This is a PCB diagram of the AMD 520 motherboard, which contains all the interface information of the motherboard.
The Topstar H-NF5AK2 is a desktop motherboard built around the NVIDIA nForce520 chipset. It supports Socket 940 CPUs, DDR2 memory up to 8 GB, multiple PCI‑Express slots, USB 2.0, and integrated HD audio.
This manual covers the motherboard’s features, detailed installation procedures, BIOS configuration, connector descriptions, required tools, and common troubleshooting tips. Safety precautions and power requirements are also included. This manual is written in Chinese.
| Chipset | NVIDIA nForce520 |
|---|---|
| CPU Socket | Socket 940 (Sempron, Athlon/X2/FX/AM2+) |
| Memory Type | DDR2 400/533/667/800 |
| Maximum Memory Capacity | 8 GB |
| PCI‑Express Slots | 1 × PCIe x1, 2 × PCIe x16 |
| DIMM Slots | 4 × DDR2 slots |
| USB Controllers | Integrated USB 2.0 controller (also USB 1.1) |
| IDE Controller | ATA 100/133 IDE controller |
| Audio Codec | Integrated HD Codec |
| Network Interface | 1 × RJ45 Ethernet port |
| Serial Port | 1 × RS‑232 serial port |
| Power Management | ACPI 1.0b, PnP 1.0a, APM 1.2 support |
The manual states that the recommended power source voltage is 220 V.
The board provides four DDR2 DIMM slots and can support up to 8 GB of memory.
It uses the NVIDIA nForce520 chipset.