v Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 3, “Parts listing, Type 7978 and 1913 server,” on page 89 to determine which components arecustomer replaceable units (CRU) and which components are field replaceable units (FRU).v If an action step is preceded by “(Trained service technician only),” that step must be performed only by atrained service technician.Error code Description Action301 Keyboard or keyboard controller error. 1. If you have installed a USB keyboard, run theConfiguration/Setup Utility program and enablekeyboardless operation to prevent the POST errormessage 301 from being displayed during startup.2. Reseat the keyboard cable in the connector.3. If you are using an external USB hub, disconnectthe keyboard from the hub and connect it directlyto the server.4. Replace the following components one at a time,in the order shown, restarting the server eachtime:a. Keyboardb. (Trained service technician only) Systemboard303 Keyboard controller error. 1. If you have installed a USB keyboard, run theConfiguration/Setup Utility program and enablekeyboardless operation to prevent the POST errormessage 301 from being displayed during startup.2. Reseat the keyboard cable in the connector.3. If you are using an external USB hub, disconnectthe keyboard from the hub and connect it directlyto the server.4. Replace the following components one at a time,in the order shown, restarting the server eachtime:a. Keyboardb. (Trained service technician only) Systemboard762 Coprocessor configuration error. 1. Run the Configuration/Setup Utility program,select Load Default Settings, and save thesettings.2. Reseat the battery.3. Replace the following components one at a time,in the order shown, restarting the server eachtime:a. System-board batteryb. Microprocessor 111xx Serial port configuration error. 1. Run the Configuration/Setup Utility program,select Load Default Settings, and save thesettings.2. (Trained service technician only) Replace thesystem board.Chapter 2. Diagnostics 33