my laptop wont turn on

[daniboy]

i have a hp pavilion dv7 2111 that wont turn on. When i have the battery in the laptop it wont charge, but if i take the battery out i will show me that it charges. But i still cant turn it on, and nothing flashes. It only flashes 3 times when i try turning it on. here is a link to see the problem i have with my laptop https/www.youtube.com/watch?v=pwHFtM-5E9o

 

[boosted1g]

Are you using the oringial HP power adapter or a "replacement" one from ebay/amazon?

 

[daniboy]

i bought one from ebay beacuse my original wont work

 

[boosted1g]

Ok, well the cheap power supplies that say "replacement" on them or any generic power supply that is not the OEM one is not good for your laptop. I have seen many many of these junk power adapters damage batteries and damage motherboards (even seen some gateways and hp with some realy bad burns on the motherboard at the power port).

At this point you can try buying an OEM power supply but without being able to physicaly look at the laptop, I would give you 50/50 chance of that working (the other 50 percent chance being that the motherboard is already damaged).

 

[boosted1g]

If you still have the original power adapter make sure the volts/amps/watts is the same.

I found this OEM adapter that matches what I could find online for power requirements.
You should make sure you have a 65w battery (not a 90w)
http/www.amazon.com/HP-463958-001-Adapter-65W-463552-004/dp/B0048HK4IY

 

[daniboy]

thanks for the reply, but did you watch the video? i think its the memory module.

 

[boosted1g]

Yes I saw the battery charge light blinking.
If you check HPs support page for your notebook they say that the blink codes are used on the numlock/caps lock keys, not the front lights, especially not the battery light.
http/h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&docname=c01443371&lc=en&product=4014960&.
Im sure read about 3 blink codes = memory issue, but that is not the lights that blink.

You just get a blinking battery charging light.

Go ahead and try removing individual memory modules if you want.

The behavior you are having is that of a board that is auto shutting off to protect itself. Either the power supply went bad and is now putting off a bad power level, or the power supply fried something on the motherboard and now it is not able to send voltage to where it is supposed to..

 

[daniboy]

i found the original hp charger, but it has the same problem.

 

[boosted1g]

Did you get a different power adapter because the ooriginal one got too hot or because it stoped working?

Your motherboard is most likley already damaged.

In your video you said you tried taking the laptop apart?

 

[daniboy]

Yes i did.

 

[boosted1g]

I would double check and make sure all ribbon cables and anything you touched is put back in good.

Getting one of those tiny laptop cables only 95% can cause no boot issues and is something that even experieced techs do from time to time.

 

[daniboy]

It didint work before i opened it so i checked if something were wrong. By the way, my laptop charger has 100-240V and 65W.

 

[boosted1g]

The 100-240 is the input voltage from the wall.

The output voltage should be 18.5V since it is a 65w power supply.

Does the replacement charger even match the 18.5v and 65w?

 

[daniboy]

yes it does have 18.5v