IBM 847651U Handbook - Page 209

POST Messages POST message 20x 301 303 Description A failure occurred during the memory test. This error can be caused by: Incorrectly installed memory A failing memory module A system-board failure Action: 1. If you just installed memory, verify that the new memory is correct for your system, and that the memory modules are installed properly. If the memory is not installed correctly, reseat the memory modules. (See "Working with memory modules" on page 96.) Verify that the memory modules are configured correctly. (See Chapter 3, "Configuring your server" on page 33.) 2. Run the diagnostic programs to verify the problem. (See "Running the diagnostic test programs" on page 164 for information on running the diagnostic programs that come with your server.) If the problem cannot be isolated and corrected, have the system serviced. An error occurred during the keyboard and keyboard controller test. These error messages also might be accompanied by continuous beeping. Action: Ensure that: 1. Nothing is resting on the keyboard and pressing a key. 2. No key is stuck. 3. The keyboard cable is securely connected to the keyboard connector on the server. (See "Input/output connectors" on page 11 for the location of the keyboard connector.) Note: If you have just connected a new mouse or other pointing device, turn off the server and disconnect that device. Wait at least 5 seconds; then, turn on the server. If the error message goes away, replace the device. If the error message remains, have the keyboard, cable, and system serviced. Chapter 5. Solving problems 175