SilentMarket Posted January 11, 2013 Share Posted January 11, 2013 got a GT780DX and i miss connected the adapter then one of the chips in the laptop was burnt down? anyone who got a same GT780DX know what's the model of this chip?i need a replace of this chip this is a picture of my burnt chip link: http://i.imgur.com/W7ip8.jpg Quote Link to comment Share on other sites More sharing options...
svl7 Posted January 11, 2013 Share Posted January 11, 2013 Google for the laptop schematics, if it's on the net then that's the easiest way of identifying the part. Quote Link to comment Share on other sites More sharing options...
SilentMarket Posted January 11, 2013 Author Share Posted January 11, 2013 Google for the laptop schematics, if it's on the net then that's the easiest way of identifying the part.i tried but couldn't find it i really hope somebody who has the same laptop could help me to find out the model of that chip Quote Link to comment Share on other sites More sharing options...
Moderator BAKED Posted January 11, 2013 Moderator Share Posted January 11, 2013 I've got the same motherboard lying around, if you shine a flashlight from the side onto that chip there will be a brand and nr on it. When replacing components on it make sure not to heat for to long or the epoxy holding down the pads will loosen and you'll end up with lifted pads.Maybe I can desolder it from mine and send it to you for free if you pay the postage. Quote Link to comment Share on other sites More sharing options...
SilentMarket Posted January 11, 2013 Author Share Posted January 11, 2013 i did use a flash light but the words on it melt with the chip,i can only see few part of these words Sent from my HTC One X using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
SilentMarket Posted January 11, 2013 Author Share Posted January 11, 2013 I've got the same motherboard lying around, if you shine a flashlight from the side onto that chip there will be a brand and nr on it. When replacing components on it make sure not to heat for to long or the epoxy holding down the pads will loosen and you'll end up with lifted pads.Maybe I can desolder it from mine and send it to you for free if you pay the postage.Much thanks , but i live too far from sweden, can you tell me the model of this chip?then I might found the chip around the local repair shops based on the model of it.Sent from my HTC One X using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
Moderator BAKED Posted January 11, 2013 Moderator Share Posted January 11, 2013 It's a Mosfet, the brand is alpha and omega and the model is: 4932If no luck finding any feel free to PM me. 1 Quote Link to comment Share on other sites More sharing options...
SilentMarket Posted January 11, 2013 Author Share Posted January 11, 2013 thank u with tear in my eye,I may try contacting local repair shops to find out if there's the same kind. Now the battery is dead waiting for recharging. I have no way to open my laptop again...Sent from my HTC One X using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
Moderator BAKED Posted January 11, 2013 Moderator Share Posted January 11, 2013 No way to open? :S Just don't try to power it on it may only cause more damage. If you get the part and bring your stripped down mobo to a repair shop or someone with the expertise it wont cost you too much. Good luck! Quote Link to comment Share on other sites More sharing options...
SilentMarket Posted January 12, 2013 Author Share Posted January 12, 2013 No way to open? :S Just don't try to power it on it may only cause more damage. If you get the part and bring your stripped down mobo to a repair shop or someone with the expertise it wont cost you too much. Good luck! i just bought some IC 4932 model made by alpha & omega on the Internet and i have a laptop battery charger filling the battery to open my laptop again i really feel grateful from bottom of my heart to people like Suoah and svl7 who help others with patience and enthusiasm. that's what internet means, to convey a belief that there are always warm-hearted in the world and always hopes that we can make it. Quote Link to comment Share on other sites More sharing options...
SilentMarket Posted January 14, 2013 Author Share Posted January 14, 2013 today i finally dissembled my laptop piece by piece but i found the model isn't matched it's 4914B not 4932, is there any difference? and i unfortunately found another IC of which model is 8731AE was burnt too.. now i have to find another onephoto link:http://i.imgur.com/Irmmh.jpg Quote Link to comment Share on other sites More sharing options...
SilentMarket Posted January 15, 2013 Author Share Posted January 15, 2013 finally, after purchasing two piece of IC to replace on motherboard,i got my laptop repaired successfully,thanks for the help:banane58: 1 Quote Link to comment Share on other sites More sharing options...
SilentMarket Posted January 17, 2013 Author Share Posted January 17, 2013 There's another problem:Before Win 7 got slower , I've forced laptop shut down sevel times.I have two OS in SDD,Win 7 & Win 8. When I copy & paste the same files from the same directory in another hard disk(not in SDD),I found it takes a real long time. While in win 8,it's much faster.How to solve this problem? I don't want to reinstall Win 7 to make it fast again.Sent from my HTC One X using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
Xonar Posted January 25, 2013 Share Posted January 25, 2013 Sometimes a format is your only option. 1 Quote Link to comment Share on other sites More sharing options...
omega939 Posted January 30, 2013 Share Posted January 30, 2013 @SilentMarketAre you using the original ac adapter of you nb? The 180 watts? Then u somehow accidentally " disconnected the adapter" and one of the mosfet burned? Can tell the details? Tnx Quote Link to comment Share on other sites More sharing options...
SilentMarket Posted February 1, 2013 Author Share Posted February 1, 2013 it's not an original adapter.I modified it to increase power supply but failedSent from my HTC One X using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
omega939 Posted February 1, 2013 Share Posted February 1, 2013 it's not an original adapter.I modified it to increase power supply but failedhmmm so from what you said you didnt buy a dell adapter 240watts? I opened this thread http://forum.techinferno.com/msi/2645-220-watts-ac-adapter-msi-gt60-70-a.htmlBecause i am looking to upgrading my adapter to get a dell 240 watts. Several people gave good feedbacks which some of them have already.... I want to follow GrimMachines suggestion though when replacing the end plug of the dell adapter and his advice when looking for an adapaterRegarding the question about voltage, check your laptops voltage and amps, as long as you are within 5% of the voltage (mine is 19v but the new dell power brick is 19.5v) then that is fine and amps is ok as long as its the same or more just not less as amps is what the power supply CAN provide but will only provide it if it is drawn by the laptop. Quote Link to comment Share on other sites More sharing options...
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