/P2-
DIMMB2
P1/P2-
DIMMB1
P1/P2-
DIMMC2
P1/P2-
DIMMC1
Channel
Config.
4 DCP
12DIMM
AD
M1
-
M1
-
M1
DCP
DCP
M1
-
M1
-
M1
2-1-1
MM
M2
-
M2
-
M2
DCP
DCP
M2
-
M2
-
M2
2-1-1
AD +
MM
M3
-
M3
-
M3
DCP
DCP
M3
-
M3
-
M3
2-1-1
AD: App Direct, MM: Memory Mode, M1/M2/M3: DRAM (see Legend below)
Asymmetric Population for Each CPU
DCP &
DIMMs
Modes P1/P2-
DIMMF1
P1/P2-
DIMMF2
P1/P2-
DIMME1
P1/P2-
DIMME2
P1/P2-
DIMMD1
P1/P2-
DIMMD2
P1/P2-
DIMMA2
P1/P2-
DIMMA1
P1/P2-
DIMMB2
P1/P2-
DIMMB1
P1/P2-
DIMMC2
P1/P2-
DIMMC1
Channel
Config.
2/1 DCP
12DIMM
AD
M1
-
M1
-
M1
-
DCP
M1
-
M1
-
M1
2/1-1-1
AD*
M1
-
M1
-
M1
-
DCP
M1
-
M1
-
M1
2/1-1-1
*Second socket has no DCPMM
Legend (for the two tables above)
DDR4 Type
Capacity
M1
RDIMM 3DS RDIMM LRDIMM 3DS LRDIMM Any Capacity
M2
RDIMM -
-
-
Refer to Validation Matrix
below.
M3
RDIMM 3DS RDIMM LRDIMM -
Note
: DDR4 single rank x8 is not available for DCP Memory Mode or App-Direct Mode.
Validation Matrix (DDR4 DIMMs Validated with DCPMM)
DIMM Type
Ranks Per DIMM
& Data Width
(Stack)
DIMM Capacity (GB)
DRAM Density
4Gb
8Gb
RDIMM
1Rx4
8GB
16GB
2Rx8
8GB
16GB
2Rx4
16GB
32GB
LRDIMM
4Rx4
N/A
64GB
LRDIMM 3DS
8Rx4 (4H)
N/A
128GB