Item Description Definition
3 Data width on DRAM
x4 = 4-bit
x8 = 8-bit
x16 = 16-bit
4 Memory generation
PC4 = DDR4
5 Maximum memory speed
2133 MT/s
2400 MT/s
2666 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 TSV LRDIMM)
7 DIMM type
R = RDIMM (registered)
L = LRDIMM (load reduced)
E = Unbuffered ECC (UDIMM)
For more information about product features, specifications, options, configurations, and compatibility, see the
product QuickSpecs on the Hewlett Packard Enterprise website (http://www.hpe.com/info/qs).
Installing a DIMM
Procedure
1. Remove the front bezel on page 39.
2. Power down the server on page 38.
3. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
4. Disconnect all peripheral cables from the server.
5. Do one of the following:
• Server in tower mode: Position the tower server for hardware configuration on page 41.
• Server in rack mode: Extend the server from the rack on page 43.
6. Remove the access panel on page 48.
7. Remove the air baffle on page 50.
8. If you are installing a DIMM for processor 2, and the fan cage is present, remove the fan cage.
9. Open the DIMM slot latches.
10. Align the notch on the bottom edge of the DIMM with the keyed surface of the DIMM slot, and then fully
press the DIMM into the slot until the latches snap back into place.
112 Installing a DIMM
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