The point is to draw about 500mA
@JimboZA Could be your power supply had one already built in though.
That's odd.I had to put a 10 ohm 5 watt on mine to get it to work.
No. I used a 10K having read somewhere (no idea where, now... )
CD drives draw most of their power from the 12V rail. Only the low level logic uses the 5V rail, so if the drive isn't doing anything , like reading or writing, it wont draw power from the 5V rail , which is what you need.
Hang on, the computer power supply is still plugged into the motherboard? Well, there is your 5V load.