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S
S
S
UPER
TORAGE
YSTEM 2028R-ACR24L User's Manual
5-5
Installing Memory
Caution: Exercise extreme care when installing or removing DIMM modules to prevent
any possible damage.
Memory Support
The X10DRH-iT has 16 DIMM slots that can support up to 2 TB of Load Reduced
(LRDIMM) or 1 TB of Registered (RDIMM) ECC DDR4-2400/2133/1866/1600
memory. For best performance, install pairs of memory modules of the same type
and speed. Please refer to our website for any updates to supported memory. All
channels will run at the fastest common frequency.
DIMM Installation
Installing Memory Modules
1. Insert the desired number of DIMMs into the memory slots starting with P1-
DIMMA1. See the Memory Installation Tables on the following pages.
2. Insert each DIMM module vertically into its slot. Pay attention to the notch
along the bottom of the module to avoid installing incorrectly (see Figure 5-3).
3. Use your thumbs to gently press down on both ends of the DIMM module
until it snaps into place in the slot. Repeat for all modules.
4. Press the release tabs to the locked positions to secure the DIMM module
into the slot.
Figure 5-4. DIMM Installation
Release Tab
Socket Key
Release Tab
5-8
Processor & Memory Module Population Configuration
For the memory to work properly, follow the tables below for correct installation.
Processors and their Corresponding Memory Modules
CPU#
Corresponding DIMM Modules
P1-
P1-
P1-
P1-
CPU 1
DIMMA1
DIMMB1
DIMMC1
DIMMD1
P2-
P2-
P2-
P2-
CPU2
DIMME1
DIMMF1
DIMMG1
DIMMH1
Processor and Memory Module Population for Optimal Performance
Number of
CPU and Memory Population Configuration Table
CPUs+DIMMs
(For memory to work properly, please follow this table.)
1 CPU &
CPU1
2 DIMMs
P1-DIMMA1/P1-DIMMB1
1 CPU &
CPU1
4 DIMMs
P1-DIMMA1/P1-DIMMB1, P1-DIMMC1/P1-DIMMD1
CPU1
1 CPU &
P1-DIMMA1/P1-DIMMB1, P1-DIMMC1/P1-DIMMD1 + any pair of P1-DIMMA2/P1-
6 or 8 DIMMs
DIMMB2/P1-DIMMC2/P1-DIMMD2 slots
2 CPUs &
CPU1 + CPU2
4 DIMMs
P1-DIMMA1/P1-DIMMB1, P2-DIMME1/P2-DIMMF1
2 CPUs &
CPU1 + CPU2
6 DIMMs
P1-DIMMA1/P1-DIMMB1/P1-DIMMC1/P1-DIMMD1, P2-DIMME1/P2-DIMMF1
CPU1 + CPU2
2 CPUs &
P1-DIMMA1/P1-DIMMB1/P1-DIMMC1/P1-DIMMD1, P2-DIMME1/P2-DIMMF1/P2-
8 DIMMs
DIMMG1/P2-DIMMH1
CPU1/CPU2
2 CPUs &
P1-DIMMA1/P1-DIMMB1/P1-DIMMC1/P1-DIMMD1, P2-DIMME1/P2-DIMMF1/P2-
10~16 DIMMs
DIMMG1/P2-DIMMH1 + any pair of P1, P2 DIMM slots
CPU1/CPU2
2 CPUs &
P1-DIMMA1/P1-DIMMB1/P1-DIMMC1/P1-DIMMD1, P2-DIMME1/P2-DIMMF1/P2-DIM-
16 DIMMs
MG1/P2-DIMMH1,P1-DIMMA2/P1-DIMMB2/P1-DIMMC2/P1-DIMMD2, P2-DIMME2/
P2-DIMMF2/P2-DIMMG2/P2-DIMMH2
Note: see layout diagrams on following page, which display the order of populat-
ing DIMMs.
5-9
Chapter 5: Advanced Serverboard Setup
P1-
P1-
P1-
P1-
DIMMA2
DIMMB2
DIMMC2
DIMMD2
P2-
P2-
P2-
P2-
DIMME2
DIMM F2
DIMMG2
DIMMH2
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