Girish Mahajan (Editor)

Socket FM2

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Type
  
µPGA-ZIF

Contacts
  
906

Successor
  
AM4

Chip form factors
  
PGA

Predecessor
  
FM2

Socket FM2+ (FM2b) is a CPU socket used by AMD's desktop "Kaveri" APUs (Steamroller-based) and Godavari APUs (Steamroller-based) to connect to the motherboard. The FM2+ has a slightly different pin configuration to Socket FM2 with two additional pin sockets. Socket FM2+ APUs are not compatible with Socket FM2 motherboards due to the aforementioned additional pins. However, socket FM2 APUs such as "Richland" and "Trinity" are compatible with FM2+ socket.

  • ECC DIMMs are supported on Socket FP3 but not supported on the Socket FM2+ package. GDDR5 or HBM memory are not supported.
  • There are 3 PCI Express cores: one 2 x16 core and two 5 x8 cores, for a total of 64 lanes. There are 8 configurable ports, which can be divided into 2 groups:
  • Gfx-group: contains 2 x8 ports. Each port can be limited to lower link widths for applications that require fewer lanes. Additionally, the two ports can be combined to create a single x16 link.
  • GPP-group: contains 1 x4 UMI and 5 General Purpose Ports (GPP).

    • All PCIe links are capable of supporting PCIe 2.x data rates. In addition, the Gfx link is capable of supporting PCIe 3.x data rate.

    For available chipsets consult Fusion controller hubs (FCH).

    Its mobile counterpart is Socket FP3 (BGA-???).

    References

    Socket FM2+ Wikipedia
    (Text) CC BY-SA


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