Step 1521-6
Are both I/O drawer power supply LEDs flashing?
NO Replace the power supply with the flashing LED.
This ends the procedure. Go to ″MAP 0410: Repair Checkout″ in the RS/6000 and Eserver
pSeries Diagnostic Information for Multiple Bus Systems.
YES Check internal drawer cabling from power distribution card to primary I/O backplane. See “Primary
I/O Drawer Cables” on page 481.
Replace the following, one at a time:
v Primary I/O drawer BACKPLANE
v Power distribution board
This ends the procedure. Go to ″MAP 0410: Repair Checkout″ in the RS/6000 and Eserver
pSeries Diagnostic Information for Multiple Bus Systems.
Step 1521-7
Are all SPCN cables seated firmly and connected correctly between the primary I/O drawer,
secondary I/O drawers, and CEC drawer?
NO Fix the cable connections.
This ends the procedure. Go to ″MAP 0410: Repair Checkout″ in the RS/6000 and Eserver
pSeries Diagnostic Information for Multiple Bus Systems.
YES Go to “Step 1521-8” on page 87.
86 Service Guide
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