Dell Inspiron 1150 Power Problem

I have a Dell Inspiron 1150 that won't power on, I have tested the adapter and it is good. If you remove the battery and use only the adapter the three device status lights blink green at the same time, but it dosen't power on. The power socket appears to be good.  I have tried reseating the Ram but no success. Any ideas would be welcome.
Regards Jullie
Jullie123Asked:
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Rodney BarnhardtConnect With a Mentor Server AdministratorCommented:
I used to be a Dell certified tech. For the three status lights blinking in sync it is either a bad\loose processor or a bad motherboard. We would get service calls on the CP model to reseat the processor for this problem all of the time.
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Rodney BarnhardtServer AdministratorCommented:
If you have the three LED's blinking, then try to reseat the processor. If that does not do it, it is bad system board.
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captainmorgankCommented:
Have you tried to remove all drives and peripherals, (modems, wireless network cards...) and see if it will boot? If you have more then 1 memory card remove one at a time and try again.
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andossCommented:
Definately sounds like the mainboards dead, if it's under warranty call Dell and get a replacement. If not things could be alittle expensive for you.

Sorry can't be any help but if you've tested the RAM properly and still having this issue it's mainboard.
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Jullie123Author Commented:
Thanks you guys,
I will try the above tonight and see if it helps, if not surely a new board is cheaper than a new computer.  I'll give it a go. Jullie
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nobusCommented:
you can also remove the cd drive, and disk drive, and check if you get a display.
if you remove ALL ram - it should beep
otherwise : bad mobo or cpu
>>   I have tested the adapter and it is good   <<  how ?  with another laptop?, then yes it is ok
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Jullie123Author Commented:
Thank you very much, I have reseated the processor and this has got me going again.
Regards Jullie
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