Introduction

PC 99 ATX External Connector

 

 

 

 

CN5: LPT

CN18:

GAME

 

CN35: LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN2: M/S

CN1: K/B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LINE-IN

CN4: COM2

CN3: COM1

CN6: USB1

CN7: USB2

 

 

SPK-OUT / FRONT SPK-OUT MIC-IN

 

 

 

 

1.2. Overview

1.2.1. The P4X4-ALH Mainboard

The P4X4-ALHmainboard is a Pentium™ 4 DDR platform. Onboard it pro- vides three DDR DIMM slots (support up to DDR333), six USB2.0 ports, six PCI slots and one 1.5V 4X/8X AGP slot. There are also two fan connectors (for ad- ditional thermal protection) and three power supply connectors. Additionally, it comes with Onboard Audio (AC’97 6-channel), Onboard LAN [VIA VT6103 (PHY)] and WOL (Wake-On-LAN) connector that enables it to be “woken up” from a soft-off power state when it receives a signal from the LAN. Other on- board connectors include CD-IN, AUX-IN and Front Audio connectors etc.

1.2.2. Mainboard Dimensions

 

Width

305 mm

 

Length

230 mm

 

1.2.3. Environmental Limitations

 

Operating Temperature:

10°C to 40°C (50°F to 104°F)

Required Airflow:

50 linear feet per minute across the CPU

Storage Temperature:

-40°C to 70°C (-40°F to 158°F)

Humidity:

 

0 to 90% non-condensing

Altitude:

 

0 to 10 000 feet

1.3. Features and Specifications

Processor

The P4X4-ALH mainboard supports Intel® Pentium™ 4 Socket 478 CPUs.

Chipsets

Northbridge

Southbridge

I/O Chipset

 

 

 

VIA P4X400

VIA VT8235 (CD)

Winbond W83697HF

 

 

 

Page 6

The P4X4-ALH Mainboard

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Image 6
Microsoft manual Overview, Features and Specifications, P4X4-ALH Mainboard, Mainboard Dimensions