Service manual

Troubleshooting 2-5
Table 2-1 Control Panel Display
Content of Display Progress Indicated in Power-Up Flow
Compaq CPU functioning, path to the OCP operating. Hardware
involved – CPU, C-chip, P-chip 0, PCI to ISA bridge,
ISA to XBUS bridge, OCP controller.
Compaq * B-cache initialized and both B-cache and memory is
being tested. Additional hardware involved: Backup
cache on the CPU module, D-chips, memory DIMMs.
Compaq Firmware Firmware loading. Additional hardware involved – TIG
bus.
Compaq Error 06
Memory error. No memory was found, or memory is
bad, or misconfigured, or needs re-seating.
Probe I/O Subsystem SRM console probing the system. Additional hardware
involved – P-chip 1, all devices on both PCIs.
AlphaServer DS20 Either the SRM console or AlphaBIOS are up and
running.