Undervolting Vega 56 - No Change in Temperature?
Undervolting Vega 56 - No Change in Temperature?
Attempting to lower the voltage on my MSI AirBoost Vega 56 because it overheats when used as a blower card. To avoid loud fans, I need to set the power around +20% in Radeon settings, which limits performance significantly. I've tried adjusting the Radeon Wattman and Afterburner settings, but the temperature remains unchanged and the core clock drops from about 1590 to 1480-1520 at 84-85°C. I've even changed the state 7 voltage from 1200 to 1050, yet the temperature stays the same. What's going wrong?
That's interesting. I think I'm definitely in the "sensitive to fan noise" group because I don't use headphones while gaming. It seems like you were trying to understand my perspective on the difference between a faulty fan and selective hearing.
The main challenge is that eventually, you'll hit constraints from the 20% fan speed limit and a power supply that only delivers 200W. After that, you need to lower clock speeds or performance until you achieve a safe temperature with the chosen fan speed.
And do the fans spin at identical or varying speeds for each voltage setting, whether automatic or manual?
The fans always work perfectly with Wattman. I keep them at 20% maximum around 72-75, but if I raise it too much, the noise becomes noticeable even when music is playing. The speed remains consistent.
I seem to have gotten somewhere atleast.
This is what my Wattman looks like default:
And here's what I have modified it to:
My core clock used to drop below 1500 MHz on full load due to thermals, now it hits around 1530-1545 stable and I haven't had the card go above 83 degrees, whereas before it was hitting 84 and 85. Seems as if the card requires no energy at all lol, my TDP has dropped from around 292 to 195-200.
That's quite an aggressive undervolt. If it's stable, you're a lucky duck. Congrats.
It didn't really drop much in temperature, though I know it's a blower style card so I should see high temps. Running it below stock at lower voltage still gives me 83 and 84 degrees, which means the fan is at 20% and it's too loud even then. If I could get it around 16-17% at 80%, I'd be happy, but it doesn't look like that will happen. I had to increase the stock voltage on P6 and 7 a bit more because during random full-load moments in games like DOOM or Minecraft, my screen would go black and the fan would spike up to 100% until I reset power through the case, which suggests the card isn't getting enough power.