Going to upgrade my graphics card and power supply for my Dell Inspiron 600. Will these be good and will they fit?

Solution
For a system using a single NVIDIA Reference Design GeForce GTX 760 graphics card NVIDIA specifies a minimum of a 500 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 30 Amps or greater and that has at least two 75 Watt 6-pin PCI Express supplementary power connectors. Some of the non-Reference Design GeForce GTX 760 cards have a single 150 Watt 8-pin (e.g. ASUS GTX 760 DirectCU II OC) or two 150 Watt 8-pin (e.g. MSI GTX 760 HAWK) or one 75 Watt 6-pin and one 150 Watt 8-pin (e.g. Gigabyte GTX 760 WindForce OC, EVGA GTX 760 SC w/ACX Cooler, MSI GTX 760 TwinFrozr Gaming) PCI Express supplementary power connectors. (Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor.)

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) is the most critical factor.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

The EVGA GeForce GTX760 SuperClocked will fit in that Dell Inspiron 660 computer case.
 
funny how he said to pull the memory out seat the card and reseat it unless theres a memory limit in the bios and now I wonder if all is system memory is noe fully used due to that ?? seemed like a trick for some gateways was to remove a stick like say it had a 3 gb limit and you had 2 gb system and a 1 gb card you were safe but if you put in a 2gb card it would not boot or blackscreen but to use the 2gb card you just removed the 1 stick of ram from the board and then it worked ???

like I say prebuilts are funny and a lot of folks get stuck holding the bag on parts that don't work

got to remember dell and all sell complete computers and if the one you got don't cut it they got the new bigger better one to sell you .. they could not care less about you upgrading there old one .. that's money out of there pocket ..

you buy - you try - and hope it don't make you cry