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| Socket 939 | |
|---|---|
| Name | Socket 939 |
| Introduced | 2004 |
| Form factor | PGA |
| Contacts | 939 |
| Supported memory | DDR |
| Predecessor | Socket 754 |
| Successor | Socket AM2 |
Socket 939 Socket 939 was a microprocessor socket introduced by Advanced Micro Devices in 2004 to support its Athlon 64 and related families. It served as a mainstream consumer platform bridging earlier mobile and desktop designs, enabling tighter integration between HyperTransport interconnects and DDR SDRAM memory controllers. Manufacturers including ASUS, Gigabyte Technology, MSI, Foxconn, and Biostar adopted the socket across desktop, enthusiast, and workstation boards.
Socket 939 provided a 939-pin Pin Grid Array interface for AMD processors and was positioned between predecessors like designs used in AMD Athlon 64 mobile derivatives and successors such as platforms compatible with AMD Opteron server lines. OEMs such as Dell, HP, Acer, Lenovo, and Fujitsu integrated Socket 939 solutions into consumer and small business systems. Key industry players including Toshiba, Sony, Samsung, Panasonic, and Hitachi offered components and memory modules used in Socket 939 platforms. The launch intersected with competition from Intel Corporation offerings including Pentium 4 and early Pentium D platforms.
Socket 939 used a 939-pin PGA layout and supported processors with integrated memory controllers communicating with DDR SDRAM modules. Supported front-side and point-to-point links included HyperTransport with varying clock multipliers and voltages managed by motherboard regulators from suppliers like VIA Technologies, NVIDIA, Silicon Integrated Systems, Intel (chipset partners), and Texas Instruments. The socket accommodated processor TDP ranges common to Athlon 64 X2 and single-core Athlon 64 variants, relying on heatsink retention mechanisms standardized by OEMs such as Cooler Master, Thermaltake, Noctua, and Zalman. BIOS and firmware support was provided by vendors like Award Software, Phoenix Technologies, AMI and updated by motherboard makers including ASRock and EVGA.
Compatible processors included mainstream and enthusiast AMD lines: AMD Athlon 64, AMD Athlon 64 X2, and certain AMD Sempron models that were socket-compatible. Variants such as Athlon 64 FX and some early AMD Opteron engineering samples were physically related but typically targeted distinct sockets like Socket 940 or server platforms. The ecosystem encompassed microarchitectures linked to the K8 family and featured support for instruction sets later extended in AMD64 implementations; these CPUs competed with contemporaries like Intel Pentium M derivatives and desktop Celeron D parts.
Motherboards for Socket 939 were built around chipsets from manufacturers including NVIDIA (e.g., nForce series), ATI Technologies (later part of AMD), VIA Technologies, and SiS (Silicon Integrated Systems). Major motherboard vendors such as ASUS, Gigabyte Technology, MSI, Biostar, and Foxconn produced ATX and microATX boards featuring PCI Express expansion lanes, integrated audio from companies like Realtek and Creative Technology, and LAN controllers from Broadcom and Marvell Technology Group. Enthusiast-focused boards offered crossfire support via collaborations between ATI Technologies and board makers, while workstation-oriented models targeted standards embraced by Sun Microsystems-style designs and ISV certification partners.
Socket 939 platforms delivered competitive single-thread and early multithread performance, particularly with the dual-core Athlon 64 X2 family, challenging contemporaneous Intel desktop offerings such as Pentium 4 and early dual-core solutions. The integrated memory controller and HyperTransport connectivity influenced later architectures including AMD K10 and server lines like Opteron. Third-party reviews compared Socket 939 systems to systems using Intel Core microarchitectures, contributing to debates in enthusiast communities involving publications like Tom's Hardware, AnandTech, HardOCP, Maximum PC, and PC Magazine.
The adoption of Socket 939 reflected AMD’s strategy during the mid-2000s to capture desktop and enthusiast segments, competing against Intel Corporation strategies and OEMs such as Dell and HP. Channel partners including Newegg, Micro Center, and distributors in regions served by D&H Distributing and Ingram Micro carried Socket 939 components. The platform’s lifecycle overlapped with major industry events such as semiconductor capacity shifts at foundries like GlobalFoundries predecessors and TSMC processes, and with market responses documented by analysts at Gartner, IDC, and Forrester Research.
Cooling solutions for Socket 939 used retention brackets and heatsink designs from suppliers like Cooler Master, Thermaltake, Noctua, Zalman, and Arctic Cooling to manage TDPs common to Athlon 64 families. Maintenance practices referenced by OEM support pages from ASUS, Gigabyte Technology, MSI, Foxconn, and manual repositories at Intel and AMD emphasized thermal paste application from brands like Arctic Silver and periodic dust removal recommended by consumer electronics groups including Consumer Reports and Which?. End-of-life service and component sourcing often relied on secondary markets facilitated by firms such as eBay sellers and refurbishers like Planet Computers-style resellers.
Category:CPU sockets