IBM iSeries Series Hardware Problem Analysis And Isolation page 186
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9. Have you removed all of the power supplies one at a time?
v Yes: Perform the following:
a. Remove the new power supply that was installed in step 8 (See page 173), and reinstall the
original power supply.
b. Replace the BACKPLN (see symbolic FRU "BACKPLN" on page 284).
This ends the procedure.
v No: Remove the new power supply that was installed in step 8 (See page 173), and reinstall the
original power supply. Then, repeat step 8 (See page 173).
10. Perform the following:
a. Power off the system.
b. Reinstall all of the cards you removed in step 3 (See page 173).
c. Power on the system.
Does a power reference code occur?
v Yes: Continue with the next step.
v No: Go to step 13 (See page 174).
11. Perform the following:
a. Power off the system.
b. Disconnect one of the cards you connected in step 10 (See page 174).
c. Power on the system.
Does a power reference code occur?
v Yes: Continue with the next step.
v No: Exchange the last card you disconnected in this step (see Remove and replace procedures).
This ends the procedure.
12. Have you disconnected all the cards?
v No: Repeat step 11 (See page 174).
v Yes: Reinstall all the parts and go to "Analyze power problems" on page 31.
This ends the procedure.
13. Perform the following:
a. Power off the system.
b. Reconnect all of the I/O devices (tape, diskette, or disk units) that you disconnected in step 3
(See page 173).
c. Power on the system.
Does a power reference code occur?
v Yes: Continue with the next step.
v No: This ends the procedure.
14. Perform the following:
a. Power off the system.
b. Disconnect one of the I/O devices you connected in step 13 (See page 174).
c. Power on the system.
Does a power reference code occur?
v Yes: Continue with the next step.
v No: Exchange the last I/O device you disconnected in this step (see Remove and replace
procedures).
This ends the procedure.
15. Have you disconnected all the I/O devices?
174
iSeries: iSeries Server 270, 800, 810, 820, 825, 830, 840, 870, 890, SB2, and SB3 Hardware Problem Analysis and
Isolation
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