As the title reads, I have quite a strange problem with my system. I just built it today, got everything refitted from my old case + a new 650W PSU and CPU cooler, ran RealBench benchmark, no issues (this was with an overclock on the GPU but stock CPU speeds, specs further down). Then I ran GTA V, which crashed after about 30 seconds. Restarted the game, crashed again. I then thought to myself, it probably has to do with my cables. Reseated the 24-pin connector, double-checking that all connections to the PSU were in the correct order, and they were. I then added a lonely 6+2 pin connector to the GPU alongside one of the split 2 x 6 + 2 pin connectors, instead of only using the splitter cable. Same issue (tried PUBG, crashed in main menu, and FurMark), so I got quite frustrated, because here's the thing: The only difference between this system and my old one is I went from a 600W PSU to a 650W PSU and replaced my Hyper Evo 212 with a NH D15 (+ I switched case to a Define R6, not that that matters). With the 600W PSU I could run games with an overclocked CPU and GPU with no issues, so I am immediately ruling it down to not being a power shortage issue, thus I really am clueless as to what's going on.
My system is completely stable when watching YT videos and just browsing my desktop (with overclocked GPU), and running FurMark stress test at stock GPU speeds is perfectly stable. It seems that as soon as the power limit reaches above 105% things go downhill.
Specs:
Motherboard: Asus Maximus VIII Gene
CPU Cooler: NH D15
CPU: i7 6700K @ 4.2 GHz
GPU: GTX 1080 @ +145 MHz Core Clock, +500 MHz Memory Clock, 120% power limit, 100% core voltage (MSI Afterburner) (this overclock was fully stable in my old system)
PSU: EVGA G3 650W
I have yet to test my old PSU, which would be the best way to find out if the new PSU is at fault or not, because I'm quite exhausted after all this work. Thought I'd turn to this forum as a last resort!
Update: My old PSU was not modular and it had two separated PCI-E 6 + 2 pin connectors.
Thanks in advance for any clues as to what might be wrong!
My system is completely stable when watching YT videos and just browsing my desktop (with overclocked GPU), and running FurMark stress test at stock GPU speeds is perfectly stable. It seems that as soon as the power limit reaches above 105% things go downhill.
Specs:
Motherboard: Asus Maximus VIII Gene
CPU Cooler: NH D15
CPU: i7 6700K @ 4.2 GHz
GPU: GTX 1080 @ +145 MHz Core Clock, +500 MHz Memory Clock, 120% power limit, 100% core voltage (MSI Afterburner) (this overclock was fully stable in my old system)
PSU: EVGA G3 650W
I have yet to test my old PSU, which would be the best way to find out if the new PSU is at fault or not, because I'm quite exhausted after all this work. Thought I'd turn to this forum as a last resort!
Update: My old PSU was not modular and it had two separated PCI-E 6 + 2 pin connectors.
Thanks in advance for any clues as to what might be wrong!
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