• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

High idle clocks/temperatures when running dual monitors (HD 7970)

fishingcat

fishingcat

fishingcat

Associate
Joined
10 Jan 2013
Posts
284
I recently added a second monitor to my setup, only to discover that it caused my memory clocks to permanently run at 1600MHz, pushing my idle temperatures up by around 15 degrees and causing my GPU fans to run faster and louder.

There's no reason for the memory clock to run that high while at idle/using 2D applications, yet I can't find a way to get it to clock down short of manually adjusting every time I'm not playing a game.

Anyone have any suggestions?
 
It is like that.

you could use msi afterburner and make 1 profile for gaming and 1 profile for idle...
than you go on:
settings
profiles
automatic profiles management

and you can choose which profile it will automatic load when on 2d or 3d.
 
If its uses the same 2d clocks as a single monitor you get flickering problems. This applies to both nvidia and ATI cards iirc.

For ATI you can dial back the GPU and memory clocks a bit, I used a registry edit iirc, you can also do it via afterburners config file. You can't run the same clocks as you can with a single card but you can get temps down a bit.
 
Running in extended desktop mode will give ur card higher temps.. running two monitors with the taskbar across both screens will be like running one monitor temperature wise. I do this sometimes and use windowed mode for some apps and when i want full screen on one of my monitors i switch to extended desktop mode.
 
Its the same for 120+ hz monitors also. Its annoying but theres not much you can do about it as it is indeed normal.
 
So I'm stuck with idle temps of 47 degrees and idle fan speeds of 45% just because AMD are too ****ing lazy to implement memory downclocking on two screens?
 
They did have memory downclocking previously, but it caused loads of flicker problems.

I agree the problem is very annoying though, it jumped from ~35c idle (not properly checked) to 47c idle for me. I tried using the onboard for the second screen but even now Windows sometimes complains it runs out of memory and turns off Aero.
 
Orcvader said:
They did have memory downclocking previously, but it caused loads of flicker problems.

I agree the problem is very annoying though, it jumped from ~35c idle (not properly checked) to 47c idle for me. I tried using the onboard for the second screen but even now Windows sometimes complains it runs out of memory and turns off Aero.
Click to expand...

Curious, since I can downclock manually using MSI Afterburner with no problems at all, and get considerably lower temps and noise with no flickering at all.
 
fishingcat said:
Curious, since I can downclock manually using MSI Afterburner with no problems at all, and get considerably lower temps and noise with no flickering at all.
Click to expand...

Yeah just had a play with it. Oddly setting memory clock lower than stock allows the core to run at 300mhz (single screen idle speed) instead of the usual 500mhz doe dual screens. Might play around with this a bit more...
 
You must log in or register to reply here.
Back
Top Bottom