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Attention:
off the system may cause unpredictable results in the data files, and the next IPL
will take longer to complete.
a. Open the rack door.
b. Press the power button on the primary I/O drawer operator panel.
When the power-off sequence is complete, the system will go into Standby mode,
as evidenced by:
v OK displays in the primary operator panel display.
v The primary I/O drawer operator panel LED will start blinking at a slow rate.
v The CEC drawer power LED will start blinking at a slow rate.
2. Place the I/O drawer in the rear service position, as follows:
a. If you have not already done so, open the front door of the rack unit.
b. Loosen the two thumbscrews that attach the front bezel to the drawer.
c. Grasp both sides of the front bezel and pull the bezel off the drawer.
d. If you have not already done so, open the rear door of the rack unit.
e. If present, remove the two retaining screws at the rear of the drawer. See step
f. Grasp the bar at the rear of the drawer, and pull the drawer to the rear until it is
Note: Make sure that you do not damage the cables while pushing in the drawer.
3. Remove the two thumbscrews and remove the top cover from the drawer.
4. Determine the slot from which you are removing the adapter.
5. Disconnect any cables that are connected to the adapter being removed.
6. Turn the locking latch and lift the plastic stop for the adapter.
7. Carefully grasp the adapter by the edges and pull it straight out from the I/O board.
Store the adapter in a safe place.
8. Place a blank slot cover in the adapter slot and then lower the plastic stop over the
adapter bracket. Rotate the locking latch clockwise until it clicks into the locked
position.
9. If you have other adapters to remove, remove them at this time.
10. If you do not have other adapters to remove, install all covers that you removed
earlier and return the drawer to the normal operating position.
11. Plug the system unit power cable into an electrical outlet.
12. Turn on the power.
30
Installation Guide
Using the primary I/O drawer operator-panel power button to power
The primary I/O drawer operator panel power LED starts blinking at a fast rate.
B0FF appears in the primary operator panel display.
6 on page 9.
stopped by the two detents on the top of the drawer.
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