Contents 9Troubleshooting the System Battery. . . . . . . . . . . 166Troubleshooting Power Supplies . . . . . . . . . . . . 167Troubleshooting System Cooling Problems . . . . . . . 167Troubleshooting a Fan . . . . . . . . . . . . . . . 168Troubleshooting System Memory . . . . . . . . . . . . 169Troubleshooting an Internal USB Key . . . . . . . . . . 171Troubleshooting an SD Card . . . . . . . . . . . . . . . 172Troubleshooting an Optical Drive . . . . . . . . . . . . 173Troubleshooting a Tape Backup Unit . . . . . . . . . . 174Troubleshooting a Hard Drive . . . . . . . . . . . . . . 174Troubleshooting a Storage Controller . . . . . . . . . . 176Troubleshooting Expansion Cards. . . . . . . . . . . . 177Troubleshooting the Processors. . . . . . . . . . . . . 1785 Running the System Diagnostics . . . . . . 181Using Online Diagnostics . . . . . . . . . . . . . . . . 181Embedded System Diagnostics Features . . . . . . . . 181When to Use the Embedded System Diagnostics . . . . 182Running the Embedded System Diagnostics . . . . . . 182System Diagnostics Testing Options . . . . . . . . . . 182Using the Custom Test Options . . . . . . . . . . . . . 183Selecting Devices for Testing . . . . . . . . . . . 183Selecting Diagnostics Options . . . . . . . . . . . 183
