American Megatrends EZ-Flex User Manual page 30

Step 4 Connect the Power Supply,
Continued
Cutting Keys
The power connectors are keyed for proper installation.
However, with some connectors, keys may have to be
removed. You may have to cut Key 6 (last key on the right)
on the top of the PS002 connector, key 3 (matches Pin 4)
on the top of PS001, and key 5 (next to last on right) on the
top of PS003 (if used). See the following graphic:
Chapter 4 Installation
24