Epson Endeavor User Manual - Page 138

9. If you installed a display adapter card (and did not connect it to the feature connector on the main system board), you must set jumper J6 to disable the built-in VGA adapter. Otherwise, you will not see any display on the screen. See "Changing the Jumper Settings" in Chapter 2. 10. If your computer suddenly stops operating, its power supply thermal detection circuits may have detected excessive operating temperatures and automatically shut down the power. This protects your system from damage. When these circuits detect a high temperature, they shut off all the DC outputs in the power supply and cause it to go into latch-off state. This does not damage the power supply, but you must correct the temperature problem before you can use your computer again. See "Restoring the Power Supply" below. Restoring the Power Supply To restore normal power supply operation, follow these steps: 1. Turn off the computer and leave it off for at least 30 seconds to reset the power supply logic. 2. To determine the cause of the high temperature and correct the condition, check for the following: 0 Room temperature above 90o F (32" C). If this is the case, relocate the computer to a cooler area. Ll A blocked power supply fan. Make sure there is space around the power supply fan vents in the back and sides of the computer case. Remove the computer's cover and check both inside and outside the computer for blockage. Make sure there is ample room around your system for air circulation. Troubleshooting 6-9