Socket 940

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Socket 940
Socket 940.png
Type PGA-ZIF
Chip form factors OPGA
Contacts 940
FSB frequency 200 MHz System clock
800/1000 MHz HyperTransport link
Voltage range 0.8 - 1.55 V
Processors AMD Athlon 64 FX
AMD Opteron

This article is part of the CPU socket series

Socket 940 is a 940-pin socket for 64-bit AMD server processors. This socket is entirely square in shape and pins are arranged in a grid with the exception of four key pins used to align the processor and the corners. AMD's Opteron and the older AMD Athlon 64 FX (FX-51) use Socket 940.

Technical specifications[edit]

Microprocessors designed for this socket were intended to be used in a server platform, and as such provide additional features to provide additional robustness. One such feature is only the acceptance of registered memory.[1]

While the more recent 940-pin socket AM2 is visually similar to this one, the two are electrically incompatible due to the integrated memory controller. Socket 940 CPU's integrate a DDR controller, whereas AM2 models utilise a DDR2 controller.[2]

See also[edit]

References[edit]

  1. ^ Kronlund, Doug (2004-06-27). "Socket 940 vs. 939". Short-Media. Retrieved 2007-01-28. 
  2. ^ Bert Töpelt; Daniel Schuhmann, Frank Völkel (2006-05-23). "AM2: AMD Reinvents Itself". Tom's Hardware Guide. Retrieved 2007-01-28. 

External links[edit]