IBM System Storage EXP2512 Express Storage Enclosure, Installation, User'S, And Maintenance Manual

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13. Replace the midplane assembly in the enclosure chassis:
a. Grasp the midplane assembly with two hands and hold it at a 45° angle.
Midplane assembly
Tab
b. Insert the three tabs on the midplane assembly into the tab holes in the
enclosure and rotate the front of the assembly down.
14. Secure the midplane assembly to the chassis on both the right and left sides
of the enclosure by using the four screws that you removed in step 9 on page
38.
15. Insert the four screws that secure the midplane assembly to the enclosure on
both the right and left front flanges by using the four screws that you removed
in step 8 on page 38.
16. Turn the enclosure on its side with the bottom facing toward you and insert the
two screws on the bottom of the enclosure by using the two screws that you
removed in step 7 on page 38.
17. Reinstall the ESM and blank filler panel (see “Replacing an ESM” on page 35).
18. Reinstall the two power supplies (see “Replacing a hot-swap power supply” on
page 36).
19. Reinstall the hard disk drives making sure that each drive is inserted back in
the same slot from which it was removed (see “Replacing a hot-swap hard disk
drive” on page 30).
20. Power-on the enclosure (see “Powering on the EXP2500” on page 21).
21. Check the LEDs to make sure that the enclosure is fully operational.
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System Storage EXP2512 and EXP2524: Installation and Maintenance Guide