There are a number of manufacturer's that make FM2+ boards and each company have a varying degree of SKU's so the first question is which motherboard do you have? The reason for asking would be due tot eh fact that some coolers can accept the bundled stock backplate or mounting mechanism while some mounting mechanism's are proprietary like that found off ASRock's boards since there is a chip located at the base of the motherboard preventing a lot of aftermarket coolers from going on that motherboard.
The next question is, what are the make and models of the rams that you have? Often the rams height can cause an issue and when you factor that in with the above made concern, the cooler will only go in in a certain orientation or direction.
Third question, did you realize that your APU has a rated TDP of 100W's? I would look into
Be Quiet!'s Shadow Rock LP cooler if the budget permits. On my ASRock A85x-itx with an A10-6800K it can only accept the cooler I've mentioned prior primarily due to the chip under the processor socket and the height restrictions of my case.
If we are to suggest a cooler regardless of the above questions, then you'd be fine with the Deepcool Gammaxx 300 since it has an advertised rated 130W TDP heat dissipation and is 135.7mm tall.
The cases width is 187mm.