Socket M
Intel CPU interface
Socket M (mPGA478MT) is a CPU socket introduced by Intel in 2006. 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.
01Technical 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.
02Relation 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.
Sources and credits
This article is adapted from the Wikipedia article “Socket M”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Socket mPGA478MT Socket M.jpg by Sven.petersen, Public domain
- Laptop-intel-core2duo-t5500.jpg by Vitaly Zdanevich, CC0
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