HD5870 idle clocks are jumping

[angela]

Hi, as above, I used 10.11 driver, now installed 10.12 driver, same!

Idle clock are jumping from 157/300 to 850/1200 (see below)

Never had problem/blue screen while gaming or other PC tasks... just wonder why it happens and any chance to resolve this "issue" and can it cause any harm to gpu?

Thanks

 

[Skyrocket]

what programs are running if any in the task manager>?

How many monitors are you using?

Whats your refresh rate like?

Are you browsing the net and scrolling the window?

Watching you tube?

 

[angela]

If I am not gaming, most of the time firefox/skype/sometimes Microsoft office, none of power hungry programs. one monitor at 60hz

 

[Skyrocket]

Speed jumping like that would indicate powerplay is switchin on and off because your doing something. It will usually do this if your browsing and scrolling up and down the page because the card can't keep up when it's at 157mhz.
This is perfectly natural.
Boot up windows but don't run anything and see if the speed still fluctuates?

The card will not stay at 157mhz if your browsing. Because it is graphically intensive.

 

[Mr Paul]

Mine stays at 157Mhz whilst browsing. Only jumps to 910Mhz if I game...

 

[angela]

Speed jumping like that would indicate powerplay is switchin on and off because your doing something. It will usually do this if your browsing and scrolling up and down the page because the card can't keep up when it's at 157mhz.
This is perfectly natural.
The card will not stay at 157mhz if your browsing. Because it is graphically intensive.

W r o n g It stays on idle (at least on high end GPU's)...well, I forgot that Background slide shows makes it jump, I disable it and now PGU idle's at
157mhz/300mhz while browsing/MO/etc.

Thank you guys for replies, end of thread as issue resolved!

 

[kola]

i get this http://forums.overclockers.co.uk/showthread.php?t=18219493&highlight=username_kola

 

[angela]

Hi mate, check my previous post, if it can help you,

Thanks

 

[spirits247]

I get the same issue with a 6850 - perhaps a bug in the latest drivers?

http://forums.overclockers.co.uk/showthread.php?t=18219933

It only happens with IE8 and not Firefox for me - also when scrolling with mouse wheel or keyboard keys on a webpage, but not with the browser sidebar slider. Therefore it can't just be too intensive for idle clocks, as I can hammer the sidebar slider and get no speed bumps. Plus Firefox works fine.

So it's not just a background slideshow issue, but a bug that appears in certain circumstances when the command queue fills up.

Reported it over at Rage for the beta testers to spot: http://www.rage3d.com/board/showthread.php?t=33971978

 

[Steves1982]

Seems a lot of people are having this problem recently.

Look at this thread:

http://forums.overclockers.co.uk/showthread.php?t=18219493&highlight=username_kola

I found that if I disable smooth scrolling in IE8 the power spikes stop. Other web browsers have hardware acceleration which often causes it too but I only use IE8.