Socket 940

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Socket 940

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

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]

References

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

External links

v t e AMD CPU sockets

Desktop sockets	Super Socket 7 Slot A Socket A Socket 754 Socket 939 Socket AM2 Socket AM2+ Socket AM3 Socket AM3+ Socket FM1 Socket FM2 Socket FM2+

Mobile sockets	Socket A Socket 563 Socket 754 Socket S1 Socket FS1

Server sockets	Socket A Socket 940 Socket F Socket F+ Socket G3 (cancelled) Socket G34 Socket C32

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Socket 940

Technical specifications

See also

References

External links