Holding the on button turns it off. Remove the battery then try it just on mains. you could also try starting it without the hard drive as it should boot to bios if you do not have the drive in and it boots hold the ON button to shut down
AMD Radeon Adrenalin release date, new features, compatible graphics cards
Indie publisher Canongate’s top 10 book covers of 2017
New iMac Pro release date, UK price & specs rumours
Tablettes Amazon Fire : quel modèle choisir ?