HP Pavilion DV7-3101sa Totally Dead

[AndyH55]

Notebook normally in almost constant use and left in 'hibernate' mode overnights, and on-charge.

After several years of use, one morning it was completely unresponsive - would not boot - NO power from battery - and green led Power Light (where adaptor plugs into the laptop) was OFF (and NO light on mains adapter unit to check power being suppied), but mains power and fuse OK. 

A replacement (new) power supply, on inserting the plug, just causes the green led Power Light to flash ONCE - then NOTHING!

I have removed the notebook's HDD, and tested via USB adapter on a second PC, and it works fine....well it's Readable (not sure/can't test if it's Bootable!).

Is this likely to be a Battery or Motherboard/other component issue?

Any help much appreciated.

[WAWood · Accepted solution]

@AndyH55 

A faulty drive would not stop the laptop from powering up, only from booting into Windows.

If it is possible, to find out the problem, you would need to be able run hardware diagnostics by pressing the Esc key repeatedly and then, when the HP Startup Menu appears, select Diagnostics (usually F2) and let it run.

If it is NOT possible, or if that does not work, then there is NOTHING more you can do by yourself -- and there is NOTHING we can do because we have no way of accessing your PC from here to run diagnostics or repair hardware.

You will need to have the PC physically examined in a service facility by folks that can run their own diagnostics to determine what is wrong with it.
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Since your PC is no longer under warranty, then it will cost you up front to have HP examine your PC. If you want to do that, you will have to contact an HP Repair or Service Center to see if they can examine the PC to determine the cause(s) of the problems, if it can be repaired, and an estimate of the repair costs.

Since you live in the U.S., here is a link to the HP Service Repair Centers:
https://www.service-center-locator.com/hp-hewlett-packard/hp-hewlett-packard-service-center.htm

Good Luck

[AndyH55]

Thank you for your reply, WAWood.

The laptop is stone cold dead.  Does not show any life whatsoever (apart from the single half second flash of the power LED when first connected); no fan sound; no flicker of the screen; nada!  Hence I wondered if the battery could be burnt out or shorted.  I do not want to leave the power adapter connected for fear of secondary damage to that (it is from another slightly newer Pavilion).

Such a beautiful display and awesome sound, it seems a shame to consign it to the bin. But it IS 10 years old. 

I WAS going to use it to practice an upgrade to Windows 10 (from 7), before I ruin my i-7 machine, and if that failed to convert it to Linux!.