Hello Badpilot2, I have also built an AMD system, and looking at what you got you have a pretty solid build I would make some adjustments and I will list them below in the list provided
1. (mobo)Gigabyte GA-970A-UD3P AMD Socket AM3 = This would be fine to stick with
2.(cpu) AMD FX-6300 6-core processor = this is good to stick with
3.(gpu)Sapphire Radeon R9 270X 2GB = This will play Arma3 just fine
4.(psu)EVGA 500 W1 = I would get a bigger PSU, This could be a huge limiting factor in your build. More Wattage is better than barely there or not enough, It will either burn our your components or you will burn out your PSU and will need to spend more money anyway to get a new one.
I would look at the following:
- Thermaltake PS-TPD-0850MPCGUS-1 850W
- Thermaltake PS-TPD-1000MPCGUS-1 1000
Or something Similar to those, I know those specific ones are kind of expensive, but in the long run, these will do you well.
5.(ram)Crucial Ballistix Sport 8GB Kit (4GBx2) = up your memory to 16 at the minimum, You will thank me later I promise
6.(storage)Seagate 1TB Desktop HDD SATA = That drive is a good drive to get, I have no problem with Seagate, I would agree with Funar, "In fact I need to get an SSD also." But it is not necessary.
You could look at something like this:
AMD Radeon SSD Radeon R7 2.5" 120GB
They make bigger ones, but that one is less that $100, there are more than likely other drives here that are cheaper.
7.(case)Bit Fenix Comrade = When you look at your case, Think of your cooling solution. How are you cooling your CPU/MOBO/GPU. If your case does not fit the cooling solution you would like to go with you need to rethink this piece. Do your research on cooling, I promise, you will thank me for this one. Explore your options and once you have figured out your cooling, then look at cases. BTW Stock coolers are crap ..... they barely do the job. And they are CRAZY LOUD.
If you know of a better Mobo that's not ridiculously expensive please let me know...under 120$
I hope this helps.