IBM B50 - Manual (Page 168)

Step 3
This step attempts to load Online diagnostics in service mode.
1. Set the power to off.
2. Set the power to on.
3. When the keyboard indicator starts blinking, press the F6 key on the direct
attached keyboard or the number 6 on the ASCII keyboard to indicate that
diagnostics are to be loaded.
4. Enter any requested passwords.
5. Follow any instructions to select a console.
6. Wait until the diagnostics load or the system appears to stop.
Did the diagnostics load?
NO Go to “Step 5.”
YES Go to “Step 6.”
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