Hello good sir,
What an awesome thread and great effort mister
Thumbs up!
If its not to much trouble i would like to ask you something regarding ASUS HD7970 DCU2
T 3GB card that i have.
I purchased a 120/144hz monitor and i have second monitor on 60hz, i had to flip the switch on my card for BIOS2 to get the 120/144hz support for my main monitor.
After a few days i notice the issue: My VRM1 temperature was hitting 90C in idle and even more during load, alittle to much for comfort.
GPU clock goes between 500 and 1000 while memory clock stays on 1400hz and powerconsumtions is maxed all the time, even in idle or when im surfing the webs.
Picture1: This is what i started with, default BIOS2 straight som powertech, no fan-profile.
Picture2: Added my own Fan-profile and managed to get it to 83C idle daytime and 77C idle nighttime (open window, 4:25am in sweden).
So i found
this thread over at AMD and spoke some with a guy claiming GPU memory clock stuck att max when you have 2 monitor and one at above 60hz. Alltho i have tried everything and can not get my VRM1 temp to drop below 80C Idle (with my own fan profile: see attached bios). but it still reaches scary close to 100C during full load.
I have search for over 60 hours now for different solutions and suggestions and the more i read this thread the more i see some similarity's with the previous guys you have helped, when VDDC etc get stuck on a certain voltage. Maybe ive misunderstood the whole discussion you have had with them but hopefully ive made myself understandable.
Just to give some more information:
Ive been testing alot of configurations and it seems it dosent matter the amount of screens or what hz i run them in, with bios2 and 144hz support, the Voltage cranks to full and so does the memory clock (1400hz), no matter if idle, load or sleeping.
BIOS1 = Default bios. it has no 120hz/144hz support.
BIOS2 = From powertech w/144hz support
BIOS1
Monitors: 1x 60hz
VRM1 Temp Idle: Below 30C
VRM1 Temp Load: 56C after 2 hours
BIOS2
Monitors: 1x 120hz
VRM1 Temp Idle: 80-83C
VRM1 Temp Load: 95C+
BIOS2
Monitors: 1x 144hz - 1x 60hz
VRM1 Temp Idle: 80-83C
VRM1 Temp Load: 95C+
This makes me believe that it might not be related to the "
2 screens, 1 above 60hz"-theory, unless its by design (i dont have the knowledge to tell how the bios is coded).
I think its the BIOS not scaling between power/memoryclocks vs load as this would give VRM1 plenty of time to cool off. The balancing feels broken.
Anyways, im running out of clues but they are pointing me in the direction of BIOS, so at this point any suggestions or any help would be
greatly appreciated!
I have even orderd watercooling blocks and system for 300$ just to try to solve this.
Edit: GPU Tweak 2.1.7 shows 47C atm in idle on "power temprature" while HWINFO64 & GPU-Z both shows 80C. The temps correspond exactly so when +1C, they go to 48C vs 81C (so its a+43C difference on the sensor displays in the apps, maybe its gpu-tweak that is broken or other way around? hard to belive both hwinfo64 and cpu-z would randomly add +33C degrees to the displays?). Anyhow, added this info incase its usefull.
Kinds regards
Patrik