Socket M
Intel CPU interface
From Wikipedia, the free encyclopedia
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.
| |
| Type | PGA-ZIF |
|---|---|
| Chip form factors | Flip-chip pin grid array |
| Contacts | 478 (not to be confused with the older Socket 478 or the similar Socket 479) |
| FSB frequency | 533 MT/s, 667 MT/s, 800 MT/s |
| Processors |
|
| Predecessor | Socket 479 |
| Successor | Socket P |
This article is part of the CPU socket series | |
Technical specifications
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, especially those used for Pentium M, which also used an incompatible pin layout.[6][7]
