Removing the Cover
Before you begin:
Locate the cover lock key.
Read “Safety Considerations” on page 4-2 and “Handling Static Sensitive
Devices” on page 4-3.
Note: The floor stand is not shown in some of the following steps to better illustrate
the important details. It is not necessary to remove the floor stand when you
remove the system unit cover.
1. Unlock the cover lock and slide the drive bay cover all the way to the left.
2. Remove any media (diskette or CD) from the drives.
3. Shut down programs as described in your operating system documentation.
4. Turn off all attached devices and the system unit.
Note: If you are upgrading the processor cards in a Model 240, you must first
record the level of firmware installed in your system unit. See Chapter 3,
4-4
7043 43P Series User's Guide
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