Service manual

Chapter 5 Troubleshooting

Replace the defective DIMM.

D. If you have rebooted the system with a known good DIMM and the error does not go away,

have the system board replaced.

5. If the HP NetServer indicates there is not enough memory, and if the customer does not want to

add memory, try these steps:

A. Disable any drivers that are not necessary for the application being run, and/or the network.

B. Delete memory resident or TSRs (terminate and stay resident) programs.

To solve the problem with steps 5A-5B, the customer must be willing to give up functionality in exchange

for more memory.

6. For memory conflicts (two boards or drivers are trying to use the same memory addresses),

change the addresses used by the memory

For information about the board addresses, see the Setup Utility.

7. Once a suspect part has been found, verify it is the problem by reinstalling the part and

duplicating the error.

DIMM Memory Problems

A set of diagnostics procedures and reporting facilities points you towards a troubleshooting solution if

problems occur. The memory controller corrects minor (single-bit) errors in DIMM functioning. Errors are

detected and reported both during boot-up testing and during run time. More serious, multiple-bit errors may

require the user to replace a defective DIMM.

BIOS Test (POST)

During POST (Power-On Self-Test), the BIOS checks DIMM memory to ensure all DIMMs are functioning

correctly. The POST checks physical locations (addresses) on individual DIMMs in a rotating manner. This

revolving sequence of checks is called the Memory Count Display.

If a bad memory location is detected, the BIOS will resize memory to eliminate the location. Refer to the

following section for a description of the different types of memory errors that may occur.

During POST, the error message codes are reported on the screen for specified error conditions. The errors

are logged in the System Event Log and are accessible though the Event Log that is viewable through the

Error Log Report Utility (ELRU)  part of the NetServer Utilities package on the HP NetServer Navigator

CD-ROM.

NOTE All errors occurring during run time will be logged in the Error Log Report Utility

(ELRU) and can be viewed by running the HP NetServer Navigator CD-ROM. From

the main menu, choose the NetServer Utilities menu, then choose the Error Log

Report Utility.

Standard BIOS Error Messages

Several different situations generate visual or auditory error messages, which appear in the Event Log

Report Utility:

• No memory board detected. If a memory board is not installed, the system generates 11

beeps and halts. (This message does not apply to the

HP NetServer LC 2000/LC 2000r.)

• Memory board detected, but no DIMMs are found. If no DIMMs are installed on the system

board, you will hear three beeps and the system hangs.