Changing CPU (and some other components)

[ClassicYeti]

Hello Forum,
I am here to make this thread to ask if I can switch out my motherboard, processor, and ram and see if it would work with my PC. So far, all I really have is a stock PC I bought at Best Buy with a dedicated Nvidia GeForce GTX 750 Ti added in it myself.

The PC I have now (excluding the GPU I added): http://www.bestbuy.com/site/asus-desktop-amd-a10-series-8gb-memory-1tb-hard-drive-gray/6968138.p?id=1219667166556&skuId=6968138

(The PC was updated in their stores, the old version I have has an A10 6700 instead of 7800)

My questions I have at the moment are:
-Will my new components fit in the case?
-Do I need to upgrade the stock 300W PSU?

The new components I might get:
-i5 4460 or i5 4690k (Not too sure at the moment which one I want)
-MSI H81M-E33 Mobo
-Kingston HyperX FURY 8GB Kit (2x4GB) 1866MHz DDR3 CL10 DIMM

Thanks everyone.

 

[ajhockey3]

1. Look at the mounting, If it uses standard mouting than maybe, But keep in mind the power button connectors are almost always not standard and the IO sheild could be welded in.
2. Yes if your buying a GPU 300w of a crappy OEM PSU will not cut it
3. All those parts (mobo,cpu,ram) are compatable just not sure on the case

 

[ClassicYeti]

1. Look at the mounting, If it uses standard mouting than maybe, But keep in mind the power button connectors are almost always not standard and the IO sheild could be welded in.
2. Yes if your buying a GPU 300w of a crappy OEM PSU will not cut it
3. All those parts (mobo,cpu,ram) are compatable just not sure on the case

Thank you for the reply, how do I check the mounting and what type it is?