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, System x3500 Type 7977,” on page 41 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 Action189 An attempt was made to access the serverwith an incorrect password.Restart the server and enter the administratorpassword; then, run the Configuration/Setup Utilityprogram and change the power-on password.Note: If you forgot the power-on password oradministrator password, you can change the positionof the jumper on pin 2 on SW4 to the On position tobypass the password check. This enables you toreset the passwords.196 Microprocessors do not have the same L2or L3 cache size.Install microprocessors with the same L2 or L3 cachesize.Note: Do not use dual-core and quad-coreprocessors in the same system.198 Microprocessors are not the same speed Install microprocessor of the same speed.Note: Do not use dual-core and quad-coreprocessors in the same system.289 A DIMM has been disabled by the system. 1. Replace the lowest-numbered pair of DIMMs withan identical known good pair of DIMMs; then,restart the server. If the beep code error remains,return one DIMM at a time from the failed pair toits connector, restarting the server after youreinstall each DIMM, to identify the failed DIMM.2. Make sure that the DIMM is installed correctly(see “Memory module” on page 66).3. Reseat the DIMM.4. Replace the DIMM.301, 303 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.3. Replace the following components, one at a time,in the order shown, restarting the server eachtime:a. Keyboardb. (Trained service technician only) SystemboardChapter 5. Diagnostics 105