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Product Facts ⏐ Issue: June 01, 2008 ⏐ Product: SPARC
®
Enterprise M5000 Page 25 / 38
Additional Memory Module
Product Overview
SPARC
®
ENTERPRISE M5000 memory module is an expansion memory device consisting of memory DIMMs and a
memory controller equipped on a board that can be plugged to the motherboard. There are 8 GB, 16 GB, and 32 GB
additional memory module types with eight DIMMs each which can be added as a set. Mounting of additional memory
modules must be performed under specific conditions. For details on how to add memory refer to “Conditions for
Mounting Additional Memory”.
Appearance
Memory Module Memory module without a cover
(Memory module: 8 DIMMs are always mounted)
Features
(1) 1 Gbit / 2 Gbit / 4 Gbit DDR2 SDRAM (Double Data Rate Synchronous Dynamic Random Access Memory) is used to
provide high-speed access.
(2) High-density DIMMs (Dual Inline Memory Module) are used to save space on the motherboard.
(3) ECC (Error Checking and Correction) functions provide higher system reliability.
(4) If a single memory chip on a DIMM fails completely, it is handled as a single-bit error. This technique drastically reduces
the number of system shutdowns caused by memory failures.
(5) Memory mirroring function enables continued operation even when an uncorrectable error (multi-bit error) occurs.
(6) When memory failure is detected at initial diagnosis or during OS operation, Block Degradation or Area Degradation
occurs. Because the area to be degraded is designed to be a controllable minimum area, other areas remain intact.
Thus, operation can continue/resume using these areas. This minimizes the effects of failures.
(7) MEM controller patrols memory during normal operation independently from the CPU and OS. This hardware can detect
an error and degrade the area before either the OS or an application is affected. This procedure doesn’t have any effect
on other operations.
M5000 Memory Product ID List
Marketing P/N Option Description
Maximum Number
Supported per System
Comments
SELX2A1U
8GB MR with server memory board and
8x 1GB DIMMs.
Without factory integration!
4 per M4000
8 per M5000
SELY2A1U
8GB MR with server memory board and
8x 1GB DIMMs .
Factory integration only!
4 per M4000
8 per M5000
SELX2B1U
16GB MR with server memory board and
8x 2GB DIMMs.
Without factory integration!
4 per M4000
8 per M5000
SELY2B1U
16GB MR with server memory board and
8x 2GB DIMMs.
Factory integration only!
4 per M4000
8 per M5000
SELX2C1U
32GB MR with server memory board and
8x 4GB DIMMs.
Without factory integration!
4 per M4000
8 per M5000
SELY2C1U
32GB MR with server memory board and
8x 4GB DIMMs.
Factory integration only!
4 per M4000
8 per M5000
Purchase “Factory integration only” modules if you need the memory modules installed and shipped inside the server.
“Without factory integration” means modules are always shipped uninstalled even if they are ordered with the server.