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Chapter 3: Installation
3-9
Memory Support
RDIMM•
240-pin Reg. DDR3 ECC 1333/1066/800 MHz memory with support of up •
to 288 GB in 18 slots
Note 1. 240-pin Dual Rank (DR) 16 GB Reg. ECC DDR3 1333/1066/800
MHz memory will support up to 288 GB. Memory speed will be downgraded
to 800 MHz. (Refer to the notes in the following memory tables.)
Note 2. 240-pin Quad Rank (QR) 16 GB Reg. ECC DDR3 1066/800 MHz
memory will support up to 192 GB (with 6 DIMMs max. per CPU). Memory
speed will be downgraded to 800 MHz. (Refer to the notes in the following
memory tables.)
LRDIMM (Load Reduced DIMM, for X8DTU-6F+-LR and 8XDTU-6TF+-LR
•
Only)
LRDIMM DDR3 ECC 1066 MHz memory with support of up 288 GB in 18
•
slots
Warning: For your system memory to work properly, be sure to use
the correct BIOS ROM for your system. For the X8DTU+-6F+, use the
X8DTU+-6F+ BIOS. For the X8DTU+-6F+-LR, use the X8DTU+-6F+-
LR BIOS. For the X8DTU+-6TF+, use the X8DTU+-6TF+ BIOS. For the
X8DTU+-6TF+-LR, use the X8DTU+-6TF+-LR BIOS. To fl ash the BIOS,
refer to http://www.supermicro.com/products/motherboard/QPI/5500/
X8DTN_.cfm?IPMI=Y.
UDIMM
•
Unbuffered ECC/Non-ECC DDR3 1333/1066/800 MHz memory of up to
48 GB memory.
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.