Compaq Pro 6305 Maintenance and Service Guide Pro 6305 Microtower Business PC - Page 160
Troubleshooting Without Diagnostics, Cannot remove computer cover or access panel., Cause
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Cannot remove computer cover or access panel. Cause Smart Cover Lock, featured on some computers, is locked. Solution Unlock the Smart Cover Lock using Computer Setup. In case of forgotten password, power loss, or computer malfunction, you must manually disable the Smart Cover lock . A key to unlock the Smart Cover Lock is not available from HP. Keys are typically available from a hardware store. Poor performance. Cause Solution Processor is too hot. 1. Make sure airflow to the computer is not blocked. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow. 2. Make sure fans are connected and working properly (some fans only operate when needed). 3. Make sure the processor heat sink is installed properly. Hard drive is full. Low on memory. Transfer data from the hard drive to create more space on the hard drive. Add more memory. Hard drive fragmented. Defragment hard drive. Program previously accessed did not release reserved memory Restart the computer. back to the system. Virus resident on the hard drive. Too many applications running. Run virus protection program. Windows 7: 1. Close unnecessary applications to free up memory. 2. Add more memory. 3. Some applications run in the background and can be closed by right-clicking on their corresponding icons in the task tray. To prevent these applications from launching at startup: In Windows 7: a. Go to Start > All Programs > Accessories > Run b. Type msconfig, and then press Enter. c. On the Startup tab of the System Configuration Utility, clear applications that you do not want to launch automatically, and the click OK. 150 Chapter 8 Troubleshooting Without Diagnostics
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