790, GPU upgrade compatibility?

Meyounhi,

The minimum PSU to the run this card should be 300w.

Minimum recommended PSU is 300w: http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-1050-ti/specifications

1050 TI uses too much power.

Single Slot LOW PROFILE 40W cards that have both brackets work fine.

I suggest a specifc GT1030 card instead.

( GIGABYTE GeForce GT 1030 GV-N1030D5-2GL  )

https://www.amazon.com/GIGABYTE-GeForce-GV-N1030D5-2GL-Computer-Graphics/dp/B071DY2VJR/

There are also TONS OF FAKE Cards out there that do not work because they are re flashed lies.

https://www.youtube.com/watch?v=MLpUcRJoHyw

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@Meyounhi wrote:

Hello guys, im planning to buy Dell optiplex 790 i7 however before i buy it i need to know if its upgradable into gaming pc. because im planning to install GTX1050TI and do i need also to upgrade PSU with this type of graphics card installed to computer??? plsss help. i need to know this week.

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I understand what you are try to do, but do yourself a favor ... and instead buy a model in a Tower-Case. It should have a larger Power-Supply (hopefully, closer to 400-500watts) and more room to keep a nice GPU cool.

Notice they don't sell the Alienware x51 any more. It was always Power and Cooling challenged. 

790 Tower doesn't have 300W power supply.

http://www.dell.com/downloads/global/products/optix/en/optiplex-790-tech-guide.pdf

265W max

So can I buy GIGABYTE GeForce GT 1030 GV-N1030D5-2GL Low Profile 2G or not ?

Gigabyte asks for 300W and Optiplex 790 only gives 265W.

What card do you recommend ?

I'm using PNY  GT 1030 just fine with stock power supply.

https://www.dell.com/en-us/shop/accessories/apd/a9763687

If you upgrade the PSU, AND REMOVE the HDD cage you can run any gpu you want. I ran an Asus Turbo gtx 1070 on a 790 MT with upgraded PSU.