Processor Problems; Memory Problems - HP ProLiant ML150 Operation Manual

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Table of Contents

3. Verify the switch settings on the SCSI devices are correct.

4. Verify each SCSI device is assigned a unique SCSI ID.

5. Be sure no SCSI device is set to SCSI ID 7. This SCSI address is generally used by the

SCSI controller.

6. Be sure all installed SCSI controllers are configured correctly.

7. If the SCSI devices installed in an external connected to the HP server operate in Ultra

SCSI or FAST SCSI mode, this may cause a problem. The SCSI controller board and the

internal SCSI devices normally provided with the HP servers operate in Ultra 160 SCSI

mode. The external SCSI devices may be slowing down or causing the internal SCSI

controller board to be ineffective and therefore non-operational.

8. Check the SCSI cables for problems that may be caused by any recent HP server

maintenance, hardware upgrades, or physical damage.

9. Check the system BIOS version to ensure it is the most recently issued version. The most

recent version is listed on HP's website.

10. Verify the SCSI bus is terminated at both ends. By default, HP server SCSI controllers in

external enclosures are terminated. When a device is connected to a connector on the

SCSI bus, bus termination for that connector is disabled. Verify the last device on the bus

is terminated.

Contact the HP Customer Support Center for further troubleshooting assistance before

replacing any parts.