First, find out what power supply you have, because if you only have the 525w, it will limit your choices.

Do you want nVidia or ATI-AMD?

Why do you want a new video card? What apps. are having a hard time with the nVidia 240?

Are you a gamer? What games to you want to play?

How much do you want to spend?

I would prefer Nvidia, price isn't really an issue.

I've tried to pull out my psu, but it's attached to wires inside the pc and I don't want to pull it too much (It felt like it jammed when I pulled it out by roughly an inch), it also has a nice piece of plastic blocking entry to it from the side of the pc, they sure like to hide what psu they give you.  So this is why I;ve decided to play it safe and see what cards I can get for the 525w psu.

I'm a big gamer and will try out most games, big fan of WoW (I know that doesn't require much), Mass Effect, will be getting Star Wars online when it comes out, I'm trying Rift, Fallout etc.

I've no problems with my current card, I just want to have my settings up to near full for most games and the gts 240 doesn't allow this.

Thanks for your reply.

I believe the 240 requires a 6pin power other than mobo power. I figure you can try this. The 525w and 825w PSUs have two 6pin and two 8 pin connectors. BUT on the 525w one 6pin and one 8pin are not functional. SO if you pull out the other 6 pin and plug that in and it works you have the 875w and if it does not work you have the 525w. :)

I believe the 240 requires a 6pin power other than mobo power. I figure you can try this. The 525w and 825w PSUs have two 6pin and two 8 pin connectors. BUT on the 525w one 6pin and one 8pin are not functional. SO if you pull out the other 6 pin and plug that in and it works you have the 875w and if it does not work you have the 525w. :)

Nice tip.

I had a wire called P15 (6 pin) plugged into the GTS 240.  I had 2 other wires marked P16 and P17 (both 6 pin) with a label attached to them saying they would not be active if the psu was 525.  I have plugged the P16 into the graphic cards and it appears to be working, so I'm guessing this means it's 875w?  I hope so anyway.

I don't have any 8 pins though, the P15 is a 6 pin with another 2 pin close to it, and the P16 and P16 are both 6 pin with another 2 pin attached.

I've tried to pull out my psu, but it's attached to wires inside the pc and I don't want to pull it too much (It felt like it jammed when I pulled it out by roughly an inch), it also has a nice piece of plastic blocking entry to it from the side of the pc, they sure like to hide what psu they give you.  So this is why I;ve decided to play it safe and see what cards I can get for the 525w psu.

The Aurora Service manual explains how to remove the Power Supply. It looks pretty easy. I recommend you take a picture of the full label (knowing those rail volts/amps will probably come in handy later).

Without removing it ... you might see a DP/N (Dell Part Number) on it. I think we can cross-reference that if that's all you have.

It should also say on your invoice.

eVGA makes good nVidia cards (at least they used to). If you have the 875w PS, you should be able to run a 570 ... maybe even a 580.

http://www.legitreviews.com/article/1482/16/

Yea if it says it would not be active on the 525w and it works im guessing it must be 875w. 

RIFT is a pretty demanding game.  What overall setting do you run that at and what kind of fps do you get with your current setup?

I run RIFT at medium settings, I've not played it a great deal yet, but while lvl'n solo I get 35-40 fps, this will lower in raids though.