IBM B50 manual MAP 1540 Minimum Configuration, 2-17, Purpose of this MAP

MAP 1540: Minimum Configuration

Note:	If you were sent to this MAP from the Diagnostics Information for Multiple Bus
	Systems as a result of an SRN 101-xxx problem, go to “Boot Problems or
	Concerns” on page 3-27 and follow the instructions there before using the
	MAP 1540 steps.

Purpose of this MAP

This MAP is used to locate defective FRUs not found by normal diagnostics. For this procedure, diagnostics are run on a minimally configured system. If a failure is detected on the minimally configured system, the remaining FRUs are exchanged one at a time until the failing FRU is identified. If a failure is not detected, FRUs are added back until the failure occurs. The failure is then isolated to the failing FRU.

Notes:

1.Be sure to unplug the power cable before removing or installing the memory module(s), riser card, or system board to avoid damage to them.

2.This MAP assumes that a CD-ROM drive is installed and connected to the

integrated SCSI adapter, and a Diagnostics CD-ROM disc is available.

3.If a power-on password or privileged-access password is installed, you are prompted to enter the password before the diagnostic CD-ROM can load.

4.The term POST indicators refer to the icons (graphic display) or device mnemonics (ASCII terminal) that appear during the power-on self-test (POST).

Chapter 2. Maintenance Analysis Procedures (MAPs) 2-17