AFL-xxA-N270 Series Panel PCPage VIII4.9.6 COM3 TX Function Select Jumper .................................................................. 404.9.7 COM3 RS-232/422/485 Serial Port Select Jumper ......................................... 414.10 M OUNTING THE SYSTEM ........................................................................................ 424.10.1 Wall Mounting................................................................................................ 434.10.2 Panel Mounting.............................................................................................. 464.10.3 Arm Mounting ................................................................................................ 484.10.4 Cabinet and Rack Installation ....................................................................... 504.11 BOTTOM PANEL CONNECTORS ................................................................................ 524.11.1 LAN Connection ............................................................................................. 524.11.2 Serial Device Connection............................................................................... 534.11.3 USB Device Connection ................................................................................. 555 SYSTEM MAINTENANCE ....................................................................................... 565.1 SYSTEM M AINTENANCE I NTRODUCTION .................................................................. 575.2 ANTI - STATIC PRECAUTIONS ...................................................................................... 575.3 TURN OFF THE POWER .............................................................................................. 585.4 OPENING THE SYSTEM .............................................................................................. 585.4.1 Removing the Back Cover................................................................................ 585.4.2 AFL-xxA-N270 Series Internal Aluminum Cover Removal ............................. 595.5 REPLACING COMPONENTS ........................................................................................ 605.5.1 Memory Module Replacement ......................................................................... 605.5.2 CF Card Replacement...................................................................................... 615.6 REINSTALLING THE COVERS ..................................................................................... 626 AMI BIOS SETUP ....................................................................................................... 636.1 I NTRODUCTION ......................................................................................................... 646.1.1 Starting Setup................................................................................................... 646.1.2 Using Setup ...................................................................................................... 646.1.3 Getting Help..................................................................................................... 656.1.4 Unable to Reboot After Configuration Changes.............................................. 656.1.5 BIOS Menu Bar................................................................................................ 656.2 M AIN ........................................................................................................................ 666.3 ADVANCED ............................................................................................................... 676.3.1 CPU Configuration.......................................................................................... 686.3.2 IDE Configuration ........................................................................................... 69