Lenovo IdeaCentre C240 Hardware Maintenance Manual

Also see for IdeaCentre C240: Maintenance manual User guide User guide

Contents

SATA Mode Select Disabled/IDE/AHCI mode. Device driver supportis required for AHCI or RAID. Depending on how the harddisk drive image was installed, changing this setting mayprevent the system from booting.Onboard Audio Controller Select whether to enable or disable the OnboardAudio Controller. When this feature is set to Disabledall devices connected to the audio connectors (e.g.headphones or a microphone) are disabled and cannotbe used.Onboard Ethernet Controller or LAN Boot Agent Select whether to enable or disable the Onboard EthernetController, or select whether to enable or disable loadonboard PXE (Preboot Execution Environment).To enable or disable a device, do the following:1. Start the Setup Utility program (see “Starting the Setup Utility program” on page 13).2. From the Setup Utility program menu, select Devices.3. Select an option as follows:Select USB Setup, press the Enter key, then select USB Functions.Select ATA Drivers Setup, press the Enter key, then select SATA Mode.Select Audio Setup, press the Enter key, then select Onboard Audio Controller.Select Network Setup, press the Enter key, then select Onboard Ethernet Support or LAN BootAgent.4. Select Disabled or Enabled and press the Enter key.5. Return to the Lenovo BIOS Setup Utility program menu and select the Exit option.6. Select Save Changes and Exit from the menu.Notes:a. If you do not want to save the settings, select Discard Changes and Exit from the menu.Selecting a startup deviceIf your computer does not boot from a device such as the CD/DVD-ROM drive disk or hard disk as expected,follow one of the procedures below.Selecting a temporary startup deviceUse this procedure to start up from any boot device.Note: Not all CDs, DVDs or hard disk drives are bootable.1. Turn off your computer.2. Press and hold the F12 key then turn on the computer. When the Startup Device Menu appears,release the F12 key.Note: If the Startup Device Menu does not display using these steps, repeatedly press and release theF12 key rather than keeping it pressed when turning on the computer.3. Use ↑ and ↓ arrows to select the desired startup device from the Startup Device Menu and pressthe Enter key to begin.Note: Selecting a startup device from the Startup Device Menu does not permanently change thestartup sequence.16 Lenovo C240/245/255 All-In-One PC Hardware Maintenance Manual