HP Desktop Pro A G3 MT Maintenance and Service Guide - Page 57
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Poor performance. Cause Program previously accessed did not release reserved memory back to the system. Virus resident on the hard drive. Too many applications running. Some software applications, especially games, are stressful on the graphics subsystem. Cause unknown. Solution Restart the computer. Run virus protection program. 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 10: a. Type msconfig in the taskbar search box, and then select msconfig. b. On the Startup tab of the System Configuration Utility, click Open Task Manager. c. Select applications that you do not want to launch automatically, and the click Disable. 1. Lower the display resolution for the current application or consult the documentation that came with the application for suggestions on how to improve performance by adjusting parameters in the application. 2. Add more memory. 3. Upgrade the graphics solution. Restart the computer. Computer powered off automatically and the Power LED flashes red four times and then white two times. Cause Solution Processor thermal protection activated: A fan may be blocked or not turning. OR The fan sink is not properly attached to the processor. 1. Ensure that the computer air vents are not blocked and the processor cooling fan is running. 2. Open the access panel, press the power button, and see if the processor fan (or other system fan) spins. If the fan does not spin, make sure the fan cable is plugged onto the system board header. 3. If fan a plugged in and not spinning, replace it. System does not power on and the LEDs on the front of the computer are not flashing. Cause Solution System unable to power on. Press and hold the power button for less than 4 seconds. If the hard drive LED turns white, then: 1. If equipped with a voltage selector, check that the voltage selector (located on the rear of the power supply) is set to Solving general problems 49