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4. SYSTEM HARDWARE INSTALLATION ........... 4-37
4.1. INSTALLING THE CPU...................................4-39
4.2. INSTALLING THE SDRAM MEMORY MODULE ........4-40
4.3. INSTALLING THE HDD ..................................4-41
4.3.1. OPEN 120/140 2.5" HDD Installation ......4-41
4.3.2. OPEN 150 3.5" HDD Installation............4-42
4.4. INSTALLING THE FDD...................................4-43
4.4.1. External FDD connection .......................4-43
4.4.2. Internal FDD installation for OPEN 150....4-44
4.5. INSTALLING THE CD-ROM DRIVE.....................4-45
4.5.1. External CD-ROM connection .................4-45
4.5.2. Installing Internal CD-ROM for OPEN 150 4-46
4.6. EXPANSION SLOT........................................4-47
5. I/O CONNECTION........................................ 5-49
5.1. VGA INTERFACE.........................................5-50
5.2. COM PORTS X 4 ........................................5-51
5.3. PARALLEL PORT ..........................................5-53
5.4. 100/10 BASE-T ETHERNET (RJ-45)................5-53
5.5. USB PORTS..............................................5-54
5.6. AUDIO INTERFACE .......................................5-54
5.7. EXTERNAL FDD (DB-15) .............................5-55
5.8. +5V/12V DC-OUT ....................................5-56
5.9. PS/2 KEYBOARD INTERFACE...........................5-56
5.10. PS/2 MOUSE ............................................5-56
5.11. AC/DC INLET/POWER SWITCH .......................5-56
6. SYSTEM CONTROL BOARD ........................... 6-57
6.1. INTRODUCTION ..........................................6-58
6.1.1. General Information .............................6-58
6.1.2. Features..............................................6-59
6.1.3. Specifications.......................................6-60
6.1.4. Board Placement & Dimension ...............6-62