|Full model means just that. What brand and EXACT card do you have? The power requirements vary widely. |
That series of cards pull substantial power from the 12V rail. Your power supply is rated at a total of 24A@12V. That is not nearly enough. That power supply brand is also a crappy brand that probably fudges the numbers. That said, the unit puts out all the power on the 5V rail, which is not utilized that much in modern systems. Buy a much better power supply from a reputable brand.
Post all your specs, including CPU, number of drives, etc.