Hii...

I've been having issues with my PC for last 4-5 days. It randomly reboots, but there is no POST on reboot. All fans and led's light up though. 

To fix it I've to remove the cable from mains and drain the power by pressing the power off button on the cabinet for 10-15 seconds. 

When this doesn't work, I've to power on and power off, using the button on cabinet, until I get POST, but this takes at least 3-4 minutes. Regardless of what method works, once I get to windows, it reboots without POST on slightest voltage fluctuations or during transition from main power to generator or inverter and vice versa. Since there is no POST after reboot, I've to repeat the above steps. Also to be noted is that the PC works fine on UPS battery backup as long as I do not turn on the main switch.

Thanks..!

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