Category Name > Service Center FAQ
When I plug the Multipurpose USB Device in, the LEDs flicker but nothing happens and the system never boots. What is wrong?
All the Multipurpose USB LEDs will flicker when you first insert it into a USB port. If the LEDs continue to flicker at a fast pace or appear dimly lit, it may indicate that the USB port is running at a low bus voltage, which may prevent Service Center from running. If this occurs, try plugging the Multipurpose USB Device into another USB port (for example, moving from a port on the front to a port on the back). If the issue still occurs, use the PC-Doctor Power Supply Tester to ensure a faulty power supply is not the problem. There may be other problems on the system board that would cause low bus voltage that the Power Supply tester cannot detect.