Black Box AC470A Manual page 11

CHAPTER 4: Installation
Step 8
Secure the Internal Audio System unit to your PC using the four screws
provided with the package.
Step 9
Replace and resecure your PC's CPU housing cover. Then switch on power
to the computer.
Step 10
Check the front-panel LEDs on the Internal Audio System to ensure that
they're lit. If they aren't, remove the cover from your PC and confirm that all
the Internal Audio System connections have been made and that the
connectors are properly seated.
If the LEDs still don't light, call Black Box for technical support.
11