IBM HS12 Service Guide - Page 95

v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 4, "Parts listing, Types 8014, 8028 and 1916," on page 25 to determine which components are CRUs and which components are FRUs. v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician. Error message Action Microprocessor halted 1. Remove the blade server from the BladeCenter unit; then, reinstall it. See "Removing the blade server from the BladeCenter unit" on page 33 and "Installing the blade server in a BladeCenter unit" on page 34. 2. Reseat the microprocessor - See "Removing a microprocessor and heat sink" on page 60 and "Installing a microprocessor and heat sink" on page 62. 3. Replace the following components one at a time, in the order shown, restarting the blade server each time: a. (Trained service technician only) Microprocessor - See "Removing a microprocessor and heat sink" on page 60 and "Installing a microprocessor and heat sink" on page 62. b. (Trained service technician only) System-board assembly - See "Removing the system-board assembly" on page 65 and "Installing the system-board assembly" on page 66. Microprocessor temperature warning 1. Make sure that the blade server is sufficiently cooled. 2. Make sure that the front bezel on the blade server is not blocked. 3. (Trained service technician only) Replace microprocessor - See "Removing a microprocessor and heat sink" on page 60 and "Installing a microprocessor and heat sink" on page 62. Firmware (BIOS) backup ROM corruption, System board failure 1. Update the blade server firmware - Go to http://www.ibm.com/systems/ support/. 2. Replace the optional expansion unit - See "Removing an optional expansion unit" on page 37 and "Installing an optional expansion unit" on page 38. Chapter 6. Diagnostics 83