Socket M

Socket M (mPGA478MT) is a CPU interface introduced by Intel in 2006 for the Intel Core line of mobile processors.[5]

Socket M
TypePGA-ZIF
Chip form factorsFlip-chip pin grid array
Contacts478 (not to be confused with the previous Socket 479)
FSB frequency533 MT/s, 667 MT/s, 800MT/s
Processors
Intel Core Solo
T1200, T1250, T1300, T1350, T1400, T1500[1]
Intel Core Duo
T2050, T2250, T2300, T2300E, T2330, T2350, T2400, T2450, T2500, T2600, T2700[2]
Intel Core 2 Duo
T5200, T5300, T5500, T5600, T7200, T7400, T7600, T7600G[3]
Intel Pentium Dual-Core
T2060, T2080, T2130
Intel Celeron M
Intel Celeron
1.66 GHz[4]
PredecessorSocket 479
SuccessorSocket P
This article is part of the CPU socket series
Inside of old Sony VAIO laptop (VGN-C140G)

Technical specifications

Socket M is 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. It 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.

Relation to other sockets

Socket M is pin-compatible with desktop socket mPGA478A but it is not electrically compatible.[6] Socket M is not pin-compatible with the older desktop Socket 478 (mPGA478B) or the newer mobile Socket P (mPGA478MN) by location of one pin; it is also incompatible with most[7] versions of the older mobile Socket 479. Pentium III-M processors designed for the first version of Socket 479 will physically fit into a Socket M, but are electrically incompatible with it.[8] Although conflicting information has been published, no 45 nm Penryn processors have been released for Socket M.

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. The version of Socket 479 for Intel Core processors was compatible with Socket M; see "Socket 479 (mPGA479M)". CPU-World. Retrieved 2010-01-16.
  8. "Socket M (mPGA478MT)". CPU-World. Retrieved 2010-01-16.
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