Dell OptiPlex 745 Quick Reference Manual

Also see for OptiPlex 745: Administrator's guide User guide Tech specs Quick reference guide Quick reference guide

Contents

Quick Reference Guide 91 5.25-inch drive bay Can contain an optical drive. Insert a CD or DVD (if supported) into this drive.2 5.25-inch drive bay Can contain an optical drive. Insert a CD or DVD (if supported) into this drive.3 3.5-inch drive bay Can contain an optional floppy drive or optional media card reader.4 USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such asjoysticks or cameras, or for bootable USB devices (see your online User’s Guide formore information on booting to a USB device).It is recommended that you use the back USB connectors for devices that typicallyremain connected, such as printers and keyboards.5 LAN indicator light This light indicates that a LAN (local area network) connection is established.6 diagnostic lights Use the lights to help you troubleshoot a computer problem based on the diagnosticcode. For more information, see "Diagnostic Lights" on page 50.7 power button Press this button to turn on the computer.NOTICE: To avoid losing data, do not turn off the computer by pressing the powerbutton. Instead, perform an operating system shutdown. See "Before You Begin" onpage 25 for more information.NOTICE: If your operating system has ACPI enabled, when you press the powerbutton the computer will perform an operating system shutdown.8 power light The power light illuminates and blinks or remains solid to indicate different operatingmodes:• No light — The computer is turned off.• Steady green — The computer is in a normal operating state.• Blinking green — The computer is in a power-saving mode.• Blinking or solid amber — See your online User’s Guide.To exit from a power-saving mode, press the power button or use the keyboard or themouse if it is configured as a wake device in the Windows Device Manager. For moreinformation about sleep modes and exiting from a power-saving mode, see your onlineUser’s Guide.See "System Lights" on page 49 for a description of light codes that can help youtroubleshoot problems with your computer.9 hard-drive activity light This light flickers when the hard drive is being accessed.10 headphone connector Use the headphone connector to attach headphones and most kinds of speakers.11 microphone connector Use the microphone connector to attach a microphone.