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boss ask ko lang about desktop..nabubuhay yung system unit,,pag boot nya ok naman may display,pero ilang minuto lang nawawala yung display,,pero kapag hinugot ko yung vga cable sa system unit,tapos sinaksak ko ulit nagkakaroon,,tapos nawawala ulit,,pero ok naman yung system unit buhay..sa display lang nawawala
one possibility is that there is a third party application that controls your display's frequency. for example, if the native resolution of your display is 60hz and the third party application set it to 75hz, youre display will turn off. another possibility, your video card may not be getting enough power. one more possibility, this rarely happens but maybe the power source of your display is about to get busted. you might want to test your system with another display. test also your display with another system.