I purchased a new video card without knowing that I would need a better power supply to support it and without realizing that the card may not even fit inside my computer case. On the box there is a written requirement: "450 watt or greater power supply with a minimum of 24 amps on the +12 volt rail." My current power supply is 300 watts so I need to buy a new one, but advertising does not list amperage on the +12 volt rail, it only lists wattage. Can I expect to get the necessary amperage if I buy the necessary wattage? Also, How can I know if the video card and power supply will even fit inside my computer case?
Here are my systems dimensions:
Model Number: DX4860
I have not opened the box for my new video card yet. I could just open it and see if it fits but I would like to know if I can get this information without doing that first. It is an EVGA Nvidia GTX 660 ti, Product Number: 02G-P4-3660-KR
Okay, I did some looking around and finally found some images of the interior on newegg. Assuming all DX4860 models use the same chassis, you should be just fine to install a new PSU and video card. The PSU looks to be a standard ATX form factor, and it looks there's actually a ton of clearance for the GPU length, which surprised me.