HP Pavilion Dv7-4285dx Entertainment computer laptop Wont stay turned on

Alrighty this is one video of my HP Pavilion Dv7 - 4285dx Entertainment Notebook Wont work video. Basically, I can't understand what was lacking on this wise material issue (and if its even possible to distance just buy a spare part) or so badly need to buy a whole new computer altogether. Already have a portable game, but I'd rather have this laptop specifically for the armed forces when were allowed to use our computers civi make calculation on projects say. Any viable solution to possibly rebuild the machine, tell buy spare parts would be epic, but I can't determine what is the problem with it on my own.

It may make more sense to look at the video that I can show what the machine is doing when I try to use it. Video--> http://youtu.be/KO4LAP2mJNM

He's fine, the jist is that the machine is not turned on. The power LED flashes quickly, the F12 key light flashes quickly, light flickers hard drive read/write and the power on the portion sparkles. Also the battery is removed the iron on if this is a battery issue, I've already pulled out it is not not a bad adapter block. Regarding the power light, it's a constant light to solid white'.

Someone at - it ideas?

I understand that the system is off almost instantly after having turned it on.

Based on the symptoms and the video, it looks like the motherboard has failed.  There are only so many components that can cause this problem.  The battery and Charger AC/DC have been rejected.  The laptop seems to receive a continuous power supply because the light stays on.  You could try reinstalling the RAM it could be just loose enough to trigger a security breach.  I doubt that is the case since that RAM in laptop computers is guaranteed to be generally quite good.  The disk HARD and WLAN module would not cause these symptoms.

I know that's not the answer you are looking for, but the symptoms do not match that of a failed motherboard.  You could look into this and compare it to the costs and benefits of a new laptop.  Page 84 0f this guide details what is to replace the motherboard.  According to this, the part of HP for the motherboard number is 630985-001.  You might look online to see what the cost of a motherboard to a site selling online because it does not appear that HP is available.  You can can try the HP parts store because it is more recent than the surfing part.

In most cases, the benefits of a new system outweigh the costs and the benefits to repair an old.  However, third-party sites can carry enough good parts markets to switch the balance.

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