NonStop S-Series Hardware Installation and FastPath Guide (G06.29+)

Troubleshooting
HP NonStop S-Series Hardware Installation and FastPath Guide—541880-002
D-8
Any Green LED Is Not Lit
Any Green LED Is Not Lit
1. Make sure the fans are turning. If the fans are not turning and if none of the green
LEDs on the system components in an enclosure are lit, the power might not have
been properly applied. Check that the power-on cables are properly connected and
repeat the power-on procedure.
2. Wait for the POSTs to finish. It can take several minutes after power is applied for
the green LEDs on all system components to light.
3. If a green LED still does not light on a system component, it might have failed its
POST. Check for other indications that the POST has failed. For example, the
following are indications that a POST for a PMF CRU has failed:
4. Unseat and reseat the component.
5. If you cannot determine the cause of the problem, contact your service provider.
6. If necessary, replace the component using the procedures in the Service
Procedures>NonStop S-Series Hardware Servicing section of the NTL Support
and Service Library.
If the component is an IOMF, PMF, SNDA, Power Supply, SEB, or MSEB, see the
guided replacement procedures in the OSM Service Connection, or the appropriate
guided procedure located in the TSM program group.
To access the OSM guided replacement procedures, see OSM Guided
Replacement Procedures on page xxiv.
Note. To troubleshoot any LEDs in an IOAM enclosure, contact your service provider who can
refer to the Modular I/O Installation and Configuration Guide located in the NTL Hardware
Service and Maintenance Collection in the Support and Service Library.
Power-On Self-Test Other Indications of Failure
Failed Processor Memory Test
•
Processor halts with a halt code of %100236.
•
Hardware error freeze occurs.
Failed System Load Path Test
•
Processor halts with a halt code of %100237.
Failed MFIOB Test
•
PMF CRU green power-on and amber service
LEDs do not light if the MFIOB is not operational.
•
PMF CRU amber service LED lights if the MFIOB
is partially operational.