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Laptop no boot!

Posted on 2013-01-15
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Last Modified: 2013-01-27
Computer was dropped.  Lcd screen was damaged.  System would boot up.  I replaced screen and now system won't boot.  Hard drive flashes for one sec and then nothing.  I put old damaged screen back in and same thing.

Maybe motherboard was damaged during drop as well?  Now not working?
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Question by:WrightNetDesigns
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11 Comments
 
LVL 23

Expert Comment

by:Thomas Grassi
ID: 38780084
Did you try a external monitor?

Did you reseat the hard drive and memory ?
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LVL 15

Expert Comment

by:Perarduaadastra
ID: 38780239
Take the screen and inverter (if there is one) out and leave them out. Connect a monitor to the external VGA port and see if the laptop boots up. If it does, there's most likely a problem with one of the screen connectors; the actual pins in them are tiny and numerous and easily damaged, and if there's a short then the system may well not boot.
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LVL 30

Expert Comment

by:IanTh
ID: 38780354
was the laptop on when it was dropped if so hdd could have had a head crash which is very bad

when it does come on for a second and go off it could be damaged

it could also be the power port was damaged and there is no power in the battery
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LVL 93

Expert Comment

by:nobus
ID: 38781673
i would review the work you did; if it booted before, it still should do so
likely you have a bad connection, so inspect all connectors, and remove / reseat them
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Author Comment

by:WrightNetDesigns
ID: 38783181
I have reset memory, reset hard drive, hard drive light blinks for a minute then quits.

I have tried another hard drive and still the same.  This leaves me to think it is the motherboard.
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LVL 93

Expert Comment

by:nobus
ID: 38783583
remove and reseat the cpu also then, since it's not working, you risk nothing
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LVL 23

Expert Comment

by:Thomas Grassi
ID: 38784587
WrightNetDesigns

When it dropped and you picked it up did you hear anything inside moving around?

Shake it a liitle see if you can hear anything

Depends on how hard it fell but someting could have broke on the motherboard

Sorry but only thing it is good for now is a door stop
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LVL 93

Expert Comment

by:nobus
ID: 38786005
maybe you find here some more steps to try :
- remove all external devices
- if no display - test with an external monitor
- test if it runs from battery alone, or from AC alone
- test also with a known good battery !
***some laptops have a reset button - if you have one use it!
- remove battery and AC adaptor, hold power button for 20 sec, connect AC and reboot --> any display ? if NO -->
- disconnect all disk and cd drives, battery , and other cards and peripherals, leave only 1 ram stick
- boot -->any display ?
-if you can access the bios battery, remove the battery, AC, and bios battery for a minute to reset the bios
or test it, it should read 3 V
*** you can test the disk on another pc, if you like !

===>>you can test if the mobo works outside the casing, connected to power and external video  !

you can also remove and reseat the video plug - it sometimes comes loose
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Accepted Solution

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WrightNetDesigns earned 0 total points
ID: 38807791
Motherboard damaged
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LVL 23

Expert Comment

by:Thomas Grassi
ID: 38808240
You should assign points for the help we gave.

My comments told you it was a bad motherboard that deserves points
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Author Closing Comment

by:WrightNetDesigns
ID: 38823871
All the above where good answers but the problem was the motherboard
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