PSU Dell optiplex 755

[Trinity Edge]

Hello everybody. My question is about my mini desktop Dell optiplex 755. I'm upgrading my Graphics card to the AMD Radeon HD Sapphire 7750 Low Profile and my processor to an Intel Core 2 Quad 9400 2.66ghz. Will I absolutely need to upgrade my PSU? Or will the stock Dell PSU be fine? Thanks in advance.

 

[hp79]

Is it a SFF or the one bigger one? If it's a SFF, I'd be more concerned about the heat the graphics card outputs. Heat = power usage.

Anyways, PSU wise, I think it'll be fine. Most of the time people tend to think they need super gigantic power wattage. I have a mini-itx desktop with core i7-2600k and GeForce gtx 460. I'm doing fine with a 480W PSU. It actually never uses more than 300W even when overclocked to 4.5 GHz (from 3.4 GHz). When playing games, it uses about 200W.

 

[Hassaan War Hero]

dell's power supply wiil be enough for sure !

 

[Trinity Edge]

Thanks for the fast replies. It's the one bigger than the sff, the mid tower.

 

[Hassaan War Hero]

please chose best answer