Why does my HP Compaq Pro 4300 power off automatically and flash a red light twice?
- MMichael WardSep 4, 2025
If your HP Desktop powers off automatically, the Power LED flashes Red two times, once every second, followed by a two-second pause, and the computer beeps two times, ensure that the computer air vents are not blocked and the processor cooling fan is running. Open the access panel, press the power button, and see if the processor fan (or other system fan) spins. If the fan is plugged in and not spinning, replace it. This can happen because the processor thermal protection is activated.
















