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Socket M (mPGA478MT) is a CPU socket introduced by Intel in 2006.[5] It was used in all Intel Core products, as well as the Core-derived Dual-Core Xeon codenamed Sossaman. It was also used in the first generation of the mobile version of Intel’s Core 2 Duo, specifically, the T5x00 and T7x00 Merom lines (referred to as Napa Refresh), though that line switched to Socket P (Santa Rosa) in 2007.

Technical specifications

Inside of old Sony VAIO laptop (VGN-C140G), showing processor and socket for Socket M

Socket M typically uses the Intel 945PM/945GM chipsets which support up to 667 MHz FSB and the Intel PM965/GM965 which allows 800 MHz FSB support, though the Socket M, PM965/GM965 combination is less common. The “Sossaman” Xeons use the E7520 chipset. Although conflicting information has been published, no 45 nm Penryn processors have been released for Socket M.

Relation to other sockets

Socket M is pin-compatible with the older mobile Socket 479 (mPGA478A) for Pentium III-M processors but is not electrically compatible. Socket M is not pin-compatible with the older desktop Socket 478 (mPGA478B) for Pentium 4 processors or the newer mobile Socket P (mPGA478MN) for later Core processors by location of one pin; it is also incompatible with most versions of the older mobile Socket 479 (mPGA478C), especially those used for Pentium M, which also used an incompatible pin layout.[6][7]

See also

References

  1. ^ “PPGA478 Yonah”. Intel.com.
  2. ^ “PPGA478 Yonah”. Intel.com.
  3. ^ “PPGA478 Merom”. Intel.com.
  4. ^ “PPGA478 Sossaman”. Intel.com.
  5. ^ Smith, Tony (3 Jul 2006). “Intel’s multiple Meroms pin-incompatible – report”. www.theregister.co.uk. Retrieved 2019-02-12.
  6. ^ “Socket 479 (mPGA479M)”. CPU-World. Retrieved 2011-09-24.
  7. ^ “Socket M (mPGA478MT)”. CPU-World. Retrieved 2010-01-16.