Hi there,
I had my computer (Lenovo H220) which fell down from a desk, then it won't boot, I tried putting the Hard drive on another computer and it booted on well, the motherboard LEDs are on , heatsink fan is running well and I seem not to find the problem, what could be the issue with this computer?
Computer fell and it won’t boot up
I hope you have already checked that nothing is broken. This is surely RAM problem. Just remove the RAM from slot, clean the slot (not necessary but you won't leave any stone unturned) and put the RAM back in place. Now, check that VGA cable is properly connected to monitor. Now turn on the PC. It will work. If still there is no signal on monitor then check with some new RAM from another PC.