SUPER MICRO Computer X8DTU-6F+-LR, X8DTU-6TF+-LR manual 35V DIMMs

Chapter 3: Installation

Memory Support for the Motherboard with the 5600 Processor(s) Installed

•1.5V DIMMs

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

DIMM	DIMMs	DIMM Type	Speeds (in MHz)	Ranks per DIMM
Slots per	Populated	(Reg.=Registered)		(any combination;
Channel	per Channel			SR=Single Rank,
				DR=Dual Rank,
				QR=Quad Rank)
3	1	Reg. DDR3 ECC	800,1066,1333	SR or DR
3	1	Reg. DDR3 ECC	800,1066 (Note 1)	QR
3	2	Reg. DDR3 ECC	800,1066, 1333	Mixing SR, DR
3	2	Reg. DDR3 ECC	800 (Note 2)	Mixing SR, DR, QR
3	3	Reg. DDR3 ECC	800 (Note 2)	Mixing SR, DR

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

Note 2: 1333/1066 MHz RDIMMs will run at 800 MHz (-BIOS automatic downgrading).

Note 3: MIxing of 1.35V and 1.5V DIMMs is not recommended.

1.5V LRDIMM Population for the Motherboard w/5600 Processors

Installed (for X8DTU-6F+-LR and 8XDTU-6TF+-LR Only)

DIMM	DIMMs	DIMM Type	Speeds (in MHz)	Ranks per DIMM (QR=Quad
Slots per	Populated	(LR= Load		Rank, OR=Octal Rank)
Channel	per Channel	Reduced)
3	1	LR DDR3 ECC	1066	QR or OR
3	2	LR DDR3 ECC	1066	QR or OR
3	3	LR DDR3 ECC	1066	QR

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

DIMM	DIMMs	UDIMM (Unb. DIMM/	Speeds (in MHz)	Ranks per DIMM
Slots per	Populated	Unbuffered DIMM)		(any combination;
Channel	per Channel			SR=Single Rank,
				DR=Dual Rank,
				QR=Quad Rank)
3	1	Unb. DDR3 ECC/Non-ECC	800,1066,1333	SR or DR
3	2	Unb. DDR3 ECC/Non-ECC	800,1066, 1333	Mixing SR, DR
3	3	Not Available	Not Available	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

	DIMM	DIMMs	RDIMM (Reg. DIMM/	Speeds (in MHz)	Ranks per DIMM
	Slots per	Populated	Registered DIMM)		(any combination;
	Channel	per Channel			SR=Single Rank,
					DR=Dual Rank,
					QR=Quad Rank)
3		1	Reg. DDR3 ECC	800,1066,1333	SR or DR
3		1	Reg. DDR3 ECC	800 (Note 1)	QR

3-11