The ASUS M5A78L-M LX3 Plus is an AMD motherboard for socket AM3+ and AM3 processors, built on the AMD 760G (780L) northbridge with an SB710 southbridge in a Micro ATX layout. This is a pre-owned, tested unit. It supports AMD FX (Zambezi), Phenom II, Athlon II and Sempron 100 series CPUs, dual-channel DDR3 up to 16GB, a PCIe 2.0 x16 slot and four SATA ports.

Older AMD desktops are still common in homes, offices and workshops, and a failed motherboard does not have to mean replacing the whole computer. The ASUS M5A78L-M LX3 Plus lets you keep a compatible AM3+ or AM3 processor, DDR3 memory, drives and Micro ATX case. Qualcomm Atheros gigabit Ethernet and four rear USB ports cover basic connectivity, and the PCIe 2.0 x16 slot accepts a graphics card if needed.
Who is the ASUS M5A78L-M LX3 Plus for?
The ASUS M5A78L-M LX3 Plus suits repairers and home users who need a replacement board for an existing AMD AM3+ or AM3 desktop, as well as anyone maintaining older machines that run legacy software on Windows 7. It makes the most sense when you already own a compatible AMD processor and DDR3 memory that you want to reuse.
ASUS M5A78L-M LX3 Plus key features
- Socket AM3+ and AM3: Supports AMD FX (Zambezi), Phenom II, Athlon II and Sempron 100 series processors, so you can reuse a CPU from an existing AMD system.
- AMD 760G chipset: The AMD 760G (780L) northbridge and SB710 southbridge provide a proven platform for everyday desktop computing on older AMD processors.
- Dual-channel DDR3: Supports dual-channel DDR3 memory up to a maximum of 16GB, which is plenty for office work, browsing and legacy applications.
- PCIe 2.0 x16 slot: One PCIe 2.0 x16 slot lets you add a dedicated graphics card for extra display outputs or better graphics performance.
- SATA storage: Four SATA 3Gb/s ports connect hard drives, SATA SSDs and optical drives, enough for most home and office configurations.
- Gigabit networking: A Qualcomm Atheros gigabit Ethernet controller provides wired network connectivity, with four USB ports on the rear panel.

ASUS M5A78L-M LX3 Plus specifications
| Model | M5A78L-M LX3 PLUS |
|---|---|
| Condition | Used – tested and working |
| CPU support | AMD socket AM3+ / AM3: FX (Zambezi), Phenom II, Athlon II, Sempron 100 series |
| Chipset | AMD 760G (780L) northbridge, SB710 southbridge |
| Memory | Dual-channel DDR3, max 16GB |
| Expansion slots | 1 x PCIe 2.0 x16 |
| Storage | 4 x SATA 3Gb/s |
| LAN | Qualcomm Atheros 1Gb Ethernet |
| Rear USB | 4 x USB ports |
| Operating system | Windows 7, Windows Vista, Windows XP |
| Form factor | Micro ATX, 24.4 x 18.8cm |
Full technical details are available on the official ASUS specifications page. Specifications may vary slightly by region.
What’s in the box
Board only unless otherwise stated; original box and accessories may not be included.
Before you buy
Use an AMD socket AM3+ or AM3 processor and check the ASUS CPU support list for your exact model, as high-wattage FX chips may not be supported. Memory must be DDR3, up to 16GB in total. ASUS lists Windows 7, Vista and XP support, so drivers for later Windows versions may be limited. Confirm your case takes Micro ATX boards.
Browse more products in our ASUS motherboards and motherboards range, or contact us if you need help choosing the right part.
Why buy from The Print Cartridge Shop?
When you buy the ASUS M5A78L-M LX3 Plus from The Print Cartridge Shop you are buying from an Australian online store. Every order is sent with tracking, prices are in Australian dollars and include GST, and a tax invoice is supplied with every order. If you have a question before or after you buy, our team is happy to help by email or through our contact page, which makes us a simple choice for home offices, small businesses, gamers and PC builders.
Frequently asked questions
Which processors work with the ASUS M5A78L-M LX3 Plus?
It supports AMD socket AM3+ and AM3 processors, including FX (Zambezi), Phenom II, Athlon II and Sempron 100 series. Check the ASUS CPU support list for your exact chip.
How much memory does the ASUS M5A78L-M LX3 Plus support?
It supports dual-channel DDR3 memory up to a maximum of 16GB. DDR4 modules will not fit, so use DDR3 desktop memory.
Does the ASUS M5A78L-M LX3 Plus support Windows 10?
ASUS lists Windows 7, Vista and XP as supported operating systems. Later Windows versions may install, but official drivers may not be available.
How long does delivery of the ASUS M5A78L-M LX3 Plus take?
Please allow 7–21 business days for delivery anywhere in Australia. We email a tracking number as soon as your order is dispatched.
Is the ASUS M5A78L-M LX3 Plus a genuine ASUS product?
Yes. It is a genuine ASUS product sourced through our international supplier. Because it is imported stock, warranty support is provided by The Print Cartridge Shop rather than ASUS Australia.
Delivery, warranty and support
We deliver Australia-wide. This item ships from our international supplier, so please allow 7–21 business days for delivery; you will receive a tracking number by email as soon as it is dispatched. The ASUS M5A78L-M LX3 Plus is imported stock and is not covered by the ASUS Australia local warranty. If anything is wrong with your order, contact The Print Cartridge Shop and we will arrange a repair, replacement or refund in line with the Australian Consumer Law. Prices are in Australian dollars and include GST.













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