A 970 is a fine card, and not a problem on your PSU. If you've got the right PCIe power cables, you could also look at the 390 or 390X, depending on how much money you want to spend. All would be a nice upgrade over what you've got. The 380 basically trades blows with the 960 and the 380X isn't that much better.
Selecting the right testing and assessment provider is an important decision. Count on Prometric for the right test development and delivery solutions. Prometric is a wholly-owned subsidiary of Educational Testing Service (ETS) and a trusted provider of technology-enabled testing and assessment solutions.
The CAPM is a relatively new credential, introduced in 2003 (the PMP, on the other hand, was introduced in the United States in 1984). The CAPM exam features 150 multiple choice questions that must be completed in a three hour time period at a registered testing center (like Prometric in the United States).