ASUS M5A78L Desktop Motherboard AMD Socket AM3 PGA-941 ATX 1 x Processor Support 16GB DDR3 SDRAM Maximum RAM Ultra ATA/133 (ATA-7), Serial ATA/300 Yes Controller Yes 1 x PCIe x16 Slot - 90-MIBFU0-G0EAY00Z

The ASUS M5A78L is an ATX desktop motherboard designed for compatible AMD Socket AM3 processors and DDR3 memory systems. It provides a foundation for building or repairing a desktop computer with support for up to 16GB of DDR3 SDRAM, Ultra ATA/133 and Serial ATA/300 storage interfaces, and a PCIe x16 expansion slot.

Key Features

• ASUS M5A78L ATX desktop motherboard
• AMD Socket AM3 processor support
• Supports up to 16GB DDR3 SDRAM
• Ultra ATA/133 and Serial ATA/300 storage support
• PCIe x16 expansion slot

Product Specifications

• Part Number: 90-MIBFU0-G0EAY00Z
• Manufacturer: ASUS
• Model: M5A78L
• Product Type: Desktop motherboard
• Socket: AMD Socket AM3 PGA-941
• Form Factor: ATX
• Maximum Memory: 16GB DDR3 SDRAM
• Expansion Slot: 1 PCIe x16 slot
• Storage Interfaces: Ultra ATA/133 and Serial ATA/300

Processor Specifications

• Processor socket: AMD Socket AM3
• Socket package: PGA-941
• Processor role: Supports a compatible AMD desktop CPU
• Platform category: Legacy desktop computing
• Configuration requirement: Processor, BIOS, chipset, and cooling must be compatible

Memory Specifications

• Memory technology: DDR3 SDRAM
• Maximum listed capacity: 16GB
• Memory role: System operating memory
• Installation requirement: Use compatible desktop memory modules
• Capacity planning: Actual supported configuration depends on the board and installed modules

Expansion & Storage Specifications

• Expansion interface: One PCIe x16 slot
• Legacy storage: Ultra ATA/133
• Serial storage: Serial ATA/300
• Expansion purpose: Supports compatible graphics, storage, and add-in hardware
• Platform role: Provides central connections for a desktop computer build

Use Cases

• Build a compatible legacy AMD desktop computer
• Replace a failed M5A78L system board
• Restore an older business or home desktop
• Support refurbishment and repair of compatible ATX systems

Compatibility

• AMD Socket AM3 processors
• DDR3 SDRAM desktop memory up to the supported capacity
• ATX-compatible computer cases and power supplies
• Ultra ATA/133 and Serial ATA/300 storage devices
• Confirm processor, BIOS, memory, chassis, power, cooling, and expansion requirements before installation

Frequently Asked Questions

What processor socket does the board use?

The M5A78L uses an AMD Socket AM3 PGA-941 socket.

How much memory can it support?

The listing identifies support for up to 16GB of DDR3 SDRAM.

What form factor is the motherboard?

It uses an ATX desktop motherboard form factor.

What expansion slot is included?

The board includes one PCIe x16 slot.

The ASUS M5A78L provides a practical foundation for restoring or building a compatible AMD desktop system. Its ATX format, Socket AM3 support, DDR3 memory capacity, legacy storage interfaces, and PCIe expansion make it useful for repair shops, refurbishers, and users maintaining older but still serviceable computers.