cancel
Showing results for 
Search instead for 
Did you mean: 

Graphics Cards

thanosprime
Adept I

R9 380 in crossfire 2nd card fans run full all the time

Just cobbling a cheap gamer for my son with some leftover parts. I put two R9 380 4gb into a Asus M5A99FX Pro R2.0 and the card in the second slot always runs the fan on full. I did a update to the Crimson software and both cards are showing in Wattman but there is no fan control for second card its just greyed out. The fan control for the 1st card is present. When I turned Crossfire on the fans ran normal for about 30 seconds or so then went back to full speed. There was no activity on that card and it wasn't hot at all and the other card was running normally. Nothing else was running on the system. I even swapped cards but still the fans on the card in the second slot just run at max. This isn't a big deal as its just me putting together something my kid can play Fortnite and Call of Duty on something else besides my rig. But I would like to figure this out as these cards ran perfect in Crossfire on my Asrock Fatal1ly 990FX Killer (long gone). I have updated the BIOS and flushed the old driver with DDU downloading up to date Crimson drivers. Any thoughts?

Asus M5A99FX Pro R2.0

AMD FX-8350

Corsair Vengeance DDR3 1600mhz 2x4gb

2 X Power Color R9 380 4gb

Thermaltake Toughpower 750w Gold

0 Likes
1 Solution
mstfbsrn980
Grandmaster

AMD display drivers provide fan control based on GPU BIOS data if a fan controller from the GPU manufacturer is not installed. So this error seems to be sourced from the software. Try an old driver.

https://www.amd.com/en/support/graphics/amd-radeon-r9-series/amd-radeon-r9-300-series/amd-radeon-r9-... 

Or this.
https://www.amd.com/en/support/kb/release-notes/rn-rad-win-18-3-4 
The above driver's WattMan is different for controlling fans.

View solution in original post

4 Replies
mstfbsrn980
Grandmaster

AMD display drivers provide fan control based on GPU BIOS data if a fan controller from the GPU manufacturer is not installed. So this error seems to be sourced from the software. Try an old driver.

https://www.amd.com/en/support/graphics/amd-radeon-r9-series/amd-radeon-r9-300-series/amd-radeon-r9-... 

Or this.
https://www.amd.com/en/support/kb/release-notes/rn-rad-win-18-3-4 
The above driver's WattMan is different for controlling fans.

Thanks, Ill give it a try tonight and get back to you.

0 Likes

thanosprime wrote:

Thanks, Ill give it a try tonight and get back to you.

MSI Afterburner has been a standby in my shop for a very long time.

Ater 196.75 trashed a pile of hardware, i have become zealous as all hell over fan management.

Spot on mstfbsrn980. Sorry it took so long to get back. But its all working now. Thank you!