With what you got, there are a couple things you can try. With the power board you can get a couple pin blocks and exted them by wires, kinda making your own cable. This would make a clean looking cable. The other option is just running wire from Point A to B, without the pins. It would work, but make one mess.

As for your CD-ROM, that may be a little tricky. You might have to work with the placement of the CD-ROM.

Maybe someone else has an idea on what to try?
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