Lenovo 7099U1U, Hardware Maintenance Manual

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Figure 38. Drive bay locations
1
Bay 1 - Optical drive bay (with an optical drive installed)
2
Bay 2 - Slim card reader drive bay (with a slim card reader installed in some models)
3
Bay 3 - SATA hard disk drive bay (with a 3.5-inch SATA hard disk drive installed)
Removing the computer cover
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the
ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre
Safety and Warranty Guide , go to:
http://www.lenovo.com/support
This section provides instructions on how to remove the computer cover.
CAUTION:
Turn off the computer and wait three to five minutes to let the computer cool before
removing the computer cover.
To remove the computer cover, do the following:
1. Remove all media from the drives. Then, turn off all attached devices and the computer.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the power cord, Input/Output (I/O) cables, and all other cables that are connected to the
computer.
4. Remove any locking device that secures the computer cover, such as an integrated cable lock or
a padlock.
Chapter 9
.
Replacing FRUs (Machine Types: 0889, 5023, and 7844.)
101