Need help, blew fuse! Tags: Power Supplies Laptops USB Power Components Last response: June 23, 2012 8:43 AM in Components Share ariej June 23, 2012 6:53:14 AM hi, i accidentally put the power jack into the usb port on my laptop, it popped and a little smoked came out, now the laptop wont come on??? what did i do and how can i fix it????? More about : blew fuse mbarnes86 a b ) Power supply a b D Laptop June 23, 2012 8:43:57 AM Hi most laptop power supplies produce 18 Volts to 20 Volts usb uses 5 Volts It looks like the the motherboard is damaged as the laptop will not switch on. Try removing battery (and power lead), pressing on button for about 30 seconds, replace battery and see if it will then switch on Only an expert can decide if the motherboard can be repaired or needs to be replaced. You probably need someone who specialises in your brand of laptop regards Mike Barnes Can't find your answer ? Ask ! Publish Related resources : ForumPSU blew house fuse ForumMy OCed 7600GS just blew the fuse for 2 rooms and fried my ForumBlew fuses on my hard drives... is recovery possible/easy? ForumPower Supply blew house fuse ForumHafler 9290 power amp blew line fuse ForumPsu blew out after i ordered a £200 graphics card :( ForumMy PSU just blew up...? ForumMy computer just like BLEW UP ForumTech: Left flipper fuse blew on 3 week old LOTR....should .. ForumLogitech Z-5500 fuse replacement ForumMy computer blew up =( ForumNeed Help . PSU Blew ??? ForumChanging Fuse in Mackie Hard Disk Recorder ForumWilliams coinbox blows fuse ForumPsu blew up NEED HELP !! ForumNeed fuse for Simran 3000 Watt Converter ForumPower Supply Blowing Fuse Forum500w PSU ForumWill my rig run Macintosh OS X? Thanks for help/reading! ForumHelp me select the components for ESXi More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !