This is a bit of a strange request. I have just replaced the power supply in a computer. However, it is somewhat larger than the old supply, and now the DVD drive cannot go back enough to be flush with the front of the case due to it hitting the PSU.
Is there such thing as an "L" shape power adaptor? The power plug accounts for quite a bit of space behind the DVD drive, and if there's some kind of "L" shape adaptor, I reckon the drive will go back enough.
Without spending too long on google I came across something that may work, a 90 degree molex should give you a bit more space, they're often used in small form factor cases where space is a premium. click here