Question about replacing a PSU and a GPU

[john129pats]

I got a Dell XPS 8300 as a gift while back and I want to replace the graphics card, but I may need a new power supply. At the moment, I have a 460w that came with it, but I want to replace my gtx 560 ti oem with a gtx 660 ti.

This is the model in my computer:

http://www.amazon.com/Genuine-Dell-Systems-Compatible-Numbers/dp/B009G28TOW/ref=sr_1_1?ie=UTF8&qid=1360299907&sr=8-1&keywords=H460AD-00

This is the one I want to replace it with:

http://www.amazon.com/Corsair-Builder-Watt-EPS%C2%A0-CX600/dp/B0092ML0OC/ref=sr_1_2?s=electronics&ie=UTF8&qid=1360303375&sr=1-2&keywords=CORSAIR+Builder+Series+CX500

Is it possible, and do I need to do anything special to replace it?

 

[manofchalk]

It will work just fine, and nothing in paticular needs to happen to do it. Should just be a matter of pulling the old PSU out, putting the new one in and connecting everything.

 

[john129pats]

Do you think I will even need a new PSU? Would a 660 ti work with a 460w power supply?

 

[manofchalk]

Think the real issue will be of the PSU will have the necessary connectors than if it has enough wattage.
But yea, I would replace the PSU. The PSU's put in prebuilt systems are never that great and PSU's degrade over time (though I suspect from the CPU its under 2yrs old, so wouldnt have degraded too badly)

 

[EldritchOnRye]

You can almost guarantee that the Corsair PSU will also provide more stable, cleaner power with better longevity than that Dell PSU and that's just as important as wattage. A lot of cheap PSUs advertise higher wattage than can actually be delivered and while the 660ti isn't a high draw card may over draw the Dell PSU even if it has the connector.