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P2XLX System Board User?s Manual
Onboard I/O
? Two NS16C550A-compatible DB-9 serial ports
? One SPP/ECP/EPP DB-25 parallel port
? One floppy drive interface supports up to two 2.88MB floppy
drives
? One mini-DIN-6 PS/2 mouse port
? One mini-DIN-6 PS/2 keyboard port
? One WOL (Wake-On-LAN) connector
PCI Bus Master IDE Controller
? Two PCI IDE interfaces support up to four IDE devices
? Ultra DMA/33 supported (Synchronous Ultra DMA mode -
data transfer rate up to a maximum of 33MB/sec.)
? PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up
to 16.6MB/sec.)
? Bus mastering reduces CPU utilization during disk transfer
? ATAPI CD-ROM supported
? LS-120 and ZIP supported
IrDA Interface
The system board is equipped with an IrDA connector for wireless
connectivity between your computer and peripheral devices. It
supports peripheral devices that meet the IrDA or ASKIR
standard.
USB Ports
The system board is equipped with two USB ports. USB allows
data exchange between your computer and a wide range of
simultaneously accessible external Plug and Play peripherals.
BIOS
? Award BIOS, Windowsâ 95 Plug and Play compatible
? Flash EPROM for easy BIOS upgrades
? Includes NCR 810 SCSI BIOS
1 Introduction
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ATX Power Supply Connector
The system board is equipped with an ATX power supply
connector. Using an ATX power supply, you can either shut down
your computer by pressing the Power button located on the front
bezel of your computer or by executing the Shut Down
command under the Windowsâ 95 operating system. Your system
will then enter the ?Soft Off? state.
To power on your system automatically, enable ?Resume By Alarm?
in the Power Management Setup of the Award BIOS. This will
allow you to set the date and time you would like your system to
wake up.
1.1.2 Technology
AGP (Accelerated Graphics Port)
The system board is equipped with 1 AGP slot. AGP is an
interface designed to support high performance 3D graphics cards.
It utilizes a dedicated pipeline to access system memory for
texturing, z-buffering and alpha blending; delivering up to 533MB/
sec. bandwidth for 3D graphics applications. AGP in this Pentiumâ
II processor based system board will deliver faster and better
graphics with your PC.
SDRAM (Synchronous Dynamic Random Access Memory)
The system board supports unbuffered SDRAM memory. SDRAM
is a DRAM technology that uses the clock on the chip to
synchronize with the CPU clock so that the timing of the memory
chips and the timing of the CPU are synchronized. This saves time
during transmission of data, subsequently increasing system
performance.
Ultra DMA/33 Bus Master IDE
Synchronous Ultra DMA mode provides data transfer rate up to a
maximum of 33MB/sec, which is twice the data transfer rate of
Enhanced IDE or ATA-2. This enables the CPU to operate more
efficiently when handling simultaneous events.
P2XLX System Board User?s Manual 1
ECC (Error Checking and Correction)
ECC is a function that allows the system to recover from
memory failure. It detects single-bit and multiple-bit errors and
corrects single-bit error thus providing uninterrupted processing of
data. To use this function, you must install DIMM that supports
parity. Refer to the ?Installing System Memory? section in Chapter
2 of this manual.
ACPI (Advanced Configuration and Power Interface)
The system board is designed to meet the ACPI specification.
ACPI has energy saving features that enables PCs to implement
Power Management and Plug-and-Play with operating systems that
support OS Direct Power Management.
PC ?97 Compliant
The system board is PC ?97 compliant. This will optimize your PC
system to run Windowsâ 95 and Windows NTâ and future
versions of these operating systems.