Neither the author nor Overclockers.com will be responsible for any direct or consequential damages to equipment or person if this procedure is followed. Proceed at you own risk!!

What with the new BTX form factor coming out, many of you are dreading the cost of all the bits you'll need to buy to get a working BTX PC. I was looking at the BTX specifications and I noticed the motherboard connecter looked familiar. Sure enough, I called up the ATX specifications and found the motherboard connecters were similar, but not the same as the following diagram shows you:

The only difference is an extra block of four pins on the bottom.

This means with a bit of work, you can make your ATX PSU work with your BTX motherboard. First, you need an old/dead PSU so you can use part of its motherboard connecter as the extra four pins. Cut all the wires on the old PSU so you have about 5 centimeters of wire to work with on the connecter. Then, cut the old connecter with a hacksaw as shown in this diagram:

Now you have to solder the extra mini connecter to existing motherboard wires of the right voltage and splice them in. This is what you need to end up with:

Note the shapes of the plug pins and how they ensure you can only plug it in one way.

And this is how to do it: