Upgrade PC, changing motherboard, Power supply and Case, need help!

I am planning to upgrade my Pre-built pc soon, as it is a slimline, so I want to change the motherboard, Power supply and the case, here are what I want to change it to:

Motherboard: MSI Z77a-G43
Power Supply: Cosair CX 750W 80+ Bronze
Case: NZXT Source 210 Blue
Just for Reference
My current pc specs:
Brand: Acer
Model: XC600-i347MR81T
Processor: Intel® Core™ i5-3470 Processor 3.20GHz
Operating System: Windows 8.1 64bit
Installed RAM: 8 GB
Hard Drive: 1TB HDD
Optical Drive: DVD Burner
Graphics Performance: AMD Sapphire HD 7750 Low Profile 1 GB DDR5(Used to be a nVidia GT 620 2GB DDR3)
PowerSupply: 220W
Link to the PC:
So Will the system work if I reuse the old CPU? and will the Motherboard fit into the case and work with the powersupply? Because a friend of mine changed his old prebuilt pc motherboard, psu and case, and he re-used his old CPU, so I want to know if I could do the same.
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  1. Best answer
    Yeah, the CPU and motherboard are compatible. And the motherboard, case, and power supply are all standard ATX so they'll work fine too.

    I might recommend a power supply with lower wattage and a little higher quality (Corsair CX is acceptable, but only just). You definitely do not need a 750W unit. 450W would be plenty.
  2. Ok, maybe Ill go for a silver or gold 600 watt then like the Corsair RM 600W 80+ Gold, but everything will work? Before I pick a answer, I want to see what else pops up.
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