1070 Overvoltage, not applying?

[IO Studios]

Hi,

I just recently built a new rig, with a GTX 1070, I did some simple overclocking (+100 Core and +450 Memory). I am a big overclocker and I want the most out of my card, max temps always while stress stay under 68C, from what I have read online this means I have quite a bit of thermal headroom. However, when I try to overvolt it lets me apply it, but when I check, it shows no increase in core voltage. Also I can't get any higher core clocks with the voltage boost applied. Here is my exact card model:

MSI GeForce GTX 1070 DirectX 12 GTX 1070 ARMOR 8G OC 8GB 256-Bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support ATX Video Card

Thanks in advance everyone

[TrigrH]

The voltage slider when set to 100% on PASCAL, allows the card to use a little more voltage when boosting.

15 minutes ago, IO Studios said:

Also I can't get any Higher core clocks with the voltage boost applied.

People see up to 12.5 to - 25mhz, though sometimes none at all.

TLDR: GPU boost 3 is the biggest pain in the arse for trying to hit a peak stable OC.

[Jurrunio]

Big overclocker but buy one of the cheaper 1070?

 

Pascal cards have a solid core voltage upper limit of 1.092V, while manufacturers further lower it down for some of their cards so there are gaps between the cheap card and the expensive, premium card (like the Gaming X and Duke). My card can only push to 1.062V because there's the Strix card above that.

 

In your case though, it's the power limit that limits overclocking potential. Since Power = Voltage * Current, overvolting reduces current draw because maximum power is kept constant, which means you actually overclock worse. In fact, you should reduce voltage to allow more current in order to overclock more.