Question about EliteGroup ECS G733 Notebook

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Dead ECS G733 laptop

Will not turn on, power comes in from "brick" power supply.
I took laptop apart and cleaned it, and while handeling the "power button assembly" it came on.
It worked fine for 3 days then died again , took it apart again and fiddled with the Power button assembly again , it started briefly and made a nasty "something is hitting the fan" noise and turned off.
I dissasembled it completelly and found a loose piece of CPU heat sink , Removed it and re assembled it .
But It is completelly dead , It behaves as if power is not present but there are 9V at the jack.
Is it possible that the "power button assembly"( a small board with 3 buttons, connected by a multyconductor cord to the board) is faulty?
ECS wants to sell me a new motherboard.
Help

Posted by alexscarpati on

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Anonymous

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Jimbo6:

your G733 may have two problems:

1. power adaptor which should have an OVC of 19-20v in order to charge the battery of 14.8v.

2. while you clean the button, you trigered the power supply circuit within the motherboard. as I suggested to Clinta74, it is the 1500uF6.3v capacitor(s). it is very bad indeed, but not completely dead, so it might start briefly.

since you know how to fiddle with the heat sink, you probably have alread reached the bare motherboard. Check that the caps first.

good luck!

pc-cook

Posted on Jan 26, 2008

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Yes, try replacing the power button assembly first and the heatsink assembly and fan before shelling out big bucks on a Mobo (which is probably pulled from another LT).

Posted on Jan 14, 2008

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