Dell PowerEdge R905 - Manual (Page 67)

Installing System Components
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To replace the optional bezel, hook the right end of the bezel onto the chassis,
then fit the free end of the bezel onto the system. Secure the bezel with the
keylock. See Figure 3-2.
Opening and Closing the System
CAUTION:
Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your
product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized by Dell is not covered
by your warranty. Read and follow the safety instructions that came with the
product.
CAUTION:
Whenever you need to lift the system, get others to assist you. To avoid
injury, do not attempt to lift the system by yourself.
Opening the System
1 Unless you are installing a hot-plug component such as a cooling fan or
hard-disk drive, turn off the system and attached peripherals, and
disconnect the system from the electrical outlet and peripherals.
2 Rotate the latch release lock on the latch in a counter clockwise direction
to the unlocked position. See Figure 3-3.
3 Lift up on the latch on top of the system and slide the cover back. See
Figure 3-3.
4 Grasp the cover on both sides and carefully lift the cover away from the
system.