IBM HS40 Hardware Maintenance Manual - Page 101
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Note: See Chapter 7, "Parts listing, Type 8839," on page 105 to determine which components should be replaced by a field service technician. Memory problems Symptom FRU/action The amount of system memory displayed is less than the amount of physical memory installed. 1. Make sure that: v The memory modules are seated properly. v You have installed the correct type of memory. v If you changed the memory, you updated the memory configuration with the Configuration/Setup Utility program. v All banks of memory on the DIMMs are enabled. The computer might have automatically disabled a DIMM bank when it detected a problem or a DIMM bank could have been manually disabled. 2. Check POST error log for error message 289: v If the DIMM was disabled by a system-management interrupt (SMI), replace the DIMM. v If the DIMM was disabled by the user or by POST: a. Start the Configuration/Setup Utility program. b. Enable the DIMM. c. Save the configuration and restart the computer. 3. DIMM. 4. System board. Some memory is disabled in memory diagnostics. Start the Configuration/Setup Utility program (see "Starting the Configuration/Setup Utility program" on page 11), and disable hot spare memory; then, run the diagnostics test again. Note: See Chapter 7, "Parts listing, Type 8839," on page 105 to determine which components should be replaced by a field service technician. Microprocessor problems Symptom FRU/action The blade server emits a 1. Make sure that the startup microprocessor is seated properly. continuous tone during POST. (The startup (boot) 2. Startup microprocessor. microprocessor is not working properly.) Chapter 6. Symptom-to-FRU index 91
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