Map 1521: Cannot Power On the Primary I/O Drawer, Operator Panel
Does Not Show OK Prompt
Step 1521-1
Attempt to power on the primary I/O drawer (see “Powering Off and Powering On the System” on page
415)
Does the primary I/O drawer power on?
NO Go to “Step 1521-2.”
YES This ends the procedure. Go to ″MAP 0410: Repair Checkout″ in the RS/6000 and Eserver
pSeries Diagnostic Information for Multiple Bus Systems.
Step 1521-2
Look at the power supply LEDs at the front of the primary I/O drawer.
Is the primary I/O drawer equipped with two power supplies?
NO Go to “Step 1521-3.”
YES Go to “Step 1521-5.”
Step 1521-3
Is the power supply LED flashing?
NO Go to “Step 1521-7” on page 86.
YES Go to “Step 1521-4.”
Step 1521-4
Use the information in the “I/O Drawer and Power Supply LED Status” on page 25 to answer the following
question.
Is
the power supply LED blinking quickly?
NO Check the SPCN cabling.
Check internal drawer cabling from power distribution card to primary I/O backplane. See “Primary
I/O Drawer Cables” on page 481.
Replace the I/O drawer power supply.
Replace the primary I/O drawer backplane.
Replace the I/O drawer power distribution card.
This ends the procedure. Go to ″MAP 0410: Repair Checkout″ in the RS/6000 and Eserver
pSeries Diagnostic Information for Multiple Bus Systems.
YES
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.
Step 1521-5
Is there a power supply with a flashing LED?
NO Go to “Step 1521-7” on page 86.
YES Go to “Step 1521-6” on page 86.
Chapter 3. Maintenance Analysis Procedures 85
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