My PC has been acting up recently. I usually leave my PC on all the time or in sleep mode and I noticed that it's been powered off lately when I tried to take it out of sleep. Then it started turning off every hour or so and the it's become exponential that now it turns off after a few minutes of use. I cleaned all the fans to make sure that there were all running and it wasn't an overheating issue. Anyone know what it the issue could be or what I should try to do to fix it?