Recommendation for Undervolting RX580

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Aug 16th, 2019 11:12 pm

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Aug 14th, 2019 11:51 pm

bowmah [OP]: Deal Addict; Aug 25, 2006; 3675 posts; 970 upvotes

Aug 14th, 2019 11:51 pm

Recommendation for Undervolting RX580

So, after much trouble with an RX570, I now have an RX580. Wanted to decrease power usage and I know these cards can be undervolted without losing much performance. Does anyone have tried and true undervotling numbers for the RX580? Will be using Wattman and in particular, looking to undervolt the last 5 stages of the card.

With the RX570, I got about 8-10C lower in temps by undervolting. Hoping to do the same without hurting the RX580. Any advice would be appreciated.

4 replies

Aug 15th, 2019 7:52 am

badOne: Deal Fanatic; Mar 31, 2017; 6729 posts; 2955 upvotes

Aug 15th, 2019 7:52 am

what problems did you have with the 570

Aug 15th, 2019 12:08 pm

Keigotw: Deal Expert; Mar 25, 2003; 16193 posts; 4693 upvotes; Markham

Aug 15th, 2019 12:08 pm

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Aug 15th, 2019 2:59 pm

bowmah [OP]: Deal Addict; Aug 25, 2006; 3675 posts; 970 upvotes

Aug 15th, 2019 2:59 pm

badOne wrote: ↑ what problems did you have with the 570

Trying to get idle and load temps down. Both the RX570 and RX580 using the ASUS drivers does not spin the fan until 50C. The RX570 would idle at 50C so the fan would start, temps would drop, then fan would start. It would cycle this. I felt 50C idling is too high. Dropping voltages helped with temps overall.

To my surprise, the RX580 idles at 43-45C so no FAN. In fact, the heat sink must be larger and more efficient. Business applications and web dev does not push the RX580 beyond 50C so most work = no fan spin.

Thought I can do the same to lower temps further with the RX580. When gaming, temps are not bad as I disable Zero RPM and let Wattman run Auto speed / temp.

Keigotw wrote: ↑

Thanks. I was wondering if I can bump all the last 5 stages down instead of just the last stage. Any ideas?

Not sure why, with the RX570, MSI Afterburner was showing GPU power usage in watts. Can no longer find this with the RX580 installed. Is there something I need to tweak to show GPU power usage?

Aug 16th, 2019 11:12 pm

badOne: Deal Fanatic; Mar 31, 2017; 6729 posts; 2955 upvotes

Aug 16th, 2019 11:12 pm

bowmah wrote: ↑ Trying to get idle and load temps down. Both the RX570 and RX580 using the ASUS drivers does not spin the fan until 50C. The RX570 would idle at 50C so the fan would start, temps would drop, then fan would start. It would cycle this. I felt 50C idling is too high. Dropping voltages helped with temps overall.

To my surprise, the RX580 idles at 43-45C so no FAN. In fact, the heat sink must be larger and more efficient. Business applications and web dev does not push the RX580 beyond 50C so most work = no fan spin.

Thought I can do the same to lower temps further with the RX580. When gaming, temps are not bad as I disable Zero RPM and let Wattman run Auto speed / temp.

Thanks. I was wondering if I can bump all the last 5 stages down instead of just the last stage. Any ideas?

Not sure why, with the RX570, MSI Afterburner was showing GPU power usage in watts. Can no longer find this with the RX580 installed. Is there something I need to tweak to show GPU power usage?

You could have used MSI Afterburner or tinkered with a number of bios editors to change the fan profile.

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