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Memory configurations

To enhance server availability, the server supports Advanced ECC AMP modes. This mode provides up to 4-bit error correction and enhanced performance over Lockstep mode. This mode is the default option for this server.

Advanced Memory Protection options are configured in RBSU. If the requested AMP mode is not supported by the installed DIMM configuration, the server boots in Advanced ECC mode. For more information, see "HP ROM-Based Setup Utility."

The server can operate in independent channel mode (performance) or combined channel mode (lockstep). Lockstep mode improves the system reliability and availability. If running with RDIMM (built with x4 DRAM devices), the system can survive the complete failure of two DRAM devices (DDDC). Running in independent mode, the server can only survive the complete failure of a single DRAM device (SDDC).

Maximum capacity

DIMM type

DIMM rank

One processor

Two processors

Four processors

RDIMM

Single-rank (4GB)

96 GB

192 GB

384 GB

RDIMM

Single-rank (8 GB)

192 GB

384 GB

768 GB

RDIMM

Dual-rank (16 GB)

384 GB

768 GB

1.5 TB

LRDIMM

Quad-rank (32 GB)

768 GB

1.5 TB

3 TB

For the latest memory configuration information, see the QuickSpecs on the HP website.