This document is the user manual for the NB73-EA NB73-ES Rev. A+ system board, providing information and instructions for using the product.
This manual provides detailed information for the NB73‑EA and NB73‑ES system boards, including hardware layout, jumper settings, BIOS configuration, supported software, and troubleshooting procedures. It also lists the board’s connectors, expansion slots, and peripheral interfaces.
The document includes safety warnings, a package checklist, and step‑by‑step instructions for installing memory, CPUs, and add‑in cards, as well as guidance on using the Award BIOS utility and configuring the Realtek LAN controller. This manual is written in Chinese.
| Chipset | Intel 845E (Intel 82845E MCH, Intel 82801DB ICH4) |
|---|---|
| CPU Socket | Socket 478 for Pentium 4 processors |
| Maximum CPU Speed | 2.2 GHz |
| System Bus Speed | 400 MHz / 533 MHz |
| Expansion Slots | 1 AGP, 5 PCI (1 shared with CNR), 1 CNR |
| LAN Controller (NB73‑EA only) | Realtek RTL8100 fast Ethernet controller |
It uses a Realtek RTL8100 fast Ethernet controller with 10/100 Mbps support.