7950 wont stop throttling

[futurefields]

I'm making a new thread because the issue now isn't that Trixx won't load my overclocks. Now my card just simply won't stop throttling.

I have this card -

http://www.newegg.com/Product/Produc...82E16814202026

It won't maintain overclocks. I am using Sapphire Trixx, +20 board power, AMD Overdrive is disabled, and it still throttles down to 850mhz, even though temps are very good, in the 50's.

 

[wand3r3r]

Msi ab

 

[futurefields]

Don't Trixx and AB operate on the same exact way? Why would AB help me? Its a Sapphire card too. Should their own software work best?

Im trying "force constant voltage" now, see if that helps

 

[futurefields]

Overclocks have held for 30 minutes now... just sort of waiting for it throttle down.

What a bad experience this has been, whole thing is leaving a bad taste in my mouth. Especially considered I also bought a new PSU just to make sure this thing would operate correctly.

 

[wand3r3r]

I don't know the internals but when one fails the other works sometimes according to what I've seen randomly thrown around forums.

MSI Afterburner works on all manufacturer's cards.

I'd at least give it a try before being you're not having any luck and seem to be running around in circles.

 

[futurefields]

Overclocks have held for over an hour now. This card fckng baffles me!

 

[futurefields]

Ok, overclocks held for like an hour, then I shut down Unigine and walked away.

When I came back, I had to wake my monitor from sleep, and then my card started throttling again.

So I think something is happening when my monitor goes to sleep and then comes back it does something to the power setting or something.

 

[Fastx]

Link
http://hardforum.com/showthread.php?t=1756303

 

[futurefields]

Yeah I saw that thread actually. Been all up and down every forum.

For now, disabling my monitor going to Sleep mode in tandem with disabling at Catalyst at startup seems to have made my overclock stick.

In the meantime, Ive submitted a ticket to Sapphire.

 

[futurefields]

I'm going to resist installing Afterburner.

I'm sort of putting my foot down there. Am I stubborn? Maybe, I just don't feel like I should have to install that companies particular OC app to get this card working at full speed.

If that's the case that Afterburner works and Trixx doesn't, then Sapphire needs to fix Trixx so it works on their own cards.

 

[futurefields]

Here's what I wrote in the support ticket:

"This is a new computer build that has been working prior with a Sapphire HD6850. I just bought a HD7950 to upgrade, and along with that, I also did a hard drive format and a complete reinstall of Windows 7 x64. So this is a clean machine running with a very minimal of software on it.

My issue is the HD7950 keeps throttling to 850mhz during gameplay, but it should be 925mhz. The temps are in a very good range, never exceeding 60c on full load for over an hour of benchmarking. I went into Catalyst Control Manager and increased the Power Setting to +20, which I was told would make the card work at full speed. But the card continued throttling to 850mhz.

So I tried disabling the Overdrive settings in Catalyst and using Trixx instead, and upped the Board Power setting to +20. However card continues to throttle to 850mhz.

So then I reinstalled everything including AMD Catalyst and Trixx, and when trying again I get the same result - the card continues throttling to 850mhz during gameplay.

And finally I tried one last thing, I disabled CCC on startup, so only Trixx loads when my computer boots. With this, I was able to maintain the 925mhz full speed during gameplay. But now I am unable to use my Catalyst Control Manager, because if I load it at all, my card starts to throttle again. The only way to avoid throttling was to disable Catalyst which is a harsh workaround.

Can Sapphire support help me figure out why my card is acting this way? Thank you,"

 

[MrK6]

Instead of complaining and wasting all this time, why not install AB and see if it works? You could have fixed your problem hours/days ago at this point.

 

[futurefields]

That's a workaround. I don't want workarounds, I want the card/drivers to function properly.

 

[MrK6]

That's a workaround. I don't want workarounds, I want the card/drivers to function properly.

But you're not: you specifically stated you disabled Overdrive, which would be the drivers controlling the card. Now you're upset that the 3rd party software you're trying to manipulate is not working the way you want. It's like you're sitting there banging on a locked door when there's an open one right next to you that everyone else is using.

 

[futurefields]

...

 

[futurefields]

But you're not: you specifically stated you disabled Overdrive, which would be the drivers controlling the card. Now you're upset that the 3rd party software you're trying to manipulate is not working the way you want. It's like you're sitting there banging on a locked door when there's an open one right next to you that everyone else is using.

"My fix was exactly this:

Installed MSI Afterburner,

Reboot

Launched AB with a /xcl at the end of it and ran it as an admin (This edits the Powerplay Tables)

Reboot

Exported the following in the registry: (see this link for more info http://www.techimo.com/forum/graphic...reg-entry.html)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4 D36E968-E325-11CE-BFC1-08002BE10318}\0000

NOTE: there is no space from the 4 and the D, not sure why its putting that in there

Note the 0000 at the end could be something else, in my case it was 0002

Edited the following value in PP_PhmSoftPowerPlayTable:
Look down about 4 lines and you'll see the number 14 in between a bunch of zeros.
Carefully change the 14 to a 32, making sure not to change or add any spaces or extra commas.

Close it and let it save it. Then click on it and allow it to merge.

Reboot

This will let you change your Powertune setting from +20% to +50%

Opened AB and I set my clocks and fan speeds to where it would be at 79c max on the GPU and 86c max on my VRM's (for my cards case, that was 1075/1500 77% fan max, its a reference Powercolor 7950B)

Set my voltage to 1.169 in my case as yours will differ. NOTE: You need to set "force constant voltage" in AB, I did not do this at first and noticed my card hit 80c in Crysis and it then reset its org values to 925mhz max, not sure if it had to do with the temp or because the voltage wasn't enforced.

Set my powertune to 50%

After this I was able to play all my games at the speeds I actually set it to, with ZERO fluctuation."



That is some kind of open door.

 

[MrK6]

That is some kind of open door.

So instead of being happy you found a fix, you're going to complain about it some more. Good luck getting help in the future when you act like that.

 

[futurefields]

Ok. Buh-bye now.

 

[futurefields]

Update -

Overclock has been stable for four hours, ever since I disabled my monitor going into sleep and disabling CCC at startup. I think this is my stable workaround for now, it would be nice to be able to use CCC and not have to worry about it though.

 

[futurefields]

Further Update -

Overclock has been stable all day playing various games and benchmarks and so forth. Pretty pleased about that. Now I just need to figure out a way to get CCC and Trixx working together. Waiting on a response from Sapphire about that.

 

[wand3r3r]

"My fix was exactly this:

Installed MSI Afterburner,

Reboot

Launched AB with a /xcl at the end of it and ran it as an admin (This edits the Powerplay Tables)

Reboot

Exported the following in the registry: (see this link for more info http://www.techimo.com/forum/graphic...reg-entry.html)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4 D36E968-E325-11CE-BFC1-08002BE10318}\0000

NOTE: there is no space from the 4 and the D, not sure why its putting that in there

Note the 0000 at the end could be something else, in my case it was 0002

Edited the following value in PP_PhmSoftPowerPlayTable:
Look down about 4 lines and you'll see the number 14 in between a bunch of zeros.
Carefully change the 14 to a 32, making sure not to change or add any spaces or extra commas.

Close it and let it save it. Then click on it and allow it to merge.

Reboot

This will let you change your Powertune setting from +20% to +50%

Opened AB and I set my clocks and fan speeds to where it would be at 79c max on the GPU and 86c max on my VRM's (for my cards case, that was 1075/1500 77% fan max, its a reference Powercolor 7950B)

Set my voltage to 1.169 in my case as yours will differ. NOTE: You need to set "force constant voltage" in AB, I did not do this at first and noticed my card hit 80c in Crysis and it then reset its org values to 925mhz max, not sure if it had to do with the temp or because the voltage wasn't enforced.

Set my powertune to 50%

After this I was able to play all my games at the speeds I actually set it to, with ZERO fluctuation."



That is some kind of open door.

That was an extremely small door.

AB is generally a few clicks and you see if it works (not registry hacks), but as you've said you're not looking for help just blogging about your closed door (or how to pick the lock) apparently. You could just use the edit button instead of bumping your post every hour.