IBM H Series Installation And Service Manual page 97

Step 1540-27
The system is working correctly with this configuration. One of the FRUs (adapters)
that you removed is probably defective.
1. Turn the power off and remove the power cable.
2. Install a FRU (adapter) and connect any cables and devices that were attached
to it.
3. Plug in the power cable and wait for OK on the operator panel display.
4. Turn the power on.
5. If the Console Selection screen is displayed, choose the system console.
6. Enter the appropriate password if prompted to do so.
Does the system stop with code 26800Dxx, 45800000, 4880090A, 4B2xxx00 or
4B2xxx10 displayed on the operator panel?
NO Repeat this step until all of the FRUs (adapters) are installed, then go to
"Map 0410: Repair Checkout" in the Diagnostic Information for Multiple
Bus Systems.
YES Go to "Step 1540-28" on page 2-64
Chapter 2. Maintenance Analysis Procedures
2-63