The manual of ASRock M3N78D motherboard
This guide introduces the ASRock M3N78D ATX motherboard, its package contents, and key hardware features such as the AM3 CPU socket, NVIDIA nForce 720D chipset, and dual‑channel DDR3 memory support. Detailed diagrams show the board layout, connector locations, and rear‑panel I/O.
Installation steps cover CPU and memory installation, connecting power and data cables, configuring BIOS settings, and enabling features like Multi‑Streaming audio and powered eSATAII. Safety warnings and overclocking cautions are also included.
| Form Factor | ATX (12.0" x 7.5") |
|---|---|
| CPU Socket | AM3 |
| Supported CPUs | AMD Phenom II X4/X3/X2, Athlon II X4/X3/X2, Sempron |
| Memory Slots | 4 DDR3 DIMM slots (dual‑channel) |
| Maximum Memory | 16 GB |
| Chipset | NVIDIA nForce 720D |
| Audio Codec | VIA VT1718S (7.1‑channel HD Audio) |
| LAN | Gigabit Ethernet 10/100/1000 Mb/s |
| SATA Connectors | 4 × SATAII 3.0 Gb/s (RAID, AHCI, NCQ) |
| BIOS Size | 8 MB AMI BIOS |
It uses an AM3 CPU socket.
The motherboard provides four DDR3 DIMM slots supporting dual‑channel memory.
The board is built around the NVIDIA nForce 720D chipset.