Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to upgrade your laptop's ram memory [title] Static can destroy your whole computer, so get some esd protection. [title] Save your work, shut down your computer, and close the display. [title] Disconnect all external devices attached to the laptop (like printers, flash drives, and headsets).

Ending1: [step] This way you won't have to remove them on the same trip. [title] Turn off all the multipurpose devices (like your external drives). Ending2: [title] Find the usb jack (if it's one). [title] Put the current display disc into the usb port. Ending3: [title] Disconnect all external hard drives from the laptop, including the optical drive. [title] Attach microphone connector at the ram drive. Ending4: [title] Unplug the a/c power cord and adapter. [title] Turn the laptop upside down on a flat surface.

Answer format: ending1/ending2/ending3/ending4