If your Mac is a desktop you will need to unplug it and leave it unplugged for at least ten seconds before plugging it back in and attempting to restart.

Hopefully after waiting ten seconds and restarting, all will be well. You’ll usually hear a squeak as the Mac’s power is forcibly cut.

On a MacBook you need to hold down the power key for ten seconds.

If you aren’t hearing any signs of life, you could perform a power cycle, which involves forcing your Mac to restart after killing the power to it. If none of those steps work then it’s time to move onto the next stage. (If possible, reinstall the old memory or hard drive and see if that helps.) If you recently installed new RAM or a new hard drive in your Mac (both of which are something you can only do with old Macs), make sure they are correctly installed and compatible. It could be that one of your peripherals is causing problems with the startup sequence. Unplug all the accessories (such as printers and USB hubs) attached to your Mac. You should find the one you need here: Apple power adaptors. Also read: Which MacBook charger do I need? iii) Disconnect all accessories But we doubt it will be that easy.Īpple sells various cables for charging Apple Macs and laptops.

If you recently had a power cut, that could be responsible: your power adaptor could have been damaged in a power surge and you may need a new one.įinally, it’s possible that the cable is loose, and pulling it out and plugging it in again will solve the problem. If it does, it could be a simple fix that involves finding a secondhand power cable on eBay (although we advise against buying third-party power cables that aren’t made by Apple, as they are much more likely to be faulty and possibly dangerous). If you’ve got a friend with a Mac power cable that fits your machine, try it to see if that solves the problem. It may be that the fault resides with the power cable.

ii) Try a different power cable or adapter Or if it’s a laptop, be sure that the battery isn’t dead – and if it needs charging give it a while to attempt to charge before concluding that it isn’t going to work. If your computer doesn’t turn on then you need to do the following: i) Check your power connectionĭon’t be the cliché: check that the power is on and the Mac is plugged in correctly. You’re not even getting to the point where it refuses to start up.Ī Mac that doesn’t turn on calls for a different approach to one that doesn’t start up. If you don’t hear a startup chime, you don’t hear any fan or drive noise, and there are no images, video, or visuals of any sort on your display, then your Mac isn’t turning on at all. First, let’s find out if the problem is that your Mac won’t start up, or that it won’t turn on – those might sound like the same thing, but there’s actually a big difference.

Macbook pro early 2011 battery