For the latest supported memory information, see the QuickSpecs on the HP website
(http://h18000.www1.hp.com/products/quickspecs/ProductBulletin.html). At the website, choose the
geographic region, and then locate the product by name or product category.
Memory configurations
To optimize server availability, the server supports the following AMP modes:
•
Advanced ECC—Provides up to 4-bit error correction and enhanced performance over Lockstep mode.
This mode is the default option for this server.
•
Lockstep—Provides enhanced protection over Advanced ECC mode while continuing to make all
installed memory available to the operating system. The server can continue to function if a single- or
multi-bit memory failure within a single DRAM device occurs.
•
Online spare memory—Provides protection against failing or degraded DIMMs. Certain memory is
reserved as spare, and automatic failover to spare memory occurs when the system detects a DIMM that
is degrading. This feature enables DIMMs that have a higher probability of receiving an uncorrectable
memory error (which results in system downtime) to be removed from operation.
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 (on page 76)."
The server also can operate in Independent Channel Mode or Combined Channel Mode (Lockstep). Lockstep
provides enhanced protection over Advanced ECC mode while continuing to make all installed memory
available to the operating system. The server can continue to function if a single-bit or multi-bit memory failure
within a single DRAM device occurs.
For the latest memory configuration information, see the QuickSpecs on the HP website
(http://www.hp.com).
Intel Gen8 supported memory bandwidth
The following tables show the supported memory for each DIMM type.
Speed, voltage, and capacity
DIMM type
RDIMM
RDIMM
RDIMM
RDIMM
RDIMM
UDIMM
UDIMM
UDIMM
Slot population
DIMM type
RDIMM
DIMM rank
DIMM capacity
Single-rank
4GB
Single-rank
4GB
Dual-rank
8GB
Single-rank
8GB
Dual-rank
16GB
Single-rank
2GB
Dual-rank
4Gb
Dual-rank
8Gb
DIMM rank
16 slots (for max speed)
Single-rank
16
Native speed (MT/s)
1333
1600
1333
1600
1333
1333
1333
1333
24 slots (for max capacity)
24
Hardware options installation 38
Voltage
LV
STD
LV
STD
LV
LV
LV
LV