Troubleshooting Your System 97Troubleshooting Your SystemSafety First—For You and Your SystemTo perform certain procedures in this document, you must remove the system cover and work insidethe system. While working inside the system, do not attempt to service the system except asexplained in this guide and elsewhere in your system documentation.CAUTION: Only trained service technicians are authorized to remove the system cover and access any ofthe components inside the system. Before performing any procedure, see your Product Information Guide forcomplete information about safety precautions, working inside the computer and protecting againstelectrostatic discharge.Start-Up RoutineLook and listen during the system's start-up routine for the indications described in Table 4-1.Table 4-1. Start-Up Routine IndicationsLook/listen for: ActionA status or error message displayed on the front-panelLCD.See "LCD Status Messages" on page 16.An error message displayed on the monitor. See "System Messages" on page 24.Alert messages from the systems managementsoftware.See the systems management software documentation.The monitor's power indicator. See "Troubleshooting the Video Subsystem" on page 99.The keyboard indicators. See "Troubleshooting the Keyboard" on page 100.The USB CD drive activity indicator. See "Troubleshooting a USB Device" on page 101.The CD drive activity indicator. See "Troubleshooting an Optical Drive" on page 109.The hard-drive activity indicator. See "Troubleshooting a Hard Drive" on page 110.An unfamiliar constant scraping or grinding soundwhen you access a drive.See "Getting Help" on page 129.
