Socket S1 is the CPU socket type used by AMD for their Turion 64, Athlon 64 Mobile, Phenom II Mobile and later Sempron processors, which debuted with the dual-core Turion 64 X2 CPUs on May 17, 2006.

Socket S1
TypePGA-ZIF
Contacts638
FSB frequencyup to 800 MHz HyperTransport
Voltage range?
ProcessorsAthlon 64 X2; Turion 64 X2; Mobile Sempron; Turion 64 (MK series only)
PredecessorSocket 563
Socket 754
SuccessorSocket FS1

This article is part of the CPU socket series

Technical specifications

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AMD Athlon II P320 with Socket S1 layout

Socket S1 is a 638 pin, low profile, ZIF, 1.27mm pitch socket.[1] It replaces the existing Socket 754 in the mobile computing segment (e.g. laptops) as well as the microPGA Socket 563 form factor.

Socket S1 CPUs can include support for dual-channel DDR2 SDRAM, dual-core mobile CPUs, and virtualization technology, and compete with the mobile Intel Core 2 processor series.[2]

Socket S1 revisions

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Different generations of processors used various pinouts of the S1 socket; processors were not necessarily electrically-compatible with each socket even if they fit mechanically.

  • Socket S1g1 or just S1
    • Platforms: Kite and Kite Refresh
    • CPUs: K8 core, HyperTransport 1.0, DDR2 memory
  • Socket S1g2
    • Platforms: Puma and Yukon
    • CPUs: K8 Revision G core, HyperTransport 3.0, DDR2 memory
    • Added:
      • Split-power planes and linked power management support
      • Support for possible low voltage processors
  • Socket S1g3
    • Platforms: Tigris
    • CPUs: K10.5 core, HyperTransport 3.0, DDR2 memory
  • Socket S1g4
    • Platforms: Danube
    • CPUs: K10.5 core, HyperTransport 3.0, DDR3 memory

See also

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References

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  1. ^ "Low-Profile Socket S1 Design Specification" (PDF). amd.com. Retrieved 2009-05-03.
  2. ^ "AMD Turion 64 X2 Dual-Core Mobile Technology Competitive Comparison". amd.com. Retrieved 2009-05-03.
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