Dual GPU not being recognized n- New Build

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Starman
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Message 1731545 - Posted: 3 Oct 2015, 16:56:57 UTC

So, I got my new build up and running (Brett-i7)
Gigabyte Z170X-UD5, i7-6700K, 32GB DDR4 2400mhz, R9-380 and HD7870, Windows 10.

BOINC only sees the R9

Device Manager shows both GPU's fine.

CCC shows both, but says 7870 "disabled"

I've googled it and only thing I find is with Crossfire enabled, CCC will show the second GPU disabled and only activate when needed. I do not see where I can disable Crossfire in CCC.

Any ideas. The combo worked fine in my old PC GA-P55A-UDP, i5-750 machine.

Thanks,

Brett
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Message 1731547 - Posted: 3 Oct 2015, 17:08:34 UTC - in response to Message 1731545.  

Nothing to do with crossfire - don't waste time with that.

What you need to do is to edit, or create, BOINC's cc_config.xml file to include an option line

<use_all_gpus>1</use_all_gpus>

Since you're using BOINC v7.6.9, the easiest way is to tweak BOINC's set of Event log options slightly (cpu_sched is a good one to add): that will write out a complete cc_config.xml file, with <use_all_gpus> set to the default zero. Change it to one, save it, and restart BOINC.
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Message 1731605 - Posted: 3 Oct 2015, 20:42:56 UTC - in response to Message 1731547.  

Tried adding <use_all_gpus>1</use_all_gpus> to my cc_config.xml

Still no joy and under my computers still only showing the one GPU.
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Profile Jord
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Message 1731628 - Posted: 3 Oct 2015, 21:43:39 UTC - in response to Message 1731605.  

Did you restart BOINC? Just adding the line to cc_config.xml won't fix this. Doing a 'read config files'won't do it either as GPU detection only happens at boinc startup.
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Message 1731644 - Posted: 3 Oct 2015, 22:27:59 UTC - in response to Message 1731547.  
Last modified: 3 Oct 2015, 22:28:47 UTC

Nothing to do with crossfire - don't waste time with that.

What you need to do is to edit, or create, BOINC's cc_config.xml file to include an option line

<use_all_gpus>1</use_all_gpus>

Since you're using BOINC v7.6.9, the easiest way is to tweak BOINC's set of Event log options slightly (cpu_sched is a good one to add): that will write out a complete cc_config.xml file, with <use_all_gpus> set to the default zero. Change it to one, save it, and restart BOINC.


CCC shows both, but says 7870 "disabled"

You missed an important line, Catalyst Control Center is reporting that the other GPU is disabled, not BOINC.

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Message 1731712 - Posted: 4 Oct 2015, 3:46:14 UTC - in response to Message 1731628.  

Yes, I restarted. Still not running.

Windows device manager show two display adapters, the R9-380 and the HD7870, and both say "The device is working properly"

It's when I go into CCC, and hardware under info, that it says the HD7870 is disabled.

A number of on-line posts say there is an option in CCC to turn off Crossfire. My CCC does not have that option that I can find.
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Message 1731714 - Posted: 4 Oct 2015, 4:06:02 UTC - in response to Message 1731712.  

Windows device manager show two display adapters, the R9-380 and the HD7870, and both say "The device is working properly"

It's when I go into CCC, and hardware under info, that it says the HD7870 is disabled.

If you right click on the Desktop, then Screen resolution, does it show 2 displays there?
Grant
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Message 1731744 - Posted: 4 Oct 2015, 8:21:30 UTC
Last modified: 4 Oct 2015, 8:21:43 UTC

plug a monitor into the disabled card

crossfire should be disabled since its different cards
I came down with a bad case of i don't give a crap
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Message 1731843 - Posted: 4 Oct 2015, 16:04:43 UTC - in response to Message 1731744.  

OK, I plugged in a second monitor, and almost voila! CCC has now enabled the adapter. Restarted BOINC and the startup log shows both adapters but says the 7870 "ignored by config"

So I don't have something right in my config file.
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Message 1731848 - Posted: 4 Oct 2015, 16:08:26 UTC

Houston we have lift off. Opened the config file, found the GPU entry and it was set to "0", changed to "1" bingo. All GPU working.
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Message 1731852 - Posted: 4 Oct 2015, 16:11:30 UTC

Thanks for the help, do have another issue.

In old box (brett-PC) where I pulled the R9 and 7870, I put my old 4870 in. Installed the legacy driver and all looks good BOINMC shows it , but I have been requested tasks for GPU and not getting any.

When I did the swap, I ended up abandoning all existing GPU tasks.

Could that have any effect in not getting any?

Thanks again
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Message 1731860 - Posted: 4 Oct 2015, 16:31:48 UTC

First, we cannot see your computer names, only the SETI@Home assigned numbers.
Second, did you abandon the tasks manually, or did it happen automatically when BOINC detected the removal of the GPU?

Either way round it should not affect you getting new tasks, what will have a bigger impact is the shortage of tasks just now - it wold appear that there was a bit of a glitch with the splitters a short time back and they are now trying hard to catch up (well, as hard as the splitters every try...)
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Message 1731861 - Posted: 4 Oct 2015, 16:34:25 UTC - in response to Message 1731852.  
Last modified: 4 Oct 2015, 16:52:07 UTC

Restart BOINC and take a look at the first 20-30 lines in the log. This should tell you if everything is working correctly on your computer.
Just a note: we cannot see your computer names so it can be hard to tell which one you are referring to. We can only see your computer ID.

I see we were both typing at the same time Bob.

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Message 1731870 - Posted: 4 Oct 2015, 16:58:01 UTC - in response to Message 1731852.  

Thanks for the help, do have another issue.

In old box (brett-PC) where I pulled the R9 and 7870, I put my old 4870 in. Installed the legacy driver and all looks good BOINMC shows it , but I have been requested tasks for GPU and not getting any.

When I did the swap, I ended up abandoning all existing GPU tasks.

Could that have any effect in not getting any?

Thanks again



one of my machines is not getting any gpu tasks either for some reason i always get the no tasks available i think i give it one more day and see if i can get some then i look into whats up with it
I came down with a bad case of i don't give a crap
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Message 1731897 - Posted: 4 Oct 2015, 19:06:01 UTC - in response to Message 1731861.  

6683283

That's the one not getting tasks. I manually abandoned them all, because after the 4870 was installed, it was saying no GPU found.

here is what I got. I have the Catalyst 13.1 package.


2015-10-04 11:59:19 AM | | CAL: ATI GPU 0: ATI Radeon HD 4700/4800 (RV740/RV770) (CAL version 1.4.1734, 512MB, 480MB available, 2400 GFLOPS peak)
2015-10-04 11:59:19 AM | | OpenCL CPU: Intel(R) Core(TM) i5 CPU 750 @ 2.67GHz (OpenCL driver vendor: Advanced Micro Devices, Inc., driver version 1800.8 (sse2), device version OpenCL 1.2 AMD-APP (1800.8))
2015-10-04 11:59:19 AM | | App version needs OpenCL but GPU doesn't support it
2015-10-04 11:59:19 AM | SETI@home | Application uses missing ATI GPU
2015-10-04 11:59:19 AM | | App version needs OpenCL but GPU doesn't support it
2015-10-04 11:59:19 AM | SETI@home | Application uses missing ATI GPU
2015-10-04 11:59:19 AM | | App version needs OpenCL but GPU doesn't support it
2015-10-04 11:59:19 AM | SETI@home | Application uses missing ATI GPU
2015-10-04 11:59:19 AM | | App version needs OpenCL but GPU doesn't support it
2015-10-04 11:59:19 AM | SETI@home | Application uses missing ATI GPU
2015-10-04 11:59:19 AM | | App version needs OpenCL but GPU doesn't support it
2015-10-04 11:59:19 AM | SETI@home | Application uses missing ATI GPU
2015-10-04 11:59:19 AM | | App version needs OpenCL but GPU doesn't support it
2015-10-04 11:59:19 AM | SETI@home | Application uses missing ATI GPU
2015-10-04 11:59:19 AM | | App version needs OpenCL but GPU doesn't support it
2015-10-04 11:59:19 AM | SETI@home | Application uses missing ATI GPU
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Message 1731909 - Posted: 4 Oct 2015, 20:04:29 UTC

I have been doing a little googling and found some that point to going back to older drivers causes some issues.

Any thoughts about completely uninstalling previous drivers. Could that be it?
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Message 1731910 - Posted: 4 Oct 2015, 20:26:03 UTC - in response to Message 1731909.  
Last modified: 4 Oct 2015, 20:27:00 UTC

2015-10-04 11:59:19 AM | | CAL: ATI GPU 0: ATI Radeon HD 4700/4800 (RV740/RV770) (CAL version 1.4.1734, 512MB, 480MB available, 2400 GFLOPS peak)
2015-10-04 11:59:19 AM | | OpenCL CPU: Intel(R) Core(TM) i5 CPU 750 @ 2.67GHz (OpenCL driver vendor: Advanced Micro Devices, Inc., driver version 1800.8 (sse2), device version OpenCL 1.2 AMD-APP (1800.8))

According to that the previous driver is still around.
Yes, there are numerous old posts on this board about using Display Driver Uninstaller when going backwards with AMD drivers, http://www.guru3d.com/files-details/display-driver-uninstaller-download.html
It usually solves the problems.
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Message 1731920 - Posted: 4 Oct 2015, 21:05:00 UTC - in response to Message 1731910.  

Thanks TBar, that did the trick. Still don't have any GPU tasks, but I'm sure that is due to the shortage.

Now just a little patience.

Cheers,

Brett

2015-10-04 1:56:15 PM | | CAL: ATI GPU 0: ATI Radeon HD 4700/4800 (RV740/RV770) (CAL version 1.4.1734, 512MB, 480MB available, 2400 GFLOPS peak)
2015-10-04 1:56:15 PM | | OpenCL: AMD/ATI GPU 0: ATI Radeon HD 4700/4800 (RV740/RV770) (driver version CAL 1.4.1734, device version OpenCL 1.0 AMD-APP (937.2), 512MB, 480MB available, 2400 GFLOPS peak)
2015-10-04 1:56:15 PM | | OpenCL CPU: Intel(R) Core(TM) i5 CPU 750 @ 2.67GHz (OpenCL driver vendor: Advanced Micro Devices, Inc., driver version 2.0 (sse2), device version OpenCL 1.2 AMD-APP (937.2))
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Message 1731942 - Posted: 4 Oct 2015, 22:33:50 UTC

Pay dirt. Right before my very eyes, 52 GPU tasks appeared.

Thanks all.

Cheers,

Brett
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Message 1731945 - Posted: 4 Oct 2015, 23:05:58 UTC

i still have no gpu tasks ati or nvidia
I came down with a bad case of i don't give a crap
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