Dpac; Drvswch; Dskdrv; Dsktry - IBM iSeries Series Hardware Problem Analysis And Isolation

23. Perform the following:
a. Power off the system.
b. Remove one of the regulator cards that was not previously swapped indicated in this table for the
model selection for the SRC that was in steps 1 (See page 332) to step 22 (See page 334) that
sent you here and install a new one. See the Type, model, and part number list for part numbes.
Number
1201/1401
1202/1402
1203/1403
1204/1404
1205/1405
1206/1406
1207/1407
c. Power on the system.
Does the system power on?
v Yes: Continue with the next step.
v No: The regulator you removed in this step is the failing item.
This ends the procedure.
24. Have you swapped out all the regulators?
v No: Perform the following:
a. Power off the system.
b. Remove the new regulator where installed previously and install the original regulator.
c. Repeat step 23 (See page 335).
v Yes: This ends the procedure.

DPAC

For use by authorized service providers.
The two port adapter cable (P/N - 21F9345) is the failing item.

DRVSWCH

For use by authorized service providers.
The address switches on an Optical Disk Drive in the Optical Library need to be checked and verified.
Refer to the All 3995 Publications and Documentation

DSKDRV

For use by authorized service providers.
The disk drive and logic card in a migrated expansion tower may be failing.
See the DSKDRV symbolic FRU in the Migrated Expansion Tower Problem Analysis, Repair and Parts
manual on the V5R1 Supplemental Manuals web site

DSKTRY

For use by authorized service providers.
A disk unit tray or a disk unit holder in a migrated expansion tower may be failing.
Model
840/SB
840/SB3
840/SB3
840/SB3
840/SB3
840/SB3
840/SB3
for FRU isolation instructions.
Regulator
R1, R2
R4, R5, R6
R6, R7, R8
R9, R10
R11
R20
R23 (clock card)
Web site for more information.
Analyze hardware problems
335