Dell XPS 420 PSU

Looks like (from the photos) any standard atx ps should fit. Your choice might include a cable select ps, since some premium ps have extra long cables, which may have to be tied down out of the way. If you live in the states, I would wait for black friday deals before buying. I always find a ps or case nearly free after rebate at Fry's. I try to use only the following brands: antec, enermax, corsair, seasonic, or pc power and cooling. A quality unit of about 600 watts should work fine for any single video card. Check fatwallet, slickdeals, newegg, and fry's for deals.

All I can add to that great advice is to google black friday and look for other sales sites.
Retail is hard hit this year and prices will be as low as they can get them.

hi, you said that dell told you you could only upgrade to 425w on your psu on xps 420, i have this same computer and want to get the 9800gtx+ in my syetm but for this i need a better psu

so i was wandering did you go ahead and upgrade past 420w and if so what did you upgrade too and have you had any problems

please email me with you responce at: liascm@hotmail.co.uk

thanks

Hey guys,

I have the same PC. What I did was ordered from http://www.pcpower.com/ and went under Dell compatible power supplies and ordered the 500 watt one that's capable with the XPS 420. Then ordered the GeForce 9800GTX +. Hope this helps.

Yeah here is one example that may fit your needs.
http://www.pcpower.com/products/power_supplies/dell/

There is also a tab for MB Compatibility.

I've been arguing with Dell too about the power supply in my XPS420. I ordered an 8800GT and only got a 375W PS. It clearly says on Nvidia's website that the minimum PS requirement for the 8800GT is 400W. I can't even overclock the card let alone upgrade. I just can't convince them that they're wrong! Not to mention, it also has a quad-core, sound card, tv tuner, 3 fans, etc. Is 375W enough to run all this hardware at its full potential?