Suferbus,

if you run those 3D benchmarks, do they really tax all 4 GPUs? I'm not sure how to tell.. maybe setting Heaven to something as demanding as possible but in windowed mode to observe GPU-Z readings. Or if you have a power meter: what's the power consumption, running those benchmarks and GPU-Grid? What's your PSU? A power hungry CPU and 2 Titan Z (375W each) can be quite demanding. Significantly more so than 2 GTX780Ti with 250 W TDP.

Does it help if you use only 1 Titan Z? Just for a test, of course ;)
In this case I wouldn't blame the driver.

MrS

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Scanning for our furry friends since Jan 2002

There is only 1 Titan Z present in that host, as dual GPU boards are always treated by BOINC like 2 GPUs. So if there were 2 Titan Z's in that host, the host's page should show "[4] NVIDIA GeForce GTX TITAN Z (4095MB) driver: 340.52".

Yes Zoltan. Although there were two computers, it's just one.
I'm just curious how many of one Titan z is able to be calculated rac for one day.
If everything works fine.. Because that man is here for the first with that monster GF card :-)
Suferbus has similar problems as when here came some new model gf card into the project. Also there fell nvidia driver and the task. Had nothing overclocked and the clean install os there .. Project scientists probably surely do not have a few Titans Z to test job before releasing tasks out.
If it works this way. I do not know. -))

Titan Z should use the same GK110 GPU as GTX780/Ti, Titan and Titan Black before it, so nothing should change software-wise. There's been a revision of that chip, but those normally don't change software-features.

Well, there's also been the release of GK210 for professional cards with minor feature changes. As far as I know Titan Z shouldn't use this one, and neither *should* it break compatibility. Actually it'S not, because the new chip reports compute capability of 3.7, which Suferbus' card does not.

MrS

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Scanning for our furry friends since Jan 2002

Hi! I'm a fairly ignorant user of BOINC and so, I don't understand if this information affects me. I have an NVidia gtx 750 Ti SC graphics card, which, to my understanding, uses Maxwell architecture) and its drivers are always up to date. Are these the drivers you're referring to that should be updated? If not, please provide me with a fairly "for dummies" explanation of how to update said Cuda drivers.

Thank you very much! :)

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Hi! I'm a fairly ignorant user of BOINC and so, I don't understand if this information affects me.

It does not affect you.

I have an NVidia gtx 750 Ti SC graphics card, which, to my understanding, uses Maxwell architecture) and its drivers are always up to date.

The GTX750Ti haven't had drivers which could have been affected by the depreciation of CUDA 4.2.

Are these the drivers you're referring to that should be updated?

Yes, they are. But since you have the latest drivers, you have nothing to do right now.

If not, please provide me with a fairly "for dummies" explanation of how to update said Cuda drivers.

The CUDA drivers are included in the display drivers, so when you update your display driver next time, your CUDA driver also will be updated.
In some rare cases however, the Driver Sweeper could help to remove any remaining files from old drivers.

Thank you very much! :)

You're welcome.

Hi Robert,

I tried to put together a comprehensive list of what is necessary to receive GPU workunits. You can either do step 1 and post back the results or take a look at your settings for steps 2-5 and see if anything needs to be changed.

- Happy crunching,
Steve

My previous reply to this message has disappeared. However, only item 4 below gave unexpected results.

4. Project preferences
http://www.gpugrid.net/prefs.php?subset=project
- Use NVIDIA GPU = on
- ACEMD short runs

I'm now getting both long and short 6.47 GPU workunits on this computer. However, all of them have the workunit repeatedly going unstable, and then failing with an unknown error message. In case it matters, this computer runs 64-bit Windows Vista.

Your message did tell me what to look for in order to enable CPU workunits but not GPU workunits on my other computer, though. The GPU heatsink on it needs cleaning, but is unreachable.

I have not ran haven benchmark for 5 hours, but have run full benchmarks with no issues, as well as normal gameplay with no issues. The system does not become unstable until I start up BOINC client, as far as I can tell anyway

Suferbus,

I've seen a somewhat similar problem on two computers. On one, the graphics board fan was no longer turning, so the GPU quickly overheated after each reboot.

On the other, the GPU heatsink needed cleaning to prevent the GPU from overheating, but the graphics board cover could not be removed to allow this cleaning.

A program you might want to install to make it easier to see your CPU and GPU temperatures:

http://efmer.com/b/

A program you might want to install to make it easier to see your CPU and GPU temperatures:

http://efmer.com/b/

If you use this (TThrottle) along with another of Fred's excellent programs (BoincTasks) you can monitor all of the computers on your network for CPU and GPU temps along with all of your BOINC activity.