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DIMM sockets provide more memory

Posted: 26 Feb 2007     Print Version  Bookmark and Share

Keywords:DIMM  sockets  memory  Molex  interface 

Molex Inc. has released a fully buffered DIMM (FB DIMM) socket that provides more memory capacity at higher speeds. Unlike the limited capacity of current shared bus architecture, the FB DIMM channel features a point-to-point serial memory interface that uses a bi-directional serial memory bus to pass data through each memory module to increase storage capacity and speed.

For server apps
As memory data rates increase in current shared bus architecture, the number of memory modules that each bus can support decreases. With a bi-directional serial memory bus, the FB DIMM socket passes data through each memory module instead of loading all of the data onto a single memory bus, said the company. These features make the next-generation FB DIMM socket suitable for server applications found in computing including high-end workstations, blade servers, rack-optimised servers, mainframe servers as well as telecommunication applications including routers and switches.

The 1mm pitch, 240-circuit socket is available in a variety of styles including 28.5° angle, vertical, through-hole and press-fit. It also features high-temperature thermoplastic housing, which makes it Pb-free process compatible.

Correction insertion
The FB DIMM socket features built-in end keys, as well as a central alignment key, which ensures correct insertion of a FB memory module. It also features dual ejector latches for easier insertion and removal of the modules and to minimise micro motion to improve reliability. It also provides three metal forklocks, or plastic pegs, to provide the proper socket-to-PCB alignment and retention during and after soldering the product in place. A latch tower support keeps the module vertical, and its robust contact design enables a long field life suitable for server applications, said the company.

The FB DIMM socket accepts JEDEC-defined module MO-256 and complies with JEDEC SO-003 socket specifications to ensure 100 per cent industry compatibility.

FB DIMM sockets cost approximately Rs.67.98 ($1.50) each in quantities of 300. Lead time is approximately six weeks.

- Gina Roos

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