I have an old PC with two SSDs. It started being noisy on booting since a couple months ago. But I added one more SSD. The case only has one main fan. It keeps being noisy the same way, except this time the PC shuts down all of sudden before reaching the windows logo. I'm not sure if it's a cooling problem that I need to add more fans or maybe something else like the power supply. A help would be so much appreciated -- without a suggestion for upgrading (not an option for me right now). BTW, I use a 600 watt cooler master.