7950 boost + saphire trixx removed dynamic volting

[antonusklesk]

So I've just replaced my 480 with a less power-hungry Sapphire 7950 OC Boost.

First impressions are great, then I decided to simply install Sapphire Trixx and bump the core up to 1000mhz. All I did was move the core from 925mhz to 1000mhz and press apply.

There's no problem with the clock at all, just that gpuz is now showing it permanently locked to 1.163v, and not undervolting to 0.800v when at idle clocks anymore.

The clocks are still scaling as expected but the volts just sit reporting at 1.163v. This happened immediately upon changing the max frequency to 1000mhz.

I've tried uninstalling Trixx to no avail, and I've done a complete fresh driver install with driver fusion also, and the volts still no longer scale.....stuck at 1.163.

Does anyone have any pointers on getting the scaling volts back?

-edit-

Following a screen freeze when trying to load up Trixx......idle voltage is now back down around 0.800. I think I'll be leaving Trixx alone for a while.

 

[shankly1985]

Did you enable constant voltage in settings?

 

[antonusklesk]

Nope, didnt' touch anything in settings before bumping the core. I've since tried enabling and then disabling it on the off-chance it might kick start correct undervolting again but no luck so far.

I've done some digging on the Sapphire forums and there's hints that it might just be a problem with Trixx. Slightly alarming though that a complete driver wipe doesn't fix it, almost as if it's permanently done something to the bios :/

And ironically, when gaming the voltage drops to 1.119 - 1.131 then jumps back up to 1.163 when back at idle.

-edit-

Following a screen freeze when trying to load up Trixx......idle voltage is now back down around 0.800. I think I'll be leaving Trixx alone for a while.

 

[BluD]

Doesnt MSI Afterburner work with them cards?

 

[Drangueos]

try another version of Trixx

 

[IC3]

Or have a look in HERE

 

[antonusklesk]

Doesnt MSI Afterburner work with them cards?

Yep it works but doesn't appear to allow voltage control.

try another version of Trixx

I believe this card is only supported by version 4.6...voltage seems to be back to normal now after the crash though and I'll be leaving Trixx alone for a while.

Or have a look in HERE

Cheers I'll keep an eye on that, I want to see how it performs as-is for the moment and if boost becomes annoying I'll have a look at removing it. It does seem to have the odd FPS drop for no apparent reason.