[NAME]  How does PSU wattage relate to required wattage of a card? In general, if you look at the specs of a discrete GPU card it will suggest a recommended Minimum System Power Requirement in watts. Obviously, this requirement assumes a typical computer configuration that does not have additional devices that may require more power.  Also how do i find the specs of the PSU in my preset Dell Desktop? Assuming your PC still has the original as-built system configuration, you can use the Service Tag to look up the configuration on the Dell support site. Enter your Service Tag and click Search, then on the page that is next displayed, click on 'View product specs' under 'Quick links'. The System Configuration will be displayed and in the list is the part number of the power supply something like 'X94XT' with a description..For the X94XT power supply, it is rated at 460W.
Hi! I recently was gifted a XPS 8910 that apparently had a graphics card issue. After turning on the machine and resetting it to factory settings the computer is running great. I want to upgrade the GPU to a higher quality NVIDIA that will allow me to do more on the machine. What kind of research do I need to do before I purchase a new graphics card. As well, I have heard that you can buy a card that uses too much wattage for the power supply. How do I avoid that and buy a card that my machine can handle as is? 
XPS 8910-i5 GPU Upgrade