Yamaha CD Recordable/Rewritable Drive CRW3200 Owner's Manual page 29

Preparing the CRW3200E Drive
5
Connect the 4-pin internal power cable of the computer
(+12V and +5V) to the power connector on the rear panel of
the CRW3200E drive.
Top
Bottom
Note
The 4-pin internal power cable cannot be connected if it is upside down. If the
connector does not connect easily, check that it is in the correct direction.
6
Tighten four screws which fastened by hand.
7
Attach the computer cover and reconnect the peripheral
devices and cables as before.
21
Power connector
4-pin internal power cable