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Powered old laptop with PSU PC

I found this on my local online shop
https://www.tokopedia.com/mangstapshop/molex-male-female-to-dc-5-5mm-x-2-1mm-plug-pc-led-strip?refined=true&whid=0
I have two old laptops with spec
i7 6700hq with Nvidia GTX960m
and
i7 4720qm with Nvidia GTX 750m
that is not in use because the power bride adapter was broke
can I use a power supply instantly for powered the laptop?

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3 minutes ago, v17 said:

can I use a power supply instantly for powered the laptop?

Most likely not, as most laptops (especially ones with GPUs, requiring more power) use a higher voltages (16V-20V) than ATX PSUs provide (max 12V).

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It really depends on the laptops and their power requirements. In order to work, they would need to draw less than 54w (the rated power of the Molex connector) and use either 5v or 12v power. Odds are neither of those are met, so you'd have to do something really funky to get it to work. 

 

Would it be possible to get it to work? Absolutely, there are voltage step-up circuits and stuff you can buy, and you can wire up multiple Molex or a PCIe power connector to power the adapter instead. But is that worth it? Probably not, since it's a lot of wiring, and you can probably just buy a new power brick on eBay for the price you'll spend for everything to get it to work.

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That's not going to be a plug and play solution as has already been outlined above. Your laptop, most likely, uses a 19V (or more) power supply which you're not going to get out of a PC PSU without some additional hardware but then at that point, just get replacement power bricks, they can be cheap on Amazon.

5800x/3090

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