AOpen AP41, User Manual

Page: 19 / 93

Features
DRAM Sockets
The system board has four 72-pin DRAM sockets that expand system
memory from 1 MB to a maximum of 128 MB. These sockets accept
single- and double-density SIMMs. Chapter 2 tells how to install
memory modules.
Two-Channel PCI Mode 4 IDE
The board utilizes the enhanced-integrated drive electronics (E-IDE)
interface that improves the data transfer rate. It also allows the
system to support four E-IDE devices, including fixed disks with more
than 528-MB capacity. This feature offers users increased data
storage capacity.
Super I/O Controller
The onboard super I/O controller chip supports two UART
16450/16550-compatible serial ports and a parallel port (SPP, EPP,
ECP)
1
. It also accommodates 1.2-/1.44-/2.88-MB disk drives allowing
full-range access to 5.25-inch drives with 360-KB or 1.2-MB format
and 3.5-inch drives with 720-KB, 1.44-MB or 2.88-MB format.
Keyboard Connector
The keyboard connector at the rear of the system board allows you to
connect any AT-compatible keyboard.
1 SPP: Standard Parallel Port
EPP: Enhanced Parallel Port (IEEE 1284 compliant)
ECP: Extended Capabilities Port (IEEE 1284 compliant)
1-6 User’s Guide