1. Installing Internal Optional Devices
Express5800/T120h User’s Guide
84
Chapter 2 Preparations
Checking DIMM
To check out the features of the DIMM, please refer to the label affixed to the DIMM, the following illustrations
and tables.
No.
Description
Meaning
1
Capacity
8GB
16GB
32GB
64GB
2
Rank
1R = Single rank
2R = Dual rank
4R = Quad rank
3
DRAM data width
X4 = 4 bit
X8 = 8 bit
4
Memory generation
DDR4
5
The maximum speed of the
memory
2,133 MT/s
2,400 MT/s
2,666 MT/s
6
CAS latency
P = CAS 15-15-15
T = CAS 17-17-17
U = CAS 20-18-18
V = CAS 19-19-19 (for RDIMM, LRDIMM)
V = CAS 22-19-19 (for 3DS TSVLRDIMM)
7
DIMM type
R = RDIMM (with register)
L = LRDIMM (low loading)
