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Contents
1
Motherboard Description
1.1
Overview
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7
1.2
Motherboard Manufacturing Options
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9
1.3
Form Factor
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10
1.4
I/O Shield
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11
1.5
Microprocessor
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12
1.5.1
Microprocessor Upgrade
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12
1.6
Memory
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13
1.6.1
Main Memory
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13
1.6.2
Second Level Cache
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14
1.7
Chipset
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14
1.7.1
82439TX System Controller (MTXC)
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14
1.7.2
82371AB PCI ISA IDE Xcelerator (PIIX4)
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15
1.7.3
Universal Serial Bus (USB) Support
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16
1.7.4
IDE Support
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16
1.8
Super I/O Controller
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17
1.8.1
Serial Ports
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17
1.8.2
Parallel Port
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18
1.8.3
Floppy Controller
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18
1.8.4
Keyboard and Mouse Interface
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18
1.8.5
Infrared Support
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19
1.9
Graphics Subsystem
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19
1.9.1
Graphics Controller
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19
1.9.2
VESA/ATI Multimedia Channel Connector
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20
1.9.3
Brooktree Video Capture Processor
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20
1.9.4
ImpacTV NTSC/PAL Encoder
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21
1.10
Audio Subsystem
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22
1.10.1
Yamaha OPL4-ML
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23
1.10.2
Audio Drivers and Utilities
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23
1.10.3
Audio Connectors
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23
1.10.4
CD-ROM audio connector
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23
1.11
Motherboard Connectors
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24
1.11.1
Power Supply Connector
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29
1.11.2
Front panel Connectors
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30
1.11.3
Back Panel Connectors
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33
1.11.4
Optional TV/Video Riser Card Connectors
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36
1.12
Add-in Board Expansion Connectors
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38
1.13
Jumper Settings
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41
1.13.1
Processor Configuration (J9C1-C, D)
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42
1.13.2
Password Clear (J9C1-A)
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43
1.13.3
Clear CMOS (J9C1-A)
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43
1.13.4
BIOS Setup Access (J9C1-B)
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43
1.13.5
BIOS Recovery (J8A1)
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43
1.13.6
Processor Voltage (J6M1)
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43