Compaq 315eu Maintenance and Service Guide - Compaq 100eu Small Form Factor, 1 - Page 162
Troubleshooting Without Diagnostics, The Smart Cover FailSafe Key, a device for manually
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Computer date and time display is incorrect. Cause RTC (real-time clock) battery may need to be replaced. NOTE: Connecting the computer to a live AC outlet prolongs the life of the RTC battery. Solution First, reset the date and time under Control Panel (Computer Setup can also be used to update the RTC date and time). If the problem persists, replace the RTC battery. 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. The Smart Cover FailSafe Key, a device for manually disabling the Smart Cover Lock, is available from HP. You will need the FailSafe Key in case of forgotten password, power loss, or computer malfunction. Order PN 166527-001 for the wrench-style key or PN 166527-002 for the screwdriver bit key. Poor performance is experienced. Cause Processor is hot. Hard drive is full. Low on memory. Hard drive fragmented. Program previously accessed did not release reserved memory back to the system. Virus resident on the hard drive. Solution 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 heatsink is installed properly. Transfer data from the hard drive to create more space on the hard drive. Add more memory. Defragment hard drive. Restart the computer. Run virus protection program. 152 Chapter 11 Troubleshooting Without Diagnostics