HP Z220 SFF, Z220 CMT, Z420, Z620, and Z820 Workstations Maintenance and Service Guide

Memory
Supported DIMM configurations
NOTE: Mirroring and DIMM sparing are not supported.
Platform Configuration
HP Z220 SFF
●
Four DIMM slots
●
Unbuffered ECC/nECC DIMMS only
●
Maximum capacity: 32 GB
HP Z220 CMT
●
Four DIMM slots
●
Unbuffered ECC/nECC DIMMS only
●
Maximum capacity: 32 GB
HP Z420
●
Eight DIMM slots
●
Unbuffered ECC DIMMS only
●
Maximum capacity: 64 GB
HP Z620
●
Eight DIMM slots (single CPU) or 12 DIMM slots (dual CPU)
●
Unbuffered or registered ECC DIMMS
●
Maximum capacity: 64 GB (single CPU), 96 GB (dual CPU)
●
In dual processor configurations, the workstation can be configured for NUMA or non-NUMA
modes
HP Z820
●
16 DIMM slots
●
Both Unbuffered ECC and Registered DIMMs
●
Maximum capacity: 512 GB
●
In dual processor configurations, the workstation can be configured for NUMA or non-NUMA
modes
98 Chapter 3 Component replacement information and guidelines