Aspire TC-780 Desktop Computer Service Guide 21Boot OptionsParameter Description OptionLaunch CSM Controls the launching the Compatibility SupportModule function when booting.NeverAlwaysBoot Priority Order1st Boot Device2nd Boot Device3rd Boot Device4th Boot DeviceDisplays the device assigned to the specified boot sequence. The SetupUtility attempts to boot the operating system in this order. By default, thecomputer searches for boot devices in the following order:• Windows Boot Manager• Optical drive (CD/DVD)• Removable device• Network boot (LAN)Hard Disk Drive Priority Press Enter to set the boot priority for the hard drive.Optical Disc Drive Priority Press Enter to set the boot priority for the optical drive.Removable Device Priority Press Enter to set the boot priority for a removable USB drive.Network Device Priority Press Enter to set the boot priority for a network boot.Boot Menu Enable or disable the boot menu function. EnabledDisabledBootup Num-Lock Enables or disables the Num-Lock key during boot. OnOffHalt On Determines whether the system will stop for an errorduring the POST. Options include:• All, but Keyboard – If a keyboard error is detected,BIOS will pause the system.• All Errors –- Any error detected will pause the system.• No Errors – BIOS will ignore any errors detectedduring POSTAll, ButKeyboardAll ErrorsNo Errors