Lenovo ThinkSystem DM3010H Hardware Installation And Maintenance Manual page 71

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1. If you are not already grounded, properly ground yourself.
2. Loosen the hook and loop strap binding the cables to the cable management device, and then
unplug the system cables and SFPs (if needed) from the controller module, keeping track of
where the cables were connected.
Leave the cables in the cable management device so that when you reinstall the cable
management device, the cables are organized.
3. Remove and set aside the cable management devices from the left and right sides of the
controller module.
4. Squeeze the latch on the cam handle until it releases, open the cam handle fully to release the
controller module from the midplane, and then, using two hands, pull the controller module out
of the chassis.
5. Turn the controller module over and place it on a flat, stable surface.
6. Open the cover by pressing the blue buttons on the sides of the controller module to release
the cover, and then rotate the cover up and off of the controller module.
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