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{{CPU socket |
{{CPU socket
name = Socket 940 |
|name=Socket 940
image = [[Image:Socket 940.jpg|290px]] |
|image=[[File:Socket 940.png|290px]]
formfactors = [[OPGA]]|
|formfactors=[[OPGA]]
type = [[Pin grid array|PGA]]-[[Zero insertion force|ZIF]] |
|type=[[Pin grid array|PGA]]-[[Zero insertion force|ZIF]]
contacts = 940|
|contacts=940
protocol = |
|protocol=
fsb = 200 MHz System clock <br> 800/1000 MHz [[HyperTransport]] link |
|fsb=200 MHz System clock<br /> 800/1000 MHz [[HyperTransport]] link
voltage = 0.8 - 1.55 V |
|voltage=0.8–1.55 V
processors = [[AMD]] [[Athlon 64|Athlon 64 FX]]<br>[[AMD]] [[Opteron]]
|processors=[[AMD]] [[Athlon 64|Athlon 64 FX]]<br/> [[AMD]] [[Opteron]]
| predecessor= [[Socket A]]
}}
| successor= [[Socket F]]}}
{{Short description|CPU socket for old AMD CPUs}}
'''Socket 940''' is a 940-pin socket for 64-bit [[AMD]] [[Opteron]] server processors and AMD [[Athlon 64|Athlon 64 FX]] consumer processors. It was one of the first sockets designed for AMD's [[AMD64]] range of processors.


'''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|Athlon 64 FX]] ([[FX-51]]) use Socket 940.
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|Athlon 64 FX]] ([[FX-51]]) use Socket 940.


==Technical Specifications==
==Technical specifications==
[[Microprocessor]]'s 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]].<ref>{{cite web|url=http://www.short-media.com/articles/socket_940_vs_939|last=Kronlund|first=Doug|date=2004-06-27|publisher=Short-Media|title=Socket 940 vs. 939|accessdate=2007-01-28}}</ref>
[[Microprocessor]]s 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 the acceptance of only [[registered memory]].<ref>{{cite web|url=http://www.short-media.com/articles/socket_940_vs_939|last=Kronlund|first=Doug|date=2004-06-27|publisher=Short-Media|title=Socket 940 vs. 939|accessdate=2007-01-28}}</ref>


There is a new 940-pin socket called [[Socket AM2|AM2]]. Despite having the same number of pins, Socket 940 and AM2 are not pin-compatible. This means a Socket 940 processor will not fit in an AM2 socket and vice versa. This is because all 64-bit AMD processors integrate the [[memory controller]] the CPU die rather than have a discrete chip on the motherboard.<ref>{{cite web |url=http://www.tomshardware.com/2006/05/23/amd_reinvents_itself/page2.html |title=AM2: AMD Reinvents Itself |accessdate=2007-01-28 |author=Bert Töpelt |coauthors= Daniel Schuhmann, Frank Völkel |date=2006-05-23 |publisher= Tom's Hardware Guide}}</ref>
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 CPUs integrate a [[DDR SDRAM|DDR]] controller, whereas AM2 models use a [[DDR2 SDRAM|DDR2]] controller.<ref>{{cite web|url=http://www.tomshardware.com/reviews/amd-reinvents,1258-21.html|title=AM2: AMD Reinvents Itself|accessdate=2007-01-28|author=Bert Töpelt|author2=Daniel Schuhmann |author3=Frank Völkel |date=2006-05-23|publisher=Tom's Hardware Guide}}</ref>


==See also==
==See also==
* [[List of AMD microprocessors]]
*[[List of AMD microprocessors]]


==References==
==References==
<references />
<references/>


==External links==
==External links==
*[http://www.amd.com/us-en/Processors/ProductInformation/ AMD Product Information]
*[https://web.archive.org/web/20061124025715/http://www.amd.com/us-en/Processors/ProductInformation/ AMD Product Information]
*[http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_739_7203,00.html AMD Technical Details for Athlon64 and Athlon FX]
*[https://web.archive.org/web/20061228193105/http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_739_7203,00.html AMD Technical Details for Athlon64 and Athlon FX]
*[http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/25766.pdf AMD Socket 940 Design Specification]
*[https://web.archive.org/web/20090612015243/http://support.amd.com/us/Processor_TechDocs/25766.pdf AMD Socket 940 Design Specification (rev 3.03)]
*[https://web.archive.org/web/20101214110154/http://support.amd.com/us/Processor_TechDocs/31412.pdf AMD 940 Pin Package Functional Data Sheet (rev 3.05)]


{{amdsock}}
{{amdsock}}


[[Category:CPU sockets]]
[[Category:AMD server sockets]]

[[ar:مقبس 940]]
[[de:Sockel 940]]
[[el:Socket 940]]
[[es:Socket 940]]
[[fr:Socket 940]]
[[it:Socket 940]]
[[ja:Socket 940]]
[[pl:Socket 940]]
[[ru:Socket 940]]
[[fi:Socket 940]]
[[zh-yue:Socket 940]]
[[zh:Socket 940]]

Latest revision as of 02:15, 28 August 2023

Socket 940
TypePGA-ZIF
Chip form factorsOPGA
Contacts940
FSB frequency200 MHz System clock
800/1000 MHz HyperTransport link
Voltage range0.8–1.55 V
ProcessorsAMD Athlon 64 FX
AMD Opteron
PredecessorSocket A
SuccessorSocket F
This article is part of the CPU socket series

Socket 940 is a 940-pin socket for 64-bit AMD Opteron server processors and AMD Athlon 64 FX consumer processors. It was one of the first sockets designed for AMD's AMD64 range of 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 the acceptance of only 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 CPUs integrate a DDR controller, whereas AM2 models use 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.
[edit]
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