PC power cuts off following 1080ti overclock event
PC power cuts off following 1080ti overclock event
Hello,
My setup:
i7 7700K
GTX 1080 ti
16GB RAM
Asus Z170-E
600w 80+
SSD & HDD
144Hz Acer monitor & 60Hz Acer monitor
Razer Seiren X mic
C920 Webcam
Elgato HD60 Pro
(For wattage considerations)
Yesterday I tried to optimize my GTX 1080 ti for better performance while playing The Division at Ultra settings. I’ve done previous optimizations before and found that the core clock usually stayed around 1550MHz and memory clock about 5800MHz. I began with a standard benchmark without optimization, then increased voltage and power limits to their maximums. After adjusting the core clock by 50 and memory clock by 500, I ran another test. The results started to decline and sometimes the program would crash. Eventually, I settled on around 80MHz for the core clock and 600MHz for memory clock. I completed three tests; outcomes varied due to repeated testing, but no major issues arose. After applying the changes and enabling Division, I didn’t notice significant improvement. When I turned on OC, the performance barely changed, and I played Darksiders 3 for about 2.5 hours before shutting down completely. I believe this was due to the optimization process itself.
Later, using PCPartpicker, it suggested a power consumption range of 419-429W. It advised keeping a buffer of 100-200W to ensure stability. Based on that, I thought my 600W 80+ PSU would be sufficient. I also read that minor overclocking typically only boosts game performance by 2-8 FPS, so I wondered if it was worth the effort or if I made a mistake.
Could anyone explain why my system shut down after optimization? It seems my memory clock was running at 6100MHz, while others averaged around 5800MHz.
Based on what you mentioned about your CPU working at full capacity while gaming, it’s likely your CPU is causing a bottleneck for your 1080 Ti. This issue might not always mean your PC shuts down completely, but it could be connected to the power supply unit. The type of PSU you have matters a lot—like choosing between a 600W tier5 and a 500W tier1. I recommend going with a Tier 1 model. Since you’re interested in EVGA, would you like my suggestion for the EVGA G2 750w, which is currently offering a significant discount?
There are two likely causes: your graphics card was too demanding on the GPU, leading to instability and crash. Or the power supply unit reached its limit and shut down to avoid damage. I’m more inclined toward the PSU. Which model should it be?
Based on what you mentioned about your CPU working at full capacity during games, it’s likely your CPU is causing a significant bottleneck for your 1080 Ti. This issue might not necessarily mean your PC will shut down completely while using it. Others have suggested the power supply unit could be the cause. Which PSU model do you have? A 600-watt Tier 5 PSU is quite different from a 500-watt Tier 1 PSU. I recommend going with a Tier 1 PSU. Since you’re interested in EVGA, would you like my recommendation for the EVGA G2 750W, which is currently offering a substantial discount?