Compaq ProLiant 2500 Maintenance And Service Manual page 37

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Removal and Replacement Procedures
2-24
MSG003EPS
Figure 2-23. Removing the Drive Cage
3. Label and remove all hard drives from the drive cage.
4. Remove the four retaining screws from the drive cage.
5. Pull out the drive cage with backplane board.
Reverse steps 1 to 5 to replace the drive cage and backplane board.
CAUTION: Be sure to label the drives before removing them
so that they can
be replaced in their original positions. Failure to do so will
result in permanent data loss.