M3 hexagonal standoffs, 4
Red circles ( )
M3 screws, 6
Blue circles ( )
e) Grasp the PCBA and disconnect it from the sheet metal.
Step 5 Disconnect the remaining components from the PCBA.
a) Using the T10 screwdriver, remove the M3 screws for the top heatsink.
Cisco UCS X9508 Server Chassis Installation Guide
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Installing and Removing Components
Recycling the UCS 9108 25G IFM PCBs