Strange behaviour with multiple GPU - opinions sought

Dim Reaper

Several months ago I upgrades the 980ti card in my pc ot a 1080ti.  A while later I upgraded the PSU and put the 980ti back in.  Both cards have performed well since then.

The older computer in the house that my girlfriend uses for web browsing is out of action temporarily, so I created a new account on my main pc for her to use.  What I've found is that once she logs out of the other account and I log back in to my account, the 980ti is running at a higher core clock speed unless I restart the computer.

Normally, the 980ti runs at a speed of 135 MHz (which means a fairly low idle temperature).  On starting a render, it immediately goes up to 1000 MHz until the actual rendering starts, when it jumps to 1200 MHz.  At the end of a render, it drops back to 1000 MHz and then back to 135 MHz once the scene is saved or closed.

On logging from a secondary account back to my main account, the 980ti runs at 1000 MHz at idle (and looking at the temperatures I assume it is running like this on the secondary account).

This isn't causing any major issues as a simple reboot sets the speed back to default, but does anyone have any ideas on how I can keep the 980ti at the 135 MHz core speed on all accounts rather than just my main one?  Only difference that I can see is that my accound has admin privelages and the secondary one doesn't.

 

CGHipster

Normally it is related to the user profile.  Each profile could have a different power profile.  I'm only guessing that its possible too that when she logs in your settings are not in use for other things like clock speeds on the cards.  If you look at the settings for your cards and power profiles you will probably see that windows created a new list of settings for the secondary account.

Dim Reaper

Thanks for the suggestion.  I think I might put admin access on the account and then take a look at any nvidia and graphics card software settings.  Definitely a place to start looking, though I have no idea how to put a card into such a low state.  I'll post back if I find out.