When playing a variety of games I'l find they will often freeze up for a second or less, despite smooth performance otherwise. It happens fairly randomly, but more commonly in more intensive games. Based on corrolations with spikes/troughs in afterburner graphs (<=linked) (this is from an extreme example, it's not normally so frequent), it seems to me to be linked to drops in voltage. Is this deduction correct, and would it likely be caused by PSU or something else? My current PSU is 750W (I can't remember brand or model but it's pretty basic, nothing special. Definitely not Corsair or anything (why I'm currently blaming PSU)) Other specs: i5 4690 3.50 GHz 8GB RAM DDR3 (Corsair) MSI GTX970 Gigabyte Z87-HD3 Toshiba 2TB HDD (OS and games) Samsung 850EVO (other games (acting the same as those on HDD)) Win 10 64-bit Note: I'm fairly certain GPU cooling/temps are not an issue Thanks in advance for any thoughts/help.