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Green Micro ATX motherboard with black sockets and silver heatsinks

ASUS

ASUS F1A55-M LX AMD A55 motherboard Socket FM1 DDR3 32GB

SKU CH-SN48-HYHSP

Micro ATX board with AMD A55 chipset, Socket FM1 and DDR3 support up to 32GB

  • CPU socketSocket FM1
  • ChipsetAMD A55
  • Max supported RAM32 GB
  • Supports up to 32GB DDR3 memory for smooth multitasking
  • AMD A55 chipset provides stable platform performance
  • Socket FM1 compatibility for AMD APU processors
  • Micro ATX form factor fits compact builds
  • Includes SATA cable and I/O shield for quick setup

FM1 platform board

The ASUS F1A55-M LX is a Micro ATX motherboard built around the AMD A55 chipset for Socket FM1 processors. It supports DDR3 memory up to 32GB and provides essential connectivity through SATA ports. The form factor fits compact chassis while retaining standard expansion slots.

Replaces older A55 boards

This unit serves as a direct replacement for a failed or outdated Socket FM1 motherboard using the same chipset. The jump is worth it when an existing system needs a tested board with a fresh CMOS battery and a supplied I/O shield to restore operation quickly.

Suits legacy FM1 rebuilds

The board suits builders maintaining or assembling a legacy FM1 system where DDR3 memory and SATA storage are already on hand. Users requiring newer sockets, higher memory ceilings or modern interfaces should look at current-generation platforms instead.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $44.99
Cheaper than about 93% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Product lineASUS F1A55-M LX
Model nameASUS F1A55-M LX
Processor
CPU socketSocket FM1
ChipsetAMD A55
Memory
Max supported RAM32 GB

Questions about this item

Will the Micro ATX board fit my standard ATX case?

The board uses the Micro ATX form factor, so it mounts in any case with Micro ATX or ATX standoff holes.

What is the first step when installing the board, and what do builders often miss?

Fit the supplied I/O back panel into the case cut-out before lowering the board, then secure all standoffs — missing one risks a short.

Which onboard part will need replacing after a few years of daily use?

The supplied CMOS battery keeps BIOS settings; plan to swap it when the clock starts losing time.

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