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ATX motherboard with black PCB, silver heatsinks, Socket FM2, four DDR3 slots, multiple PCIe and PCI slots, rear I/O panel

MSI

MSI FM2-A85XA-G65 AMD A85X motherboard 64GB DDR3 Socket FM2

SKU CH-P7ZF-WFJFR

Supports AMD A-series processors with dual-channel DDR3 up to 2133 MHz and 64 GB maximum memory

  • CPU Socket TypeSocket FM2
  • CPU TypeAMD A10/A8/A6/A4 series processors supporting Socket FM2 arc
  • ChipsetAMD A85X
  • Memory StandardSupports dual-channel DDR3 2133 (overclocking)/1866/1600/133
  • Maximum Memory Supported64GB
  • PCI Slots2 PCI Express 2.0 x16 slots PCI_E2 support up to PCIe x16 sp
  • Supports up to 64GB dual-channel DDR3 memory
  • AMD A85X chipset with two USB 3.0 I/O ports
  • Realtek ALC892 audio delivers 8.1 channel sound
  • Realtek RTL8111E LAN handles 10/100/1000Mb/s speeds
  • Two PCI Express 2.0 x16 slots for graphics expansion

Socket FM2 AMD A85X platform

This motherboard uses the AMD A85X chipset with a Socket FM2 design for AMD A10, A8, A6 and A4 processors. It supports dual-channel DDR3 memory up to 64GB across speeds from 1066MHz to 2133MHz with overclocking. The ATX layout provides two PCI Express 2.0 x16 slots, three PCI Express 2.0 x1 slots and two legacy PCI slots for expansion cards.

Sustained load behaviour

Under continuous workloads the A85X chipset maintains stable data paths through eight SATA III ports and dual USB 3.0 connections from the chipset itself. Realtek ALC892 audio and RTL8111E gigabit LAN controllers operate independently of the CPU, keeping interrupt latency low during long file transfers or streaming sessions. The board includes a USB 3.0 internal header for front-panel connectivity without sharing bandwidth with rear ports.

SATA III and PCIe 2.0 practical limits

Eight SATA III ports share the chipset's native controller, so simultaneous peak throughput on every port is constrained by the internal bus width. The two PCI Express 2.0 x16 slots run at x16 when only the primary slot is populated and drop to x8 each when both are used. Gigabit LAN is limited to 1000Mb/s by the RTL8111E controller's PCI Express 1.0a link.

Highlights

  • Supports up to 64GB dual-channel DDR3 memory
  • AMD A85X chipset with two USB 3.0 I/O ports
  • Realtek ALC892 audio delivers 8.1 channel sound
  • Realtek RTL8111E LAN handles 10/100/1000Mb/s speeds
  • Two PCI Express 2.0 x16 slots for graphics expansion

Specifications

BrandMSI
SeriesMSI FM2-A85XA-G65
ModelMSI FM2-A85XA-G65
CPU Socket TypeSocket FM2
CPU TypeAMD A10/A8/A6/A4 series processors supporting Socket FM2 architecture
ChipsetAMD A85X
Memory StandardSupports dual-channel DDR3 2133 (overclocking)/1866/1600/1333/1066MHz memory
Maximum Memory Supported64GB
PCI Slots2 PCI Express 2.0 x16 slots
PCI_E2 support up to PCIe x16 speeds (PCI_E5 not installed) or PCIe x8 speeds only (PCI_E5 installed)
3 PCI Express 2.0 x1 slots
2 PCI slots
SATA RAID8XSATA III interface
Audio ChipsetRealtek ALC892 Audio Chip
- 8.1 channel sound effects that support intelligent sound interface detection
Compatible with Azalia 1.0 specifications
LAN ChipsetRealtek PCI-E GbLAN Controller RTL8111E Chip
Supports 10Mb/s, 100Mb/s and 1000Mb/s
Compliant with PCI-Express bus specification v1.0a.
Onboard USBThe AMD A85X chip supports two USB 3.0 I/O ports
The AMD A85X chip supports a USB 3.0 internal port

Questions about this item

How loud and hot does the A85X chipset run under continuous all-day loads?

The A85X chipset is passively cooled by a heatsink and designed for typical desktop thermal limits; the board also includes multiple fan headers so case airflow can keep temperatures in check during extended use.

Which other parts must I already have to get this FM2-A85XA-G65 board running?

You need an AMD A10, A8, A6 or A4 series processor for Socket FM2, DDR3 memory modules up to 64 GB total, an ATX power supply with 24-pin and 4-pin CPU connectors, and a chassis that fits ATX form factor.

Will my older PCI and PCIe 2.0 expansion cards still work alongside this A85X motherboard?

Yes, the board provides two classic PCI slots, three PCIe 2.0 x1 slots and two PCIe 2.0 x16 slots that can run at x8/x8 when both are populated, so legacy add-in cards remain compatible.

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