HP Vectra XU 6/XXX HP Vectra XU6/150 PC - User’s Guide - Page 76
If Your Keyboard Or Mouse Does Not Work
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If You Cannot Use Any Video Resolution Higher Than 640 X 480 If you cannot select a video resolution higher than 640 X 480, you should clear the contents of the CMOS memory. To clear the configuration: 1 Switch off the PC and remove the cover (refer to chapter 3 for instructions). 2 Set the system board switch 1 (CONFG) on the switch block to ON to clear the configuration from the CMOS memory (refer to "System Board Switches" in chapter 5 for the switch location). 3 Switch on the PC to erase the CMOS memory. 4 Check that error codes 0240 and 0130 are displayed by the Error Message Utility, and wait until the PC has started. 5 Switch off the PC. 6 Set the system board switch 1 (CONFG) on the switch block to OFF to re-enable the configuration. 7 Replace the cover (refer to chapter 3). 8 Switch on the PC and run Setup by pressing [F2] when appears. (Error code 0130 will appear when the PC starts.) 9 Press [F3] to save the configuration and exit from Setup. IF YOUR KEYBOARD OR MOUSE DOES NOT WORK 1 Ensure that the keyboard or mouse is correctly connected. 2 Ensure that the mouse driver supplied with the preloaded software is installed correctly. (Choose a Logitech™ mouse driver for your operating system.) 3 Clean the mouse ball and rollers as shown in the figure below (use a non-residual contact cleaner).