Chapter 2: Installation
2-9
1.5V UDIMM Population for the Motherboard w/5600 Processors Installed
DIMM
Slots per
Channel
DIMMs
Populated
per Channel
DIMM Type (Unb.=
Unbuffered)
Speeds (in MHz)
Ranks per DIMM
(any combination;
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
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
DIMMs
Populated
per Channel
DIMM Type
(Reg.=Registered)
Speeds (in MHz)
Ranks per DIMM
(any combination;
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
2
Reg. DDR3 ECC
800,1066 (Note 2)
Mixing SR, DR
3
2
Reg. DDR3 ECC
800 (Note 3)
Mixing SR, DR, QR
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)
1.35V UDIMM Population for the Motherboard w/5600 Processors Installed
DIMM
Slots per
Channel
DIMMs
Populated
per Channel
DIMM Type (Unb.=
Unbuffered)
Speeds (in MHz)
Ranks per DIMM
(any combination;
SR=Single Rank,
DR=Dual Rank,
QR=Quad Rank)
3
1
Unb. DDR3 ECC
800,1066,1333
SR or DR
3
2
Unb. DDR3 ECC
800,1066
Mixing SR, DR
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
: Memory speed support depends on the type of CPU used.
Note 2
: Due to OS limitations, some operating systems may not show
more than 4 GB of memory. Also, 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 disproportional.
