We use cookies to provide you with a better experience. If you continue to use this site, we'll assume you're happy with this. Alternatively, click here to find out how to manage these cookies

hide cookie message
2,862 Tutorials

How to solve a PC power problem

Dealing with an unexpected power loss

QUESTION My PC automatically shuts down 15 minutes after startup. I’ve replaced the power supply, but it hasn't solved the problem. Jim Oram

HELPROOM ANSWER It sounds like an overheating issue, Jim.

As your PC warms up, a component or area of motherboard solder may be expanding to the extent that it breaks a connection.

First, turn off your PC and disconnect it from the mains. Earth yourself by touching something metal, such as a radiator, then open the case. Remove and reseat each component in turn, ensuring that all components are replaced and cables are reconnected correctly.

If your machine continues to shut down without warning, take it to a local PC repair shop – it may require a new motherboard or other component.

See also: How to fix everything: the ultimate guide to fixing technology

Get free tech support 24 hours a day at PC Advisor's Helproom Forum

IDG UK Sites

6 best gaming PCs 2015: What's the best gaming PC you can buy in the UK?

IDG UK Sites

Three of the most expensive Limited Edition games ever made: Who's buying a $1,000,000 game?

IDG UK Sites

The future of Microsoft Surface: What to expect from the Surface Pro 4

IDG UK Sites

Best Mac: Apple Mac buyers guide for 2015: iMac, MacBook, MacBook Air, MacBook Pro, Mac mini and...