HELP! Power supply wont fit

The Antec CP-1000 features a unique design with an advanced cooling system, compatible with some of Antec's most cutting-edge Gaming and Performance One enclosures,only the Twelve Hundred, P183 and P193

Any help for my problem?

not unless you get a huge case

RMA it

or try it outside the case

Both the PSU and the Cabinet are made to specific form factors, I would suggest you remove the Motherboard all together.

Mount the PSU, pleases check if the holes match perfectly and then Mount the Motherboard in.

Most probable the Front Panel connector pins might be blocking the PSU from going in.......

Try It out.... and let us know.

For mounting the PSU on the outside...... the whole rig is going to have to be Modded..... and thats a long procedure. Unless you don't mind cutting the side panel or the top panel and drilling a few holes there to get the PSU screwed onto it and the cables going all the way down from the top or the side......

It's painstaking but not impossible.....

Another thing try to remove the Four Rubber studs that are fixed at the base of the Cabinet and see if it fits in.......

ouch... I'd agree and say take the mobo out and then try insert the PSU. If that doesnt work... and you dont want to exchange the case and PSU, get a mini atx mobo

the antec CP range are specifically made on the antec only CPX platform for the antec full tower cases so exchange the case for an antec full tower like the antec 1200/p183/p193 for which that power supply is made for or return the power supply and get a normal atx platform power supply

I RMA it. THis sucks. How WF am I able to tell if it fits the case or not. MY case is a facking full tower BTW

Just don't into buying any computer hardware..... ANY...... always check for compatibility issues from the makers website.
Thats the golden rule..... I know the boxes the stuff comes packed in, and the stuff inside looks awesome....... and it's like , If I could just have it, I would, ...... but thats the worst that can happen, buy and expensive piece of equipment and finally it just doesn't all fit in together.......
Careful, take your time choosing equipment by quality and compatibility, and then ask when you're in doubt.