Startup problemsProblem SolutionThe computer does not start up when youpress the power button.• Ensure that the power cord is correctly connected to the rear of thecomputer and to a working electrical outlet.• If the computer has a secondary power switch on the rear of thecomputer, ensure that it is switched on.• The power indicator on the front of the computer is on.• The computer voltage matches the voltage available at theelectrical outlet for your country or region.The operating system does not start up fromthe correct storage drive or fails to start up• Ensure that all storage drive signal cables and power cables areconnected correctly.• Ensure that the storage drive the computer starts up from is listedas the first startup device in UEFI BIOS.• In rare cases, the storage drive with the operating system might getcorrupted or damaged. In such cases, you might need to replacethe storage drive.• If the computer is installed with an Optane memory:– Ensure that the Optane memory is not removed.– Ensure that the Optane memory is not damaged. Check theOptane memory using diagnostic tools.The computer beeps multiple times beforethe operating system starts up. Ensure that no keys are stuck.40 M70c Hardware Maintenance Manual