Socket 939

Socket 939 is a PGA socket designed for desktop K8 microprocessors. The socket is primarily used with Athlon 64, Athlon 64 X2 and Athlon FX microprocessors. AMD also manufactured uni-processor single and dual-core Opteron processors for the socket 939, although these processors were just re-branded Athlon 64/64 X2 CPUs with larger level 2 cache. In addition to that small number (compared to the total number of processors for this socket) of socket 939 Sempron processors was produced for this socket.

Picture of Socket 939

The socket can be used with processors with internal frequencies from 1.8 GHz to 3 GHz, or with rated frequencies 3000+ - 4800+. All processors working in this socket have one HyperTransport link, dual-channel DDR memory controller, and support DDR-200 - DDR-400 unbuffered memory DIMMs.

Supported processors

Sempron / Sempron 64 (1.8 GHz - 2 GHz, or 3000+ - 3500+)
Athlon 64 (1.8 GHz - 2.4 GHz, or 3000+ - 4000+)
Athlon 64 X2 (2 GHz - 2.4 GHz, or 3800+ - 4800+)
Athlon 64 FX (FX-53 - FX-60)
Opteron (1.8 GHz - 3 GHz, or model 144 - model 156)
Dual-Core Opteron (1.8 GHz - 2.6 GHz, or model 165 - model 185)

There are no Intel or VIA processors compatible with this socket.

NOTE: Not all processors may be supported by all motherboards. Please see "Upgrading socket 939 motherboards" section below on how to determine what microprocessors can be supported by your motherboard.

Compatible sockets


Compatible package types

939-pin ceramic Pin Grid Array (PGA) package
939-pin organic PGA.

Upgrading socket 939 motherboards

While you can fit any processor in 939-pin ceramic or organic micro-PGA package into your motherboard, not all of them may be supported by the board. To determine what processors are supported you'll need to:

  • Determine manufacturer and model of your motherboard,
  • Search on manufacturer's website for the motherboard model.

To determine upgrade options for brand name computers (like Dell or HP) try to search for computer model on computer manufacturer website.

For upgrade information for ABIT, ASRock, ASUS, DFI, ECS, Gigabyte Technology, Jetway, MSI, PC Chips motherboards please check CPU-Upgrade motherboard database.


Last modified: 10 Mar 2014
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