Inspiron 3668 Power supply Upgrade

[diaza294]

Hey im really new to this so please bare with me. My friend installed a nvidea gtx 960 into my i7 3668 inspiron and informed me I would need to upgrade my 240w power supply in order to get it to work. I'm sorry I don't have the measurements but I could update this post after work today. I'm blind when it comes to building a gaming pc and he referred me to this forum. I'm sorry if I didn't give enough info, I'll gladly try to when I get off work. Thank you so much!

 

[RememberThe5th]

If you can measure from middle of screw to other it may fit aftermarket PSU.
Soo from 1 2
3 4

That are screws i need 1 and 2 and 1 3 measures to confirm if PSU can fit actually (it will hang a bit).

 

[The Paladin]

if your desktop at the back looks like this you may have an issue as this doesn't look like an standard ATX PSu but a BTX one.

 

[RememberThe5th]

Unless chopping away... I saw on some pictures on some models it seems wider? Not sure.

 

[diaza294]

OP here, I'm on mobile sink don't know how to reply to specific comments. But YES my desktop does look like that in the back.

 

[The Paladin]

okay then, here is the service manual for your computer https://www.manualslib.com/manual/1247209/Dell-Inspiron-3668.html
Once you open your case you will see the power supply (pointed out below with arrows) it is NOT a standard ATX size (sold in all stores) how to remove it begins at page 72 of the manual.
now all that said, your biggest problem will be to find a power supply to fit in that space and of at least 400-500w
looks like a TFX, (would have to get measurements to make sure...) PSU.

now a lead to help you find one would be this ebay auction, they have a PSu very similar to what you need, and they may be able to better help you in your search worth asking the questions in any case.
https://www.ebay.com/itm/435W-TFX0250D5W-Power-Supply-for-Bestec-Dell-Inspiron-530s-531s-Slimline-TC435/230603662910?hash=item35b10ca63e:g:T5EAAOxyyiBR7fXf
it looks like this particular power supply may fit and provide you the power you need, I would ask them first before buying it.

 

[diaza294]

Wow you went above and beyond. Thank you very much, I appreciate this immensely. I'll hope to build this next week 😀

 

[The Paladin]

I strive to help, and I like challenges in finding answers.