I am trying to turn this Dell Dimension 4700C into a media box, and the video card I am looking to buy for it says it requires a 300w minimum output. The onboard power supply has a 160w max output, and I have a 400w power supply lying around that I *could* put in the 4700C. My question is: is this a good idea?
Here is the video card: http://www.newegg.com/Product/Produc...82E16814121292
And here is a .pdf of the owner's manual for the 4700C: http://support.dell.com/support/edoc.../N56841LRs.pdf
Alternatively, another video card with 1Gb onboard memory (instead of the 512MB of the other one) has no warning about minimum power source wattage. Why? Should I just buy the 1Gb one and not put in the new power supply?