The MB820 is an industrial motherboard based on Intel 875P chipset, supporting Socket 478 Pentium 4 processors
This manual covers the MB820 motherboard, which uses a Socket 478 Pentium 4 processor and the Intel 875P chipset. It describes the board’s dimensions, ATX form factor, memory architecture, expansion slots, and integrated interfaces such as LAN, USB, and SATA.
Installation sections guide you through power connections, memory module installation, jumper configuration, and connector usage. The final chapters detail driver installation for audio, LAN, and video components, ensuring the system is ready for operation.
| CPU socket | Socket 478 |
|---|---|
| Supported CPU | Pentium 4 up to 3.2 GHz |
| Chipset | Intel 875P |
| Memory slots | Four DDR sockets, up to 4 GB total |
| Form factor | ATX, 12" × 9.5" |
| Expansion slots | 4 PCI, 2 ISA, 1 AGP8X |
| USB ports | Six USB 2.0 ports |
| SATA connectors | Two Serial ATA connectors |
| LAN controller | Intel 82547GI Gigabit LAN (optional 10/100 MB) |
The board has four DDR memory sockets that can hold up to 4 GB of DDR memory in total.
Insert the supplied CD, then click the Realtek AC97 Codec Audio Drivers entry to start the installation.
The Intel PRO LAN drivers support both Intel PRO/100 and PRO/1000 Ethernet adapters.