Corsair VS 450 Watt 80 PLUS White Certified Power Supply Zebra Symbol LS1203 Run the Dell ePSA hardware

Run the Dell ePSA hardware diagnostic test Running a hardware diagnostic test can help you identify what the issue may be and provide you troubleshooting steps to help resolve the issue

Updating the BIOS to the latest version requires the laptop PC to be powered by the adapter and battery

Latitude 5400

use the adapter that came with the Dell laptop PC

Corsair VS 450 Watt 80 PLUS White Certified Power Supply Zebra Symbol LS1203 Run the Dell ePSA hardwareThe CORSAIR VS Series combines stable 80 PLUS efficiency power and affordable pricing from the worlds most trusted name in PC power supplies. It delivers a guaranteed 450 Watts of continuous power. With universal input the power supply includes circuitry with components that can tolerate a wide range of mains voltage support (100 240 VAC). The dedicated single +12V rail saves you from the hassle of balancing your components across multiple power