IBM BladeCenter HS20 Type 8832 Maintenance And Troubleshooting Manual

Also see for eServer BladeCenter HS20 Type 8832: Setup guide Installation and user guide Problem determination and service guide

Contents

Note: See “System” on page 94 to determine which components should be replaced by a field service technician.Power problemsSymptom FRU/actionPower switch does not workand reset button, if supported,does work.1. Reseat connector.2. Front bezel with customer card.3. System board.The blade server does not turnon. 1. Verify that:a. The power LED on the front of the BladeCenter unit is on.b. The LEDs on all the BladeCenter power modules are on.c. If the blade server or attached storage expansion unit is in blade bay 7-14,power modules are in power bays 1, 2, 3 and 4.d. The power-on LED on the blade server control panel is blinking slowly.v If the power LED is blinking rapidly and continues to do so, the bladeserver is not communicating with the management module; reseat theblade server, then go to step 3v If the power LED is off, the blade bay is not receiving power, the bladeserver is defective, or the LED information panel is loose or defective.e. Local power control for the blade server is enabled (use the BladeCentermanagement module Web interface to verify), or the blade server wasinstructed through the management module (Web interface or IBM Director)to turn on.2. If you just installed an option in the blade server, remove it, and restart theblade server. If the blade server= now turns on, you might have installed moreoptions than the power to that blade bay supports.3. Try another blade server in the blade bay; if it works, replace the faulty bladeserver.4. See “Undetermined problems” on page 90.The blade server does not turnon and the following conditionsare present:1. The amber system errorLED on the Blade Centerunit’s system LED panel islit;2. The amber blade error LEDon the blade server’s LEDpanel is lit; and3. The system error logcontains the message"CPUs mismatched".v The microprocessor with the lowest feature set must be used as the BootstrapProcessor (microprocessor 1 in location U66; see “System board componentlocations” on page 60). Move the microprocessor in location U66 to locationU70, and move the microprocessor in location U70 to location U66.The blade server turns off for noapparent reason 1. Verify that all blade bays have a blade server, expansion unit, or fillerblade properly installed. If these components are missing or improperlyinstalled, an over-temperature condition may result in shutdown.2. If microprocessor LED is illuminated, replace the microprocessor.The computer does not turn off. 1. Verify whether you are using an ACPI or non-ACPI operating system. Ifyou are using a non-ACPI operating system:a. Press Ctrl+Alt+Delete.b. Turn off the system by holding the power-control button for 4 seconds.c. If computer fails during BIOS POST and power-control button does notwork, remove the blade server from the bay and reseat it.2. If the problem remains or if you are using an ACPI-aware operating system,suspect the system board.84 BladeCenter HS20 Type 8832: Hardware Maintenance Manual and Troubleshooting Guide