IBM Canada Ltd. Hardware Announcement A08-1364
September 16, 2008
Planned availability – September 16th, 2008
The following are key points to this announcement:
- Lower power for a greener solution
- Greater module densities for memory growth
- Greater chip density
- Lower voltage for lower power draw
- Higher performance for greater throughput
Ove`rview
The new low-power DIMMs for IBM® System xtm memory options help to lower the power costs of the servers by reducing the power draw of the memory and, hence, the overall server power draw. These DIMMs operate at 667 MHz in DDR2 mode with up to 40% power reduction comparing the new 2 GB DIMMs to the previous generation of 2 GB DIMMs.
Low-power fully buffered DIMMs
Fully buffered DIMMs (FBD) enable servers to benefit from their highest possible memory density and bandwidth. Servers equipped with FBDs can get up to 16 GB per channel of total systems memory. This unique memory architecture requires one-third fewer pins than registered DIMMs. They also deliver excellent throughput and low latency. These new low-power 1 GB FBDs offer a combination of outstanding performance with improved thermal characteristics that contribute to a lower total cost of ownership and help ensure long-term IT Investment protection. These new low power 1 GB DIMMs will be available in 1 GB and 2 GB memory capacities.
4 GB Quad Rank Fully Buffered DIMM
This new low-power FBD is the cost-efficient, high-speed memory solution for high-performance blade servers, compute clusters, high-end enterprise servers and telecommunications applications. This DIMM is designed for use in high performance System x server and blade solutions for today's most demanding enterprise applications.
2 GB (2x1GB kit) Single Rank PC2-5300 CL5 ECC Low Power46C74184 GB (2x2GB kit) Dual Rank PC2-5300 CL5 ECC Low Power46C74198 GB (2x4GB kit) Quad Rank PC2-5300 CL5 ECC Low Power 46C74204 GB (2x2GB kit) PC2-6400 ECC DDR2 800 VLP RDIMM 46C0509 Hardware requirements
The announced memory FBDIMMs are supported on the following platforms:
System name HS21______ Machine type 8853/1885
HS21xm____ 7995/1915
x3650_____ 7979/1914
x3550_____ 7978/1913
x3400_____ 7973/7974/7975/7976
x3500_____ 7977/7978
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