Am I Hitting the Max of my PSU?

[Dragonfrost]

System Specs:
Maximus VIII Hero (Z170)
GTX 980TI Hybrid
Antec Neo Eco 620 Watt
Xonar Phoebus
I7 6700K
H110I GT
Samsung Evo 850 SSD

Okay so, I'm just wondering if i am hitting the max of my PSU, I have overclocked both my CPU and my GPU, CPU is overclocked to 4.6 and my GPU is overclocked +290 on the core and +200 on the memory, however i have noticed some very strange problems when overclocking my graphics card.

I run MSI Afterburner to overclock but sometimes the HDMI will cut out, you have to unplug it and plug it back in, in order to get the picture back but the weird part is, is that the card doesn't actually throttle like it does with a failed overclock but instead acts like the application simply closed, i know the difference between the two because if i push the GPU further it does crash and the overclock throttles to the reference clock.

The Core Voltage actually decreases the frames per second and lowers the stability of an overclock meaning i can't actually raise it with any benefits

It only affects the GPU so i am not sure if it's actually the GPU that is hitting the max i can overclock it or the PSU hitting the max because i am overclocking the GPU, I just need some advice to see what is going on?

 

[DonkeyOatie]

You should not be running out of PSU, even overclocked. Even large demand spikes should still be handled. could it be your GPU memory? How much did you overclock that?

 

[Dragonfrost]

Around +250 MHz the weird thing is, it's more stable on some games than others, GTA V for instance is stable even though it tasks the GPU to max but a game like tomb raider is more likely to be unstable

 

[Leaps-from-Shadows]

That system won't get anywhere near 620W even with the entire thing 100% loaded (which will never happen). Unless your power supply is dying, the most likely culprit is the graphics card.

To prove that it's not the power supply, put the CPU back to stock clock speed. I'm betting the GPU will still crap out.

 

[Dragonfrost]

So would the GPU be dying or is it just not a good overclocker? Thanks

 

[Leaps-from-Shadows]

I would say that it's only a bad/dying card if you set it to stock clocks and it continues to shut off the HDMI port.

Not a good overclocker? lol My 980 Ti Hydro Copper (the same card as yours, but made for a custom liquid cooling loop) freezes my system completely if I overclock it too high. My build is brand new and I'm still testing, but I'm at +190 and there's no way in hell I'm going to get anywhere near +290. I already tried +250 and it froze within seconds of starting a GPU stress test.

For most cards, anything over +150 is a "good" overclock. You're very lucky if you get one that is stable above +200.

My advice: Back your overclock down to +200 and try your games. If it works for a long gaming session (2+ hours) involving all of your games, then increase it by 10 and try again. It's very likely that you're simply over your card's stable overclocking limit.

 

[DonkeyOatie]

Around +250 MHz the weird thing is, it's more stable on some games than others, GTA V for instance is stable even though it tasks the GPU to max but a game like tomb raider is more likely to be unstable

250Mhz is a lot for an overclock. Back it down to 200 and see how it goes. What about your memory overclock?