Is the prebuilt pc's motherboards standard size?

[krit2]

Ok, so i am planning on changing by prebuilt pc's case since the case only have one rear fan and its running very hot at full load. I do know how to built a pc but i am not so sure with motherboard sizes and i am not sure whether the the new case that i am buying will support my prebuilt pc.

Or is it that the prebuilt pcs also comes with a standard atx size motherboards. So all I need to do is taking parts apart and built it into the new case?

My PC specs and Model number:
HP Envy 700-340d
i7 4790 (Non-K)
GTX 745 (OEM)
http://h20564.www2.hp.com/hpsc/doc/public/display?docId=c04317589

 

[frostedtim]

Most of your parts should go into a mid sized tower. Not sure about the power supply, but presumably if HP uses a standard PSU, then it could work in a third party case as well.

 

[krit2]

Most of your parts should go into a mid sized tower. Not sure about the power supply, but presumably if HP uses a standard PSU, then it could work in a third party case as well.

So... the motherboard will fit perfectly into the case and the screw will align with the hole on the case right??
What do you mean by mid-sized tower?

Its ok. I do have Corsair CX600M lying around also.

 

[frostedtim]

Most of your parts should go into a mid sized tower. Not sure about the power supply, but presumably if HP uses a standard PSU, then it could work in a third party case as well.

So... the motherboard will fit perfectly into the case and the screw will align with the hole on the case right??
What do you mean by mid-sized tower?

Its ok. I do have Corsair CX600M lying around also.

The motherboard should fit. It is uATX form factor. Most standard mid size tower cases should accept this. You can get a full size tower, but it will cost more and take up more space than you need.

That Corsair PSU will work if you need it on this motherboard. Like I said though, not sure about the one that comes with your prebuilt system. If that PSU fits the same shape and has same mounting points as the Corsair, then you should be able to transfer it as well.