For Autonomic Servers - MMS-3/5E.

Step 1 - Power down and unplug the MMS. Remove Chassis Screws (total of 7)

Step 2 Take note of connector difference between the MMS-5E vs MMS-3E

Step 3 Carefully slide out connectors (Pictured here, MMS-3E connector configuration)

Step 4 Remove Board Screws

Step 5 Swap in new Sound card, reassemble and power on