Hi everyone!

I'm getting a weird issue with a GTX285 card with the GPUGrid project. A few minutes after the machine arrives under Windows (BOINC is launched at Windows startup), the GPU changes its frequencies to the 2D ones (400/800/300). The calculation is then slower than it should be...
Moreover, when I launch a game, I keep the 2D frequencies! This issue happens only if BOINC is working on GPUGrid...

Thanks a lot for your help! :)


PS : I'm having the real time frequencies with GPU-Z, Cuda-Z, RivaTuner...

Hi Ayor,

I ran into a similar problem with an earlier version of the 6.6.x BOINC client. The problem crept in around 6.6.12 and was fixed a few releases later. I noticed this on both single GPU and multiple-GPU systems.

I read through the release notes and found an entry that said something related to sending commands to the graphics card had been broken and then reinstated / fixed again. I do not have this problem when running BOINC client 6.6.17. If I can find the specific releases in question or a link to the information I'll post it. So if this has started occurring and you are running a back level beta client, I would suggest considering upgrading to 6.6.17.

My two cents for a possible cause.

Neil
____________
Crunching for the benefit of humanity and in memory of my dad and other family members.

Hi Neil A,

Thanks a lot for your answere.
I followed your advice and tried the last beta (6.6.17), but unfortunately, I still have the same issue...
Would you have any other idea? :)

See if something like nHancer will allow you to specify settings to make the system go into 3D clock speed.

Rob

See if something like nHancer will allow you to specify settings to make the system go into 3D clock speed.

Rob

Is there a setting for the "power mixer" in the NV-control panel? I don't know, never had an NV card whith separate 2D clocks..

MrS

No more ideas? :(

It may be a driver issue or even a defective card. See here.

Some other sites seem to note this as a problem with GTX285's (especially some of the EVGA models), but more frequently report being stuck in 3D rather than in 2D.

It may be a driver issue or even a defective card. See here.

Some other sites seem to note this as a problem with GTX285's (especially some of the EVGA models), but more frequently report being stuck in 3D rather than in 2D.

Couldn't you just fix the clocks to 3D values by using a normal overclocking tool, e.g. RivaTuner? You could also define your own 2D profile and switch manually if you want to disable GPU-Grid for a movie (or whatever). In RivaTuner you could also set up automatic profile switching based on certain events, but this is more advanced stuff. (if I remember correctly)

MrS

What OS and what version of Forceware are you using?

Here is a good link to prevent downclocking. My 260 was going to 2D mode until I found this information.
I left my hardware moniter graph in RivaTuner open and walked away a few minutes and it was downclocking. This has solved my problems.

http://www.overclock.net/nvidia/423880-howto-prevent-gtx-200-series-downclocking.html

What OS and what version of Forceware are you using?

Here is a good link to prevent downclocking. My 260 was going to 2D mode until I found this information.
I left my hardware moniter graph in RivaTuner open and walked away a few minutes and it was downclocking. This has solved my problems.

http://www.overclock.net/nvidia/423880-howto-prevent-gtx-200-series-downclocking.html