Hi guys, I just got a used macbook pro and would like to perform some tests on it to make sure everything is in tip top shape. I have been searching and searching around the forums, but I couldn't really get a straight forward answer on what is a good stress testing software to use for my newly acquired Macbook pro. I can't seem to get tech tools because I am not under the Apple Care Plan. Are there any out there you reccommed? I am looking for an all around test, but also something that tests the GPU. Any advice is much appreciated!