MAP 1523: The SPCN Error Codes Table Directed You Here and theError Code is 1011 1B0xA base system power supply is reporting a load fault.Note: Read the danger and caution notices under “Safety Notices” on page xi before continuing with thisprocedure.Perform the following steps to isolate the problem.Step 1523-11. Turn off the power.2. Disconnect the ac power cables (dc power cables in a dc-powered system) from the base systemdrawer.3. At the top of the base system drawer, remove the following cards, in the sequence listed:a. One quad of DIMMsb. Other quad of DIMMs, if installedc. PCI adapter card(s)d. DASD device(s)e. Media bay device(s)4. Reconnect the ac power cables (dc power cables in a dc-powered system) to the base system drawer.5. Turn on the power.Is the error code 1011 1B0x displayed?NO Go to “Step 1523-7” on page 109.YES Go to “Step 1523-2.”Step 1523-21. Turn off the power.2. Disconnect the ac power cables (dc power cables in a dc-powered system) from the base systemdrawer.3. Remove base system power supply 2.4. Reconnect the ac power cable (dc power cable in a dc-powered system) to the base system powersupply 1.5. Turn on the power.Is the error code 1011 1B0x displayed?NO Go to “Step 1523-3.”YES Go to “Step 1523-4” on page 108Step 1523-31. Turn off the power.2. Reinstall base system power supply 2 that was removed in “Step 1523-2.”3. Reconnect the ac power cable (dc power cable in a dc-powered system) to the base system powersupply 2.4. Turn on the power.Is the error code 1011 1B0x displayed?Chapter 3. Maintenance Analysis Procedures (MAPs) 107
