laptop turns on but does not boot

Hi got a samsung 3530EC.

windows 8 on it.

Got a problem. I turn on the laptop, it goes to the samsung screen but does not load windows. Instead it turns off, then turns on again to the samsung screen, turns off and then turns on again. It keeps doing this until I eventually keep my finger pressed down on the power button and it turns off properly.

I have tried pressing F2 when booting to try and get into bios but this does not work, it does not go into bios, it just turns off again.

I've removed battery and tried with just power cable and that does not work either. What could it be and what should I try to do?

If you can advise

Many thanks.
RupertAAsked:
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Joshua GrantomSenior Systems AdministratorCommented:
i would open all the access doors on the bottom and re-seat everything you can. RAM, HDD, etc...

Was it dropped recently?
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KimputerCommented:
This all happens at a stage where you can do nothing. First of all, do you still have a warranty?
If yes, bring it in (hope you have a current backup!)
If no, then there's not that much you can do. Open the laptop, remove hard disk. Check again. Replace memory, check again. Nothing more you can do.
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RupertAAuthor Commented:
Hi a, tried that but it didn't make any difference.

any other suggestions?
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nobusCommented:
here my laptop troubleshooting guide, i hope it helps you :
- remove all external devices
-you can disable devices from BIOS to test (sound, lan, etc..)
- 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

for troubleshooting the display (LCD) problems : http://www.lcdparts.net/howto/symptom.aspx
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RupertAAuthor Commented:
Thanks guys for the helpful comments. I took it to a repair shop and they told me that it needed to go back to  Samsung. Points handed out.
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