will these parts work

[Ky_GG]

GTX 650 TI 2GB

Evolveo pulse 400 watt PSU

Asus h81m-C

Intel Pentium g3258

Corsair vengeance ddr3 1600 MHZ

Cougar ARCHON Mid tower atx case

[Ky_GG]

Do Micro ATX mobos fit in ATX Cases

[Mecami]

Do Micro ATX mobos fit in ATX Cases

It always says which types will fit in your case under specifications of any "Info-Sites"

 

Motherboard Type: mATX, ATX

So in your case (<- lol get it? "case", moving on...) yes it will fit, it simply depends on the pre-drilled holes in your case, which smaller types will fit in it.

 

Edit: Unintentional LTT reference on the LTT forums ! SORCERY !

[0x550x42]

Do Micro ATX mobos fit in ATX Cases

 

Most of them do. But still look for the specs of your cabinet...