Undervolting GTX 970 MSI GAMING: Adjusting Voltages & Timings in MSI Afterburner, GPU 1303.6MHz

Question

Hello I wanted to play a bit with undervolting gtx 970, the problem is that in MSI afterburner I can't call the table to change timings and voltages, I tried the CTRL + F combination and nothing .. I marked to monitor the voltages and edit them in the program. I would like to see if it can...

DriverMSG · Accepted Answer

Only editing the BIOS of the graphics card remains.

RoStER · Answer

What program is the best to play with it? So that it would be the easiest because I'd be doing it for the first time.

szkieletor11111 · Answer

You have to be careful with this type of games. You can accidentally send a card to the land of the everlasting hunting.

RoStER · Answer

From what I suppose, if I do not move IDLE, the card will always get up, and if I give too low voltage in stress, it will catch a bluescreen at most. It seems so to me though

rzymo · Answer

So, as long as you don't touch the initial states (it's not only idle, but also clocks/voltage at boot time) then no big deal. At most under load sag, controller resets and similar attractions.

(as a guideline, I had my GTX 970 set to 1350 MHz at 1.05 V)

RoStER · Answer

So that's how I downloaded the bios from my card via gpu-z now I opened it with maxwell bios and the voltage table tab and I see CLK (these are certainly these states) so if I wanted to change the card core to 1.1v, all states above 1.1v lower to this values yes ?.

But what about the first tensions

In addition, what is it that my boost card should have 1253mhz and does 1303.6mhz?

rzymo · Answer

This is the easiest and most reliable way (but a bit monotonous, because there are some of these sliders ). All those above 1.1V you lower them backwards. You do not have to touch those with lower values. 'Boost State' tab, profiles P00 and P02, GPC max field - numbers greater than 1253? If so, the card will accelerate to higher clocks (depending on temperature, load, power limit) than specified in the Boost Clock field in the first tab.

RoStER · Answer

This is what it looks like in the Boost State tab:

I'm attaching the edited bios (for now voltage) to check if I didn't break something.

Screenshots from the program as I set it up:

For clk 48 nothing moves from CLK 49 to CLK 56 only MAX voltage at 1.1 a from CLK 67 to CLK 74 min and max 1.1v

@Edit
After UV it looks like this:

The problem is that during the test every few seconds there is a cut as you can see on the screen in the "bus interface load" and "memory controller load" tabs, the test freezes, blinks and goes on.

Currently yes:
Voltage from 1.125 to 1.156v core boost 1455.5mhz memory 1900.8Mhz in rise of the tomb raider everything works.

rzymo · Answer

Crop - Voltage was too low. 1.1V usually gives 1380 - 1400 MHz. The additional 50 MHz requires a voltage boost - 1.1375 you probably did not want to test yourself (it's always a bit lower than 1.15)? :)

So you currently have over 100MHz more on the core (+ faster clocked memory), with a slightly lower voltage?

RoStER · Answer

I checked a weak copy can run in 3dmark. I currently have 1443mhz and 3758mhz mem, at 1.156v where on stock it was 1305mhz and 3505mhz mem, at 1.206v

Undervolting GTX 970 MSI GAMING: Adjusting Voltages & Timings in MSI Afterburner, GPU 1303.6MHz

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