PC shutsdown without warning. Not Overheating

My computer keeps shutting down on its own. I put on a liquid cooling system after several heat sink and fan combos did not work and it still does it.

When I start it up, it powers up for half a sec then shuts down, then after a sec, it starts back up on its own. I thought that might mean not enough power, so I put on 100 watt larger power supply.

Any ideas?

Try reseating all the components like ram chips, hard drive connections, even the main processor, etc. Also, it could be the motherboard battery is getting weak.

Regards. :sunglasses: