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1-6
X8DAH+/X8DAH+-F/X8DAH+(-F)-LR User's Manual
Motherboard Features
CPU
•Two Intel
®
5500/5600 Series (LGA 1366) processors. Each processor supports
two full-width Intel QuickPath Interconnect (QPI) @6.4 GT/s with a total of up to
51.2 GB/s Data Transfer Rate (6.4 GB/s per direction) (See Note 2 on P. 1-3.)
Memory
•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 memory conguration tables in
Chapter 2.)
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 memory
conguration tables in Chapter 2.)
•LRDIMM (Load Reduced DIMM, for X8DAH+-LR and X8DAH+-F-LR Only)
•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 X8DAH+, use the X8DAH+BIOS. For the X8DAH+-LR, use the
X8DAH+-LR BIOS.
For the X8DAH+-F, use the X8DAH+-F BIOS. For the X8DAH+-F-LR, use
the X8DAH+-F-LR BIOS.
To ash the BIOS, refer to http://www.supermicro.com/products/mother-
board/QPI/5500/X8DAH_.cfm?IPMI=Y.
•UDIMM
•Unbuffered ECC/Non-ECC DDR3 1333/1066/800 MHz memory of up to
48 GB memory
Chipset
•Intel 5520 chipset, including: two IOH-36D (I/O Hub)
•One ICH10R (South Bridge)