Sammelthread Big Navi RX 6700XT/6800(XT)/6900XT Overclocking/Undervolting

[GerryB]

don´t ask so much

in the same time you can test it, ... with both variants and compare old vs. new
On my rig a have also to do some test, because every graphic card / chip / vram is a different quality.

 

[cra3khead]

compare old vs. new

Quick test, previous settings had a score of 4276; if I recall correctly. (Wasn't Stable)

New Setting.

Update: I killed my card; the vram died

 

[GerryB]

Update: I killed my card; the vram died

sounds not so good

Can you change as warranty?

 

[cra3khead]

@GerryB I can RMA, I just don't know how long it will take. I wanted to play Black Ops 6 today

 

[BreadPit]

How do you know you killed the vram, and what was the setting that did it?

 

[cra3khead]

@BreadPit When I was using the AMD cleanup utility, the whole screen showed error pixels; usually that's the sign that the memory died, right?

 

[BreadPit]

No, that is the sign that the memory runs out of spec. Died = black screen. If the GPU still works, you can easily adjust Vram frequency (down) and/or voltage (up) so it runs fine again.

You might mean that in default setting, after a full driver reset, the screen shows error pixels? I would reboot, do another fresh driver install, reboot again, and see what happens then.

 

[cra3khead]

I would reboot, do another fresh driver install, reboot again, and see what happens then.

Yeah, I think I was just being schizo; seems fine now.

@GerryB For some reason, at "default," I can play Black Ops 6 without crashes. How would I go about changing things in MPT to see what was the problem initially?

I'm literally just using the numbers spit out from the Automatic Tuning generator without any MPT SPPT, and my problems went away.

 

[BreadPit]

Ehm - of course, because you did not undervolt your VRAM with MPT, which likely is the root cause of pixel errors?

 

[GerryB]

btw.
Eigentlich nutze ich gar nicht so einen hohen SOC-Takt, aber um mal zu schauen, ob die SOC-Volt davon abhängen, bin ich auch mal >1000MHz gegangen, ... SOCx2>eff.Vramtakt.
Dabei bleibt meine erf.SOC-Spannung weiterhin primär vom niedrigen fclk der 6800 abhängig.
(fclk 1516 ist gar nicht soooviel niedriger als default 1550, aber es geht schon deutlich weniger Volt, ...
gamestable war dann immer fclk1512 mit den 831mV)

 

[cra3khead]

@GerryB Why don't you set your FclkBoost the same as max Fclk?

How should I go about completely redoing my MPT settings? Should I undervolt the vram by itself first in 25mv stages?

Update: Never mind it's still crashing on complete stock defaults, I think I just need to RMA.

 

[GerryB]

@GerryB Why don't you set your FclkBoost the same as max Fclk?

It´s only the clock of the video output to the monitor. (pace how to read the framebuffer in the vram out)

 

[GerryB]

vram-volts:
take some Volts more then a watercooled XTXH@40°C vram
may be 681/1281 or 687/1287 or 693/1293 works

best example today is Fas7, ... he optimized his failurecorrection
and
he runs not 312W as you, ...285W x 90% should be enough and cooler@24/7

 

[cra3khead]

Some days I experience no crashes in Black Ops 6, some days I crash every 10 minutes; I am frustrated, bro, MPT, stock, Wattman overclock/undervolt, registry tweaks, what else can I do; nothing fucking works. Should I just switch to nVidia?

 

[GerryB]

may be FSR3 in this game is crap
try only TAA

 

[cra3khead]

@GerryB I think that helped a bit.

These are my current settings. If I touch the SOC or the VRAM at all, the game crashes nonstop; right now it's fine just like this; I don't know what else I can do. It's only Black Ops 6 with this issue; I haven't had problems with any other games with my previous settings.

 

[GerryB]

If BO6 is so crappy for your card, then it is so.
= no problem to use 2 different MPT-Settings, if you want to play some hours BO6
you can restart on the desktop with the CRU restart64

Ergänzung (3. November 2024)

may be
the problem is not related to vram only
but also to some min volts if the clock changes to fast in the game
(sometimes a crash is not at high clocks but during clockchange to low clocks)

try the higher min gfx + soc and ulv volts like 6950

 

[cra3khead]

try the higher min gfx + soc and ulv volts like 6950

Yeah, even the settings with only the GFX Vmax being the only variable changed crashed last night. I will try with the higher min volts and see if that could stabilize the most previous setting I was using, but it doesn't make sense how I can change all the Wattman settings and the game will behave fine; but, as soon as I involve MPT, the game starts crashing like crazy.

 

[BreadPit]

Did you load "your own BIOS" into MPT via GPUZ?

 

[cra3khead]

@BreadPit The Navi 21 rom for my specific card, prior to editing, yes.

My friend on a 3060 Ti is also having issues with the game, as are many people on Reddit. I just wish I could undervolt better, as when you don't use MPT to undervolt when you set your clockspeed from 2.5GHz to 2.6GHz, the card uses way more power than it should to achieve those clockspeeds.

Update: Increasing the minimum voltage values didn't work either; I think MPT is just incompatible with Black Ops 6 for whatever reason; I think even if I were to keep everything the same as stock and only raise the minimum voltage values, it will result in a crash.