Service manual
Table Of Contents
- Manual
- Preface
- 1: Introduction
- 2: Disassembly
- Overview
- Disassembly Steps
- To remove the hard disk drive assembly:
- To remove the CD device(s):
- To remove the RF module:
- To remove the system memory:
- To remove the CPU:
- To remove the modem:
- To remove the floppy disk drive assembly:
- To remove the optional wireless LAN module:
- To remove the inverter board:
- To remove the mainboard:
- To remove the LCD/LED board:
- To remove the base cover:
- To remove the speaker units:
- To remove the bridge board:
- To remove the CD device base brackets:
- To remove the USB board:
- To remove the power supply unit:
- Removing the Hard Disk Drive Assembly
- Removing the CD Devices
- Removing the RF Module
- Removing the System Memory
- Removing the CPU
- Removing the Modem
- Removing the Floppy Disk Drive Assembly
- Removing the Wireless LAN Module
- Removing the I/O Bracket
- Removing the Rear Bracket
- Removing the Inverter Board
- Removing the Mainboard
- Separating the Bottom Case from the LCD & Mainboard Assembly
- Removing the LCD
- Removing the LED Board
- Removing the Base Cover
- Removing the Speaker Units
- Removing the Bridge Board
- Removing the CD Device Base Brackets
- Removing the USB Board
- Removing the Power Supply Unit
- Appendix A: Part Lists
- Appendix B: Schematic Diagrams
- Table 1 - 1 Schematic Diagram
- System Block Diagram
- Clock Generator
- DRCG Panel Type
- CPU (P4 mPGA 478) - 1 of 2
- CPU (P4 mPGA478) - 2 of 2
- MCH (CPU, HUB, AGP) - 1 of 2
- MCH (RDRAM, PCI) - 2 of 2
- RAMBUS A,B
- CPU Decoupling
- ATI Mobility M6 - 1 of 3
- ATI Mobility M6 - 2 0f 3
- ATI Mobility M6 - 3 0f 3
- VRAM Terminator
- Z3, LVDS
- Micro-P, LCD PWR
- ICH2 - 1 of 2
- ICH2 - 2 of 2
- Audio Codec, AMP
- IDE, PCI Reset
- PCMCIA 1394
- 1394 PHY, PCMCIA Ejecter
- LAN 8139C
- Super I/O
- USB, Bluetooth
- LPT, IR/RF
- Mini PCI, MDC
- Power - 1 of 2
- Power - 2 of 2
- SSC, VGA Power
- VRAM DDR - 1 of 2
- VRAM DDR - 2 of 2
- Video In
- External USB Board
- LED Board
- Inverter Board - Page 1 of 2
- Inverter Board - Page 2 of 2
- Appendix C: Switches
- Appendix D: Updating the FLASH ROM BIOS

Introduction
1 - 2 System Specifications
1.Introduction
System Specifications
Processor
•Intel® Pentium® 4 (400MHz System Bus) - 1.4 ~ 2.0+GHz
• Supporting mPGA478 Processor Package
Core Logic
•Intel® 850
MCH = 82850
ICH-2 = 82801BA
Structure
• Fully PC 2001 Compliant
• ACPI 2.0 Compliant
Security
• BIOS password
Memory
• Two DIMM sockets supporting PC800 RDRAM
• DRAM upgradeable to 1GB (128/256/512MB RDRAM modules)
BIOS
• 2MB Flash ROM Phoenix BIOS
• Supports Plug and Play, ACPI 2.0
LCD
• 17”/18.1" SXGA 1280 * 1024 LCD Panel
Memory Module
Warning
There must be a mem-
ory module present in
both DIMM sockets to
make sure the compu-
ter will boot up. The
memory modules must
be the same size and
specification. The op-
tions are listed in the
table below.