Chapter 2 Preparations
1.8.4
Checking DIMM
To check out the features of the DIMM, please refer to the label affixed to the DIMM, the following illustrations
and tables.
Number
1
2
3
4
5
6
7
Description
Capacity
Rank
DRAM data width
Memory generation
The maximum speed of the
memory
CAS latency
DIMM type
Express5800/R120h-1E User's Guide
1. Installing Internal Optional Devices
Meaning
8GB
16GB
32GB
64GB
1R=Single rank
2R=Dual rank
4R=Quad rank
X4=4 bit
X8=8 bit
DDR4
2133 MT/s
2400 MT/s
2666 MT/s
P = CAS 15-15-15
T = CAS 17-17-17
U = CAS 20-18-18
R = RDIMM (with register)
L = LRDIMM (low loading)
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