Installing A Memory; Dimm Population Rule - Gigabyte E251-U70 User Manual

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3-5-2 Installing a Memory

Before installing a memory module, make sure to turn off the system and unplug the power cord
from the power outlet to prevent damage to the memory module.
Be sure to install DDR4 DIMMs on this motherboard.
Follow these instructions to install the Memory:
1.
Insert the DIMM memory module vertically into the DIMM slot, and push it down.
2.
Close the plastic clip at both edges of the DIMM slots to lock the DIMM module.
3.
Reverse the installation steps when you want to remove the DIMM module.

3-5-3 DIMM Population Rule

Be sure to install DDR4 DIMMs on this motherboard.
• The initial DIMMs installed must be installed in the primary CPU (CPU0) memory slots first.
• When populating DIMMs into a channel, slot numbers having the suffix "0" must be populated first, then
followed by slot numbers having the suffix "1".
• A combination of LRDIMMs and RDIMMs is not allowed in the same channel.
• A combination of non-3DS and 3DS LRDIMMs is not allowed in the same channel.
Ranks Per DIMM
Type
and Data Width
RDIMM
RDIMM
RDIMM
RDIMM
RDIMM 3DS
LRDIMM
LRDIMM 3DS
System Hardware Installation
2
DIMM Capacity (GB)
4Gb*
SRx8
4GB
SRx4
8GB
DRx8
8GB
DRx4
16GB
QRx4
N/A
8Rx4
N/A
QRx4
32GB
QRx4
N/A
8Rx4
N/A
1
DRAM Density
8Gb
16Gb
8GB
16GB
16GB
32GB
16GB
32GB
32GB
64GB
2H-64GB
2H-128GB
4H-128GB
4H-256GB
64GB
128GB
2H-64GB
2H-128GB
4H-128GB
4H-256GB
- 24 -
2
Speed (MT/s); Voltage (V);
Slots per Channel(SPC) and
DIMM per Channel (DPC)
1 Slot Per Channel
1DPC
1.2V
2933

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