To do this, open the computer, remove the memory modules from their slots, and gently reseat them. Verify the memory modules are properly seated in the memory slots on the motherboard. If you hear what sounds like small rocks banging around, you likely have loose screws inside the case. Lift your computer and gently rotate it while gently shaking it from side to side. Computers are full of screws, as they hold nearly every internal component in place, and from time to time, they can come loose. Electrical shortĪn electrical short in a computer, which may cause power issues, happens when pieces of metal cause a path for electricity to flow through that shouldn't exist. If the computer stays powered on, the surge protector or battery back-up unit is bad and needs to be replaced. Turn on the computer to see if the problem persists. If this situation applies to your computer, unplug its power cord from the surge protector or battery back-up unit, and plug it directly into a wall outlet. As computers require a specific amount of power to operate, too great a reduction can force the computer to shut down. Surge protectors and battery back-up units can go bad over time, causing reduced power flow to the computer. Sometimes, the best way to verify a cable is not loose is to disconnect and reconnect ( reseat) the cable on both ends.

Laptop turns on then off right away