M3A78 PRO is an AMD AM2+/AM2 platform motherboard that supports the latest AMD Phenom™ Quad-Core Processor, Dual-Channel DDR2 -1066/800/667 Memory, ASUS Express Gate instant Internet access, AMD Hybrid CrossFireX™ and DX10, and a user friendly Q-Shield design and 4+1 phase power design.
This manual covers the key features of the ASUS M3A78 PRO motherboard, including support for AMD Phenom™ and Athlon™ CPUs, Dual‑Channel DDR2 memory, and the integrated ATI Radeon™ HD 3200 graphics. It also details the ASUS Express Gate, overclocking tools, and power design.
Detailed sections describe the back‑panel I/O, internal connectors, BIOS options, and accessories such as Q‑Connector and HDMI‑to‑DVI converter, helping users install, configure, and troubleshoot the board.
| CPU Socket | AMD Socket AM2+ / AM2 |
|---|---|
| Supported CPUs | AMD Phenom™ FX / Phenom / Athlon™ / Sempron™ |
| Chipset | AMD 780G / SB700 |
| Memory Capacity | Max 8 GB DDR2 (4 DIMM slots) |
| Expansion Slots | 1 PCIe x16, 2 PCIe x1, 3 PCI |
| Integrated GPU | ATI Radeon™ HD 3200 |
| Maximum Shared Memory | 256 MB |
| SATA Ports | 6 × SATA 3 Gb/s (RAID 0,1,10) |
| Audio Codec | Realtek® ALC1200 8‑Channel HD Audio |
| USB Ports | 12 USB 2.0/1.1 ports (4 rear, 8 via connectors) |
The motherboard supports AMD Socket AM2+ and AM2 processors.
It provides six SATA 3 Gb/s ports with RAID 0, 1, and 10 support.
The board includes an integrated ATI Radeon™ HD 3200 GPU.
Up to 8 GB of DDR2 memory can be installed across four DIMM slots.