Dell 160 manual Enabling Selective USB, Use the Onboard Devices screen to enable Selective USB

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Selective USB

Dell™ OptiPlex™ FX160/160 Service Manual

Overview

Enabling Selective USB

Overview

Selective USB allows administrators to restrict two USB ports to support only a keyboard and a mouse and disable all other USB ports.

When using a selective USB port, you must connect the keyboard and mouse to the specific USB ports before booting the computer. A keyboard (without a USB hub) is required for the system to boot. When Selective USB is enabled and either the keyboard or mouse is removed the Selective USB feature automatically disables the designated ports.

1

Port 1 – mouse selective USB port

2

Port 0 – keyboard selective USB port

Enabling Selective USB

1.Turn off the computer.

2.Connect authorized USB devices in the selective USB ports.

3.Turn on the computer and press <F2> to enter the BIOS Setup Utility (see Entering the BIOS Setup Utility).

4.Use the Onboard Devices screen to enable Selective USB.

When enabled, the two selective USB ports will function with authorized USB devices only. All other USB ports will be disabled.

NOTE: If a mouse is not attached to USB port 1, the port is disabled.

5.Save the settings and reboot the computer.

During POST, the BIOS will check whether authorized USB devices are connected to the selective USB ports. If the devices are connected, the computer boots as normal. If devices are not connected, the computer prompts you to connect the authorized USB devices and reboot the system.

NOTE: If you disconnect a device from the selective USB port, the port becomes disabled. To re-enable the port, connect the device, power off, and reboot the system.

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Contents Model DC01T September 2008 Rev. A00 Removing the Antenna AntennaReplacing the Antenna Page Recommended Tools Working on Your ComputerBefore Working on Your Computer After Working on Your Computer Removing the Cable Guide Cable GuideReplacing the Cable Guide Removing the Coin-Cell Battery Coin-Cell BatteryReplacing the Coin-Cell Battery Removing the Computer Cover CoversReplacing the Computer Cover Replacing the Side Cover Removing the Side CoverPeg Peg retainer Side cover hooks Side cover hook slots2 Finding Information Removing the Hard Drive Bracket Assembly Hard Drive Assembly OptionalReplacing the Hard Drive Bracket Assembly Replacing the Hard Drive Removing the Hard DriveReplacing the Hard Drive Fan Removing the Hard Drive FanRemoving the Processor Heatsink Assembly Processor Heatsink AssemblyReplacing the Processor Heatsink Assembly Page DellConnect Online Services Technical Support and Customer ServiceGetting Help Obtaining AssistanceAutoTech Service Problems With Your OrderAutomated Order-Status Service Mobilesupport@us.dell.com Support@us.dell.comContacting Dell Before You CallRemoving the I/O Board BoardReplacing the I/O Board Cable guide metal tab Metal clip Removing a Memory Module MemoryReplacing a Memory Module Page Removing the Nvram Module Nvram ModuleReplacing the Nvram Module Back to Contents Removing the Power Supply Power SupplyReplacing the Power Supply Page Reinstalling Drivers and Utilities Reinstalling SoftwareDrivers Identifying DriversClick the Drivers tab→ Roll Back Driver Manually Reinstalling DriversStarting System Restore Re-imaging Operating Systems Installed on NvramUndoing the Last System Restore Windows Vista Only Restoring Your Operating SystemReinstalling Windows XP or Windows Vista User Accounts and PasswordsBefore you Begin Click Start → Control PanelClick User Accounts Click Administrative Tools → UserManagerClick Control Panel → User Accounts Removing the Computer Stand Computer StandReplacing the Computer Stand System Board Connectors System Board AssemblyRemoving the System Board Assembly Replacing the System Board Perform the procedure in After Working on Your Computer Entering the Bios Setup Utility System SetupBios Setup Utility Screens Bios Setup Utility OptionsBoot Sequence Setup LockChanging Boot Sequence for Future Boots Clearing Forgotten PasswordsSelect Specific Boot Device Flashing the Bios Clearing Cmos SettingsClick Save this program to disk, and then click OK Back to Contents Back to Contents Power Lights TroubleshootingDiagnostic Lights Diagnostic Light Codes During PostBeep Codes Code Description Suggested Resolution Repetitive Short beepsSystem Messages Replace the battery see Replacing the Coin-Cell BatteryWhen to Use the Dell Diagnostics Dell DiagnosticsStarting the Dell Diagnostics From Your Hard Drive Hardware TroubleshooterPage Option Function Dell Diagnostics Main MenuBattery Problems Solving ProblemsDrive Problems Tab FunctionProblems writing to an optical drive Optical drive problems optional, externalHard drive problems Adjust the Windows volume controlError Messages Mail and Internet ProblemsClick Properties→ Tools→ Check Now Click Start→ Control Panel→ Add or Remove ProgramsLockups and Software Problems Keyboard ProblemsComputer does not start up Computer stops respondingProgram crashes repeatedly Other software problemsProgram is designed for an earlier Windows operating system Solid blue screen appearsMouse Problems Memory ProblemsPower Problems Network ProblemsClick Start → Control Panel→ Hardware and Sound→ Mouse Verify that the printer is recognized by Windows Printer ProblemsDouble-clickPrinters and Faxes Click Start → Control Panel→ Hardware and Sound→ PrinterSound and Speaker Problems Scanner ProblemsNo sound from speakers Verify that the scanner is recognized by Microsoft WindowsNo sound from headphones Video and Monitor ProblemsCheck the monitor power light Dell Technical Update ServiceCheck the diagnostic lights See Diagnostic Lights Screen is blank Screen is difficult to readPage Selective USB Use the Onboard Devices screen to enable Selective USBEnabling Selective USB Removing the Wireless Card Wireless CardReplacing the Wireless Card