Hi guys, I have a problem that's been happenning for some time now. After 4-5 hours of gaming ( I haven't checked while doing anything else) my monitors are just going black. I still hear my fans working and everything. I hear them running faster than usual though. The monitors are still on but the monitors aren't the problem since they are all brand new and when I try with an older monitor, I still encounter the same problem. When my screen is black I can't control my computer at all ( when I try pressing caps lock/number lock, nothing happens). The only way to fix this is restarting the computer. I've changed the motherboard 4 times already and the psu 3 times. Could someone tell me what seems to make my computer bug and crash all the time? The problem is still happenning when I stop overclocking components.
Specs:
Processor: i7-3770k
Motherboard: sabertooth z77
Hardrive: 1TB seagate (+ samsung ssd 128gb 840 pro series)
Graphics card: HD radeon 7870 edition sapphire
ram: 16gb dell 1333
CPU cooler: Thermaltake 2.0 extreme water 2.0.
PSU: 850w thermaltake toughpower grand (80 gold)
Specs:
Processor: i7-3770k
Motherboard: sabertooth z77
Hardrive: 1TB seagate (+ samsung ssd 128gb 840 pro series)
Graphics card: HD radeon 7870 edition sapphire
ram: 16gb dell 1333
CPU cooler: Thermaltake 2.0 extreme water 2.0.
PSU: 850w thermaltake toughpower grand (80 gold)