(02-22-2013, 12:27 PM)Alfred Wrote: I want recommend followings Nvidia GeForce GTX 690, Nvidia GeForce GTX 680, AMD Radeon HD 7970 and
Nvidia GeForce GTX 670.

(02-18-2013, 03:03 PM)Brosive Wrote: Sorry for bumping, I didn't feel the need into making a new thread. Anyway, I found out that my motherboard doesn't support power supplies that are more then 450 watts. While searching the internet I read somewhere that I could put in another power supply that is under 450 watts and that would work. Would that really work, I really need this new graphics card.

(02-22-2013, 02:55 PM)plutomaniac Wrote:

(02-18-2013, 03:03 PM)Brosive Wrote: Sorry for bumping, I didn't feel the need into making a new thread. Anyway, I found out that my motherboard doesn't support power supplies that are more then 450 watts. While searching the internet I read somewhere that I could put in another power supply that is under 450 watts and that would work. Would that really work, I really need this new graphics card.

That does not exist. Motherboards do not have power supply limitations. Even if you had a 20pin power supply it would work at a 24pin motherboard. And no you can't have 2 power supplies just like that.

For a GTX 660 and a non overclockable i7 you don't really need anything more than 550-600W as other said previously. When it comes to psu's prefer Corsair, Seasonic and Thermaltek. If you get one from these brands it should also have a good efficiency (80 or more).

Spoiler below!

Spoiler below!

(02-22-2013, 03:27 PM)plutomaniac Wrote: Well this is an OEM case so you should be careful with some things. Some years back HP would ship computers with some custom longer power supplies but I don't think dell or anyone does that anymore. The PSU is 460W which might be ok. Also the system must be very new right? It has Windows 8 and new gen graphics cards.

Edit: Nah, the 7570 is very low-end gpu so it must draw way less power. Yes if I were you I would go for a bigger power supply too. 550-600W should be just fine for even a 680.

Edit 2: Also depending on how well ventilated your system is you should choose between a blower or a oper-air style graphics card. If your system is not well ventilated go for a blower which exhausts the air from the back. Open-air are non-reference cards, maybe preoverclocked, with better cooling, more quite etc (usually)...

Reference(blower):

Spoiler below!

Custom(open-air) <-- prefer this unless the case is badly ventilated:

Spoiler below!

(02-22-2013, 05:17 PM)plutomaniac Wrote: Your case has one blue 120mm front fan. You could add another blue rear 120mm one so that the air would insert from the front of the case and exhaust from the back. However, if you don't do any overclocking and the cabling is nicely done I don't think you need more as they make more noise that way.