6-6
AlphaServer 8200/8400 Operations Manual
6.3 Troubleshooting a PCI Shelf
LEDs show the status of power supplies as well as the adapter self-test results in
the PCI shelf, mounted vertically in the AlphaServer 8400 and horizontally in the
AlphaServer 8200.
Figure 6-5 PCI Shelf in a BA655 PIU
BX-0165A-95
2
1
3
4
Hose
48V Power
DWLPA/
DWLPB
LED
Numbers
LED Status in PCI Shelf
LED 1 - On-board power system OK
LED 2 - Motherboard self-test passed
LED 3 - 48 VDC power supply OK
LED 4 - Hose Error