Vaio VPCSE died - revival help

Hello Vaio community,

2 days ago my VAIO VPCSE1C5E (2012, Windows 7) just would not switch on in the morning.
I left it plugged in over night, before I went to bed it was working 100%.
The battery was in a bad shape, so I had the message to consider replacement since 2 weeks.
The 500G harddrive was on its upper limit as I run modelling programs like AutoCAD and matlab.
Last thing I did before it died was installing ARDUINO :-/

The symptoms:
- When I hit the start button after taking out (and putting back in) the battery I hear the normal acceleration sound (I guess thats the CD drive) it would make when I switch it on, but only for half a second or so.
- Than I realized that the harddrive is spinning after hitting the on/ off button
- When plugged in, the indicator light tells me its charging (I replaced the battery with a new one)
- The orange/ green start light is not turning on at all
- Blackscreen, nothing happens, no signs at all
- Independent on how long I press the on/ off button, the harddrive only stops when I take out the battery
- The harddrive only starts when I hit the on/off button.

Any ideas what this can be?
Or any idea how I can test the single parts to find the failure?
Buying a new one is not really an option as I love this thing to much and just bought a SSD and new battery which I intended to put in next week....

I opened it (happy to put pics if anyone is interested) but I can't see any burned/ broken parts...

Thanks and greetings,
Jacob

 

If it doesn’t even enter BIOS (which you should see on the screen, resp hit F2 or F8 when booting), It could be some severe hardware failure caused by the broken battery.
Last Software-type resort could be Resetting the BIOS by temporarily removing it’s battery, might be something you wanna try.
Have you even tried running it without the battery installed?

 

Hey, thanks for the answer!
I tried running it without battery or pressing on button for 60 sec to completely decharge it, not working.
I tried running it without RAM ( I guess there is another one on the motherboard). I tested the fan with en ext. 5 V supply and its running. I can't see any damage.
When I start it (pressing the on/off button) without battery I can hear the CD drive trying to start and the harddrive is running. Both is powered via the motherboard. However nothing happening on the screen and the on/off light is also dead. The charging indicator light works so I guess its not the card/ energy board.
Does it make sense to reset the BIOS and what is the result of it?
Any other ideas how I could check what part it is?
How can I check if it is the motherboard - it is not supplied directly with energy?
Thanks, Jacob
(I will post my progress here)

 

It resets all BIOS settings to default.
https://www.intel.com/content/www/us/en/support/articles/000025368/processors.html

If that doesn’t work, I would consider it a hardware failure and bring it to a repair shop.

 

@jacobkey maybe try the "old" sony won't boot trick. It's worth a try. Worked on my vgn-SR

1. remove battery.
2. unplug AC adapter from laptop.
3. hold down power button for 30+ seconds.
4. install battery and plug in ac adapter.
5. boot.