37
Chapter 3: Maintenance and Component Installation
DDR4 Memory Support for 81xx/61xx/51xx/41xx/31xx Processors
Type
Ranks
Per
DIMM
and
Data
Width
DIMM Capacity (GB)
Speed (MT/s)
One Slot
per Channel
Two Slots
per Channel
DRAM Density
One DIMM
per Channel
One DIMM
per Channel
Two DIMMs
per Channel
4 Gb
8 Gb
1.2 Volts
1.2 Volts
1.2 Volts
RDIMM
SRx4
4 GB
8 GB
2666
2666
2666
SRx8
8 GB
16 GB
DRx8
8 GB
16 GB
DRx4
16 GB
32 GB
RDIMM 3Ds
QRX4
N/A
2H-64GB
8RX4
N/A
4H-128GB
LRDIMM
QRx4
32 GB
64 GB
LRDIMM 3Ds
QRx4
N/A
2H-64GB
8Rx4
N/A
4H-128 GB
DDR4 Memory Support for 82xx/62xx/52xx/42xx/32xx Processors
Type
Ranks
Per
DIMM
and
Data
Width
DIMM Capacity (GB)
Speed (MT/s)
One Slot
per Channel
Two Slots per
Channel
DRAM Density
One DIMM
per Channel
One DIMM
per Channel
Two DIMMs
per Channel
4 Gb 8 Gb
16 Gb
1.2 Volts
1.2 Volts
1.2 Volts
RDIMM
SRx4
4 GB
8 GB
16 GB
2933
2933
2933
SRx8
8 GB
16 GB
32 GB
DRx8
8 GB
16 GB
32 GB
DRx4
16 GB 32 GB
64 GB
RDIMM 3Ds
QRX4
N/A
2H-64GB
2H-128GB
8RX4
N/A
4H-128GB
4H-256GB
LRDIMM
QRx4
32 GB 64 GB
128 GB
LRDIMM 3Ds
QRx4
N/A
2H-64GB
2H-64GB
8Rx4
N/A
4H-128 GB
4H-256 GB
Memory Installation Sequence
Memory modules for the X11 UP/DP/MP motherboards are populated using the "Fill First"
method. The blue memory slot of each channel is considered the "first DIMM module" of
the channel, and the black slot, the second module of the channel. When installing memory
modules, be sure to populate the blue memory slots first and then populate the black slots.
To maximize memory capacity and performance, please populate all DIMM slots on the
motherboard, including all blue slots and black slots.
