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Chapter 3: Installation
3-9
Memory Support
The X8DTU-LN4F+ Motherboard supports up to 192 GB* Registered ECC or up
to 48 GB Unbuffered ECC/Non-ECC DDR3 1333 MHz/1066 MHz/800 MHz in 18
DIMMs. (*Refer to Supermicro's memory recommendation list posted on our website
at www.supermicro.com.)
Note: Memory Speed support depends on the type(s) of CPU(s) used.
DIMM Module Population Confi guration
For memory to work properly, follow the tables below for memory installation:
Memory Population for Optimal Performance
-For a Motherboard with One CPU (CPU1) Installed
P1-DIMMs To Populate P1-DIMMs
Branch 0 Branch 1 Branch 2
3 DIMMs P1-1A P1-2A P1-3A
6 DIMMs P1-1A P1-1B P1-2A P1-2B P1-3A P1-3B
9 DIMMs
(RDIMMs only) (Note)
P1-1A P1-1B P1-1C P1-2A P1-2B P1-2C P1-3A P1-3B P1-3C
Note: Max. of 6 UDIMM modules are supported by a CPU.
Memory Population for Optimal Performance
-For a Motherboard with One CPU (CPU2) Installed
P2-DIMMs To Populate P2-DIMMs
Branch 0 Branch 1 Branch 2
3 DIMMs P2-1A P2-2A P2-3A
6 DIMMs P2-1A P2-1B P2-2A P2-2B P2-3A P2-3B
9 DIMMs
(RDIMMs only (Note)
P2-1A P2-1B P2-1C P2-2A P2-2B P2-2C P2-3A P2-3B P2-3C
Note: Max. of 6 UDIMM modules are supported by a CPU.
Memory Population for Optimal Performance
-For a Motherboard with Two CPUs Installed
CPU 1 (To Populate P1-DIMMs) CPU 2 (To Populate P2-DIMMs)
Branch 0 Branch 1 Branch 2 Branch 0 Branch 1 Branch 2
6 DIMMs P1-1A P1-2A P1-3A P2-1A P2-2A P2-3A
12 DIMMs P1-1A/1B P1-2A/2B P1-3A/3B P2-1A/1B P2-2A/2B P2-3A/3B
18 DIMMs
(For RDIMMs only) (Note)
P1-
1A/1B/1C
P1-
2A/2B/2C
P1-
3A/3B/3C
P2-
1A/1B/1C
P2-
2A/2B/2C
P2-
3A/3B/3C
Note: Max. of 6 UDIMM modules are supported by a CPU.