New GPU (~$200 budget for GPU) Dell xps420

[Shumiry]

Hello,
I'm looking to upgrade my system with a new GPU and some RAM.
PURCHASE DATE: ASAP
USAGE: Gaming
CURRENT GPU and PS: ATI Radeon HD 2400 Pro (40 SM4.0 525MHz/450MHz 16% OC, 128MB DDR2 1 GHz 64-bit, PCIe 1.0 x16)
375W Dell PSU (I think 5v) Here is a screenshot of the label.(http://www.amazon.com/gp/product/images/B0039OHV2O/ref=dp_otherviews_1?ie=UTF8&img=1&s=miscellaneous)
OTHER: MOBO is Dell 0TP406
CPU is Intel core2 Quad CPU Q6600 @ 2.4GHz (4C 2.4GHz, 2x 4MB L2)
RAM is 4x Hynix HYMP112U64CP8-s6 1GB DIMM DDR2 PC2-6400U DDR2-800 (5-6-6-18 3-24-6-3)

According to what I've found, I can have a max of 8GB RAM. I'm obviously going to be a little flexible on the budget. My sister just bought me Diablo 3 and I can't even run the game right now.

 

[drums101]

if its a standard size psu then I would get a 6870 gpu and a new 450watt or higher psu....if its not a standard psu you are better off getting a 7750 gpu and living with that. side note what resolution would you be playing the game at?

 

[geekapproved]

I'd suggest a HD7750/7770 for that psu.

 

[Shumiry]

I'd like to be able to play at as high of a res as possible while still seeing smooth gameplay. As far as the new PSU (yes, it's the standard PSU for a Dell XPS420) What would you recommend?

 

[Shumiry]

if its a standard size psu then I would get a 6870 gpu and a new 450watt or higher psu....if its not a standard psu you are better off getting a 7750 gpu and living with that. side note what resolution would you be playing the game at?

Here's what I've put together.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182200
Rosewill Green Series RG630-S12 630W Continuous @40°C,80 PLUS Certified, Single 12V Rail, Active PFC "Compatible with Core i7,i5" Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150521
XFX Double D HD-687A-ZDFC Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231122
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model F2-6400CL5D-4GBPQ

If I've read my MOBO specs correctly, it only supports DDR2 RAM, so I'm a little gimped in that department, but with those 4 2GB sticks, I'll still be going twice as fast as I am now. I'm not entirely sure if that PSU is even compatible with my system... Any feedback would be appreciated.
Lastly, if I'm already going this far, would I be better off to grab a new MOBO as well which would support better RAM? Although this is already getting a little expensive... >_<;

 

[drums101]

in all honesty I would say drop the ram...4gb of ddr2 is good enough...If I was you I would rather save that money and put it towards a new system later on down the road...ddr2 is expensive now im surprised that you found it that cheap....as far as the psu and video card those look good. the only thing that you need to worry about is to make sure that the psu will fit in the case that you have open up your case and take measurements of the dell psu that is in there and compare them to the psu you wanna buy...if they are the same or very close it will work...dell likes to use proprietary parts so it might not fit

 

[Shumiry]

in all honesty I would say drop the ram...4gb of ddr2 is good enough...If I was you I would rather save that money and put it towards a new system later on down the road...ddr2 is expensive now im surprised that you found it that cheap....as far as the psu and video card those look good. the only thing that you need to worry about is to make sure that the psu will fit in the case that you have open up your case and take measurements of the dell psu that is in there and compare them to the psu you wanna buy...if they are the same or very close it will work...dell likes to use proprietary parts so it might not fit

Excellent. I took the measurements, and looked them up online, and they're nearly identical between the two PSU's. The difference is likely due to my inaccurate measuring, and they're within .3 inches of each other, my personal measurements being the largest. Thanks a ton for all your help!

 

[Shumiry]

Best answer selected by Shumiry.

 

[drums101]

no problem man hope it works out...putting aftermarket parts into a dell case can be a pain in the a**