Hi Songbird,

. . May I ask what you are running?? Stock? Lunatics? And CUDA or S0G? There are tweaks to release the CPU from the monopolistic grip of SoG if you want to.

. . For the GTX970 if you are running SoG, in the command line file in your BOINC data directory "Projects/Seti@Home" called "mb_cmdline_win_x86_SSE3_OpenCL_NV.txt" (there may be _S0G after the NV if you are running r3500) [you can edit it with a text editor like Notepad] add "-high_prec_timer -use_sleep" you will then find your CPUs are no longer wholly monopolised.

Stephen

I'm running lunatics 0.45 beta for SoG.(MB8_win_x86_SSE3_OpenCL_NV_SoG_r3500.exe). I did the command line thing. CPU dropped significantly. It's better but still nothing like the CUDA apps from before.

Thanks!

---

Hi Songbird,
. . May I ask what you are running?? Stock? Lunatics? And CUDA or S0G? There are tweaks to release the CPU from the monopolistic grip of SoG if you want to.
. . For the GTX970 if you are running SoG, in the command line file in your BOINC data directory "Projects/Seti@Home" called "mb_cmdline_win_x86_SSE3_OpenCL_NV.txt" (there may be _S0G after the NV if you are running r3500) [you can edit it with a text editor like Notepad] add "-high_prec_timer -use_sleep" you will then find your CPUs are no longer wholly monopolised.
Stephen

I'm running lunatics 0.45 beta for SoG.(MB8_win_x86_SSE3_OpenCL_NV_SoG_r3500.exe). I did the command line thing. CPU dropped significantly. It's better but still nothing like the CUDA apps from before.
Thanks!

Hey Songbird,
Stephen will be able to help you with the specifics of the GTX970.
On my GTX750Ti: 4/gpu with cuda50 app is slightly better than 2/gpu with NV_SoG app (especially since there is no lag with cuda50).
On my GTX1060: 2/gpu with NV_SoG app is MUCH better than 4/gpu with cuda50 app.

My guess is: your GTX970 will be better off with 2tasks/gpu with NV_SoG ...if there is no lag and you need to use your rig at the same time

Keep in mind that all these differences are with running MrKevvy's app to optimize your CPU & GPU queues.
see: https://setiathome.berkeley.edu/forum_thread.php?id=79954

Cheers,
RobG

---

I opened the power supply and blew the dust out. No major concentration of dust there, so I also blew out any other dust I could find.

The 560 fan is at 100% but rather quiet, so I suspect that the loud fan was for something else. GPU temperature about 60 C.

CPU temperature is up to 77 C, so is there a similar program to provide a fan profile for the CPU? CPU tasks from other projects running on all but one of the CPU cores.

Rather open air path inside the case, with fans already at every place air should go out.

Probably at least 30 hours before I can tell if the invalids are gone.

. . Hi again,

. . OK you speak of fans everywhere air should go out. But do any of them blow air into the case? You need to think of the case as an air stream like a wind tunnel. The optimum cooling is an air stream (usually front to back) bringing in cooler, denser air from in front of the case and expelling hot air from the rear. This achieves maximum air flow over the devices and maximum cooling. Maybe you need to change the flow direction of one (or more) fans. If there is no fan at the front of the case but there is a place to mount one, consider doing so. And I would put the most powerful fan at the front to maximise the air pressure within the case. But that is my way of doing things :).

Stephen

.

. . Stubbs your back :)

. . It's been quiet without you :)

Stephen

.

I opened the power supply and blew the dust out. No major concentration of dust there, so I also blew out any other dust I could find.

The 560 fan is at 100% but rather quiet, so I suspect that the loud fan was for something else. GPU temperature about 60 C.

CPU temperature is up to 77 C, so is there a similar program to provide a fan profile for the CPU? CPU tasks from other projects running on all but one of the CPU cores.

Rather open air path inside the case, with fans already at every place air should go out.

Probably at least 30 hours before I can tell if the invalids are gone.

. . Hi again,

. . OK you speak of fans everywhere air should go out. But do any of them blow air into the case? You need to think of the case as an air stream like a wind tunnel. The optimum cooling is an air stream (usually front to back) bringing in cooler, denser air from in front of the case and expelling hot air from the rear. This achieves maximum air flow over the devices and maximum cooling. Maybe you need to change the flow direction of one (or more) fans. If there is no fan at the front of the case but there is a place to mount one, consider doing so. And I would put the most powerful fan at the front to maximise the air pressure within the case. But that is my way of doing things :).

Stephen

.

All the fans (top and upper rear) are blowing air out. The inlets (near the bottom front, and a long thin one at bottom rear) have no good place to mount a fan.

All the fans (top and upper rear) are blowing air out. The inlets (near the bottom front, and a long thin one at bottom rear) have no good place to mount a fan.

. . OK, well all you can do is make sure the air pathway is not obstructed at all. Or do what Wiggo would suggest and turn it into a "Borg" case, with a fan bolted to the outside of the side panel to pump air into the lower part of the case.

Stephen

.

CPU temperature is up to 77 C, so is there a similar program to provide a fan profile for the CPU? CPU tasks from other projects running on all but one of the CPU cores.

Normally, controlling the CPU fan profile is most easily done within the BIOS settings of the computer. Setting the profile to high performance or custom setting fan curves. Or just disable CPU fan control entirely and let the CPU fan run flat out all the time.

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Or just disable CPU fan control entirely and let the CPU fan run flat out all the time.

Sometimes the fan itself has a sensor (internal to the fan) which can't be controlled.

I always had in BIOS disabled "Quiet Fan" setting.
But on the same computer/motherboard when I changed the CPU the new fan "acts" on temperature.

Both bellow are "box" CPUs with stock AMD heatsink/fan (both fans 4-pin):
AMD Athlon 64 3500+ - fan had always spinning @ ~3500 RPM
AMD Athlon II X3 455 - fan changes speed 3000-5400 RPM depending how hot it feels itself

But yes, disabling CPU fan control in BIOS will give the max possible RPM

Of course there are also options to lower the load on CPU to cool it:
- run less tasks on CPU
- use TThrottle

---

 


- ALF - "Find out what you don't do well ..... then don't do it!" :)
 

CPU temperature is up to 77 C, so is there a similar program to provide a fan profile for the CPU? CPU tasks from other projects running on all but one of the CPU cores.

Normally, controlling the CPU fan profile is most easily done within the BIOS settings of the computer. Setting the profile to high performance or custom setting fan curves. Or just disable CPU fan control entirely and let the CPU fan run flat out all the time.

This computer makes the BIOS settings very hard to reach. I'm still trying, though.

Invalids and suspicious spikes have not stopped on my 560. I still think reducing CPU temperature is the next thing to try.

Robert miles: Please try to increase the corevoltage on the gpu a notch. You can use nvidia inspector to do so. Increase slowly each day to see if your problems dissapear.

---

_________________________________________________________________________
Addicted to SETI crunching!
Founder of GPU Users Group

Robert miles: Please try to increase the corevoltage on the gpu a notch. You can use nvidia inspector to do so. Increase slowly each day to see if your problems dissapear.

. . Hi Vyper,


. . He is using Afterburner at the moment so that will let him do that as well.

Stephen

Robert miles: Please try to increase the corevoltage on the gpu a notch. You can use nvidia inspector to do so. Increase slowly each day to see if your problems dissapear.

. . Hi Vyper,


. . He is using Afterburner at the moment so that will let him do that as well.

Stephen

I found the BIOS adjustments. Nothing relevant to fan speed was mentioned.

I found the portion of Afterburner relevant to GPU voltage. It's inactive unless you first change the settings to enable GPU voltage measurement and GPU voltage control, restart or reboot Windows, and open Afterburner. It then allows you to change the setting and see the result - but the result is no change in the GPU voltage, even after a Windows restart and Afterburner opening.

I've downloaded Nvidia Inspector, and plan to try it tomorrow.

I've downloaded Nvidia Inspector, and plan to try it tomorrow.

Might give EVGA's PrecisionX 16 a look.
I hate the interface, but it seems to work...

---

. . He is using Afterburner at the moment so that will let him do that as well.
Stephen

I found the BIOS adjustments. Nothing relevant to fan speed was mentioned.

I found the portion of Afterburner relevant to GPU voltage. It's inactive unless you first change the settings to enable GPU voltage measurement and GPU voltage control, restart or reboot Windows, and open Afterburner. It then allows you to change the setting and see the result - but the result is no change in the GPU voltage, even after a Windows restart and Afterburner opening.

I've downloaded Nvidia Inspector, and plan to try it tomorrow.

. . Sorry that AfterBurner didn't work for you on that, I have never actually changed GPU voltages myself because I don't overclock. But in the Bios often the only option on fans is to disable the fan "quiet" mode, which then let's the fans run at full speed all the time.

Stephen

.

I found the BIOS adjustments. Nothing relevant to fan speed was mentioned.

I found the portion of Afterburner relevant to GPU voltage. It's inactive unless you first change the settings to enable GPU voltage measurement and GPU voltage control, restart or reboot Windows, and open Afterburner. It then allows you to change the setting and see the result - but the result is no change in the GPU voltage, even after a Windows restart and Afterburner opening.

I've downloaded Nvidia Inspector, and plan to try it tomorrow.

. . Sorry that AfterBurner didn't work for you on that, I have never actually changed GPU voltages myself because I don't overclock. But in the Bios often the only option on fans is to disable the fan "quiet" mode, which then let's the fans run at full speed all the time.

Stephen

.

In this BIOS, not even that was available.

. . Sorry that AfterBurner didn't work for you on that, I have never actually changed GPU voltages myself because I don't overclock. But in the Bios often the only option on fans is to disable the fan "quiet" mode, which then let's the fans run at full speed all the time.
.

In this BIOS, not even that was available.

. . Bummer dude!

. . If it is any consolation one of my GPUs is beginning to get hot under the collar as our weather warms up. I am going to have to rethink the whole air stream pathway for that box. Good luck!

Stephen

. . Sorry that AfterBurner didn't work for you on that, I have never actually changed GPU voltages myself because I don't overclock. But in the Bios often the only option on fans is to disable the fan "quiet" mode, which then let's the fans run at full speed all the time.
.

In this BIOS, not even that was available.

. . Bummer dude!

. . If it is any consolation one of my GPUs is beginning to get hot under the collar as our weather warms up. I am going to have to rethink the whole air stream pathway for that box. Good luck!

Stephen

Remember that hot air rises, so a path that goes upward may help.

I assume that you've already blown all the dust off that GPU's heatsink.

Some graphics boards are designed so that they blow at least part of the air heated by the GPU out of the case, rather than circulating it within the case.

I found the BIOS adjustments. Nothing relevant to fan speed was mentioned.

I found the portion of Afterburner relevant to GPU voltage. It's inactive unless you first change the settings to enable GPU voltage measurement and GPU voltage control, restart or reboot Windows, and open Afterburner. It then allows you to change the setting and see the result - but the result is no change in the GPU voltage, even after a Windows restart and Afterburner opening.

I've downloaded Nvidia Inspector, and plan to try it tomorrow.

. . Sorry that AfterBurner didn't work for you on that, I have never actually changed GPU voltages myself because I don't overclock. But in the Bios often the only option on fans is to disable the fan "quiet" mode, which then let's the fans run at full speed all the time.

Stephen

.

In this BIOS, not even that was available.

Not sure if we're getting a confusion going here. CPU parameters will be in BIOS, GPU parameters in some aftermarket program like Afterburner ...

---

. . Bummer dude!

. . If it is any consolation one of my GPUs is beginning to get hot under the collar as our weather warms up. I am going to have to rethink the whole air stream pathway for that box. Good luck!

Stephen

Remember that hot air rises, so a path that goes upward may help.

I assume that you've already blown all the dust off that GPU's heatsink.

Some graphics boards are designed so that they blow at least part of the air heated by the GPU out of the case, rather than circulating it within the case.

. . Hi Robert,

. . I found a partial solution by blocking off a grill in the lower back panel. It was allowing cool air from the intake fan to pass along the side cover and straight out the back without cooling anything useful (apart from the side cover :) ).

. . This increases the air pressure within the case forcing more cool air up through the GPUs and other hardware. Also, since there is only a very narrow gap between the 2 GPUs (Gainward 970 Phoenix cards take up 2.5 slots :( ), I removed the I/O slot cover between the 2 GPUs to increase the air flow between them and this has dropped the upper card temp by 6 - 8 degrees. Not as low as I would like but enough to relax a bit. It was getting up to over 70 C, now running at about 62 C. A lot more civilised but I am still dreading summer :(.

Stephen

.

. . Sorry that AfterBurner didn't work for you on that, I have never actually changed GPU voltages myself because I don't overclock. But in the Bios often the only option on fans is to disable the fan "quiet" mode, which then let's the fans run at full speed all the time.

Stephen

.

In this BIOS, not even that was available.

Not sure if we're getting a confusion going here. CPU parameters will be in BIOS, GPU parameters in some aftermarket program like Afterburner ...

. . It may seem that way but no. The Bios reference was regarding the CPU fan, the afterburner reference was to controlling the GPU core voltage. Context is very important. :)

Stephen

.