I just thought I'd let my fellow XPS 420 owners know that I've just purchased an EVGA GeForce GTX 260 Core 216 Superclock Edition and it works perfectly with the 425W PSU that ships with the XPS. I was worried that the PSU may not have enough power to power the card but after speaking to some Dell experts on the Dell Community forum I was told that the 425W is the power supplies standard wattage and not its peak (which is what most PSUs are actually rated at). I've been testing the card for hours now without issue, and can throughly recommend the upgrade if you're interested. Cheers
just so you know, not all XPS 420s have the 425W power supply. some have a 375W. it depends on the video card they ship with the computer. mine came with a 375W and a 8800GT. i got a gtx 260 and replaced the power supply too. maybe it woulda worked without it, but i got a 630W in case any future card i get needs a lot of power.
What is the total power draw for the 12v rails? If PSU power is seriously this underrated, I have an incentive to upgrade to a HD 5850 on my current 400W Corsair.
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