SUPER MICRO Computer 1.2b user manual 35V DIMMs

X8DAH+/X8DAH+-F/X8DAH+(-F)-LR User's Manual

1.5V UDIMM Population for the Motherboard w/5600 Processors Installed

DIMM Slots per Channel

3

3

3

DIMMs Populated per Channel

1

2

3

DIMM Type (Unb.=

Unbuffered)

Unb. DDR3 ECC/Non-ECC

Unb. DDR3 ECC/Non-ECC

Not Available

Speeds (in MHz)

800,1066,1333

800,1066, 1333

Not Available

Ranks per DIMM (any combination; SR=Single Rank, DR=Dual Rank, QR=Quad Rank)

SR or DR

Mixing SR, DR

Not Available

Note 1: 1333 MHz for two DIMMs per channel is supported when Unbuf./ECC DIMMs are used.

Note 2: MIxing of 1.35V and 1.5V DIMMs is not recommended.

•1.35V DIMMs

1.35V RDIMM Population for the Motherboard w/5600 Processors

Installed

DIMM Slots per Channel

3

3

3

3

3

DIMMs	DIMM Type
Populated	(Reg.=Registered)
per Channel
1	Reg. DDR3 ECC

1Reg. DDR3 ECC

2Reg. DDR3 ECC

2Reg. DDR3 ECC

3Not Available

Speeds (in MHz)

800,1066,1333

800 (Note 1)

800,1066 (Note 2)

800 (Note 3)

Not Available

Ranks per DIMM (any combination; SR=Single Rank, DR=Dual Rank, QR=Quad Rank)

SR or DR

QR

Mixing SR, DR

Mixing SR, DR, QR

Not Available

Note 1: 1333/1066 MHz QR RDIMMs will run at 800 MHz (-BIOS automatic downgrading).

Note 2: 1333 MHz SR/DR RDIMMs will run at 800 MHz (-BIOS automatic downgrading).

Note 3: 1333/1066 MHz SR/DR/QR RDIMMs will run at 800 MHz (-BIOS automatic downgrading).

Note 4: MIxing of 1.35V and 1.5V DIMMs is not recommended.

1.35V UDIMM Population for the Motherboard w/5600 Processors Installed

DIMM Slots per Channel

3

3

3

DIMMs	DIMM Type (Unb.=
Populated	Unbuffered)
per Channel

1Unb. DDR3 ECC

2Unb. DDR3 ECC

3Not Available

Speeds (in MHz)

800,1066,1333

800,1066

Not Available

Ranks per DIMM (any combination; SR=Single Rank, DR=Dual Rank, QR=Quad Rank)

SR or DR

Mixing SR, DR

Not Available

Note 1: 1333 MHz for two DIMMs per channel is supported when Unbuf./ECC DIMMs are used.

Note 2: MIxing of 1.35V and 1.5V DIMMs is not recommended.

Note 1: Due to OS limitations, some operating systems may not show more than 4 GB of memory.

Note 2: Due to memory allocation to system devices, the amount of memory that remains available for operational use will be reduced when 4 GB of RAM is used. The reduction in memory availability is dispropor- tional. (See the following Table.)

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