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Message boards: Problems and Help: how to reduce GPU usage to 50%
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Rasmus
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Joined: 8 Sep 11Posts: 2ID: 111271Credit: 163,858RAC: 0
Message 40159- Posted: 8 Sep 2011 | 19:28:06 UTCLas t modified: 8 Sep 2011 | 19:55:05 UTC
hi
im new to this projekt and i got my GPU running now.
Ati HD 6850
but the temperatures are to high so i would like to reduce the usage of the GPU
lets say to about 50%.
i havent find any possibility to change that.
can anybody say mewhere to find this settings or if it isnt possible to change that?!
thanks a lot
: thx yes its a ATI HD6850
regards
Rasmus
ID: 40159 | Reply Quote
gazzyk1ns
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Joined: 2 Aug 11Posts: 419ID: 107047
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Message 40160- Posted : 8 Sep 2011 | 19:50:20 UTC - in respo nse to Message40159.Las t modified: 8 Sep 2011 | 20:02:30 UTC
Ati HD 6850 i think.
One thing:
Thisis a goo d tool to see your GPU details.
I do n't think the sensors are accurate, espe cially as it kee ps reporting m y fan spe ed to
me when I don't have a GPU fan. It really is a good tool for finding out the basics,
though.
ID: 40160 | Reply Quote
Michael GoetzVolunteer moderatorProject developerVolunteer developer
Volunteer testerProject scientist
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Message 40161- Posted : 8 Sep 2011 | 20:02:37 UTC - in respo nse to Message40159.
I'm not as familiar with ATI cards anymore, so I can't supply much in the way of details.
As far as I know, there are no tools to limit GPU utilization the way you can with the CPU.
However, what you sho uld be able to do is u se the overclocking too ls for your card to
UNDERCLOCK the GPU. R educe all the clock speed s to their minimum s ettings. This
probably won't get you down to 50%, but it should be enough to significantly drop the
temperatures.
While you're at it, set the fan speed to its maximum.
____________
My lucky number is 75898^524288+1
Mano laivas su o ro pagalve pilnas unguri
ID: 40161 | Reply Quote
gazzyk1nsMessage 40162- Posted : 8 Sep 2011 | 20:14:36 UTC - in respo nse to Message
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Send messa ge
Joined: 2 Aug 11Posts: 419ID: 107047Credit: 147,472,461RAC : 470,385
.
I'm not as familiar with ATI cards anymore, ...
As far as I know, there are no tool s to lim it GPU utilization the way you can with the CPU.
However, what you should be able to do is use the overclocking tools for your card to
UNDERCLOCK the GPU. Reduce all the clock speeds to their minimum settings.
That's as much as I know too, with the addition that it's very hard to underclock ATI/AMD
GPUs without flashing the BIOS, or doing something similar which is very risky and putting
your hardware in the hands of a 3rd party. The issue is complicated further by the fact
that some cards come overclocked in the box, a nd so might have a different or modified
BIOS, which confuses things. ATI cards these days come in more different forms thansomeone might expect, in that they call a mode l with DDR3 and GDDR5 the same name.
I got confused and took days to work out which one I wanted.
ID: 40162 | Reply Quote
uBronan
Send messa ge Joined: 13 Aug 11Posts: 36ID: 108419Credit: 3,587,642RAC: 0
Message 40163- Posted : 8 Sep 2011 | 21:08:52 UTCLas t modified: 8 Sep 2011 | 21:26:26 UTC
No it is actually kinda easy
Especially on newer models
Get yourself a copy of msi afterburner at
http://event.msi.com/vga/afterburner/download.htm
{ before one ask it works on every brand / model ati/nvidia }
Whe n you installed it set it to start with windowsThen you see some bars which to set mem ory and core speed
To get our cards making less heat no ex tremes have to be done
Mine runs normally at 850 and mem ory at 1200
To get it to run withing prope r cool settings i just set the core to 700 and i lowered the
memory to 750 which gives a huge drop of temps
Remind yourself the output drops as well
But to honest many boinc projects do not need high memory speeds, this is also where i
see the biggest drop in temperature (collatz is a project which needs high memory
speeds)
Now do n ot set it be low a certain minim um o r your system will crash
The lowest at which my card still runs ok is 450 on core and 400 at memory ( effective
this is 1600 mhz since its ddr5) some set it at 300 but for me the desk top becomes
sluggish which i do not like
Each time when you change something you need to apply
Now if you found the speeds you like best temperature wise you can save it as a default
with the numbers down under in my case i have 3 settings as preset
1. performance where i set it to actually run faster 890/1260
2. high core low memory 890/400
3. low temp running 450/400
If you need any help just send me a message
As a sidenote do not mess with voltage and such if you do not know what your doing with
this tool
ID: 40163 | Reply Quote
Rasmus
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Joined: 8 Sep 11Posts: 2ID: 111271Credit: 163,858RAC: 0
Message 40173- Posted : 9 Sep 2011 | 7:20:20 UTC - in response to Message40163.
in my CCC (driver panel) i can adjust my clock and memory a little bit.
but even if i drop everything to min it doesnt lower the temp very much. maybe about 8C
clock (600 - 850)mem ory(1000 - 1200)
is there any other way than by adjusting the clock?
like a hidden setting in boinc ?
thx a lot so far
RAsmus
ID: 40173 | Reply Quote
mikey
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Joined: 17 Mar 09
Message 40177- Posted : 9 Sep 2011 | 11:34:09 UTC - in respo nse to Message40173.
in my CCC (driver panel) i can adjust my clock and memory a little bit.
but even if i drop everything to min it doesnt lower the temp very much. maybe about 8C
clock (600 - 850)
memory(1000 - 1200)
is there any other way than by adjusting the clock?
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Posts: 224ID: 37043Credit: 61,082,036RAC: 0
like a hidden setting in boinc ?
thx a lot so far
RAsmus
Get yourself a copy of msi afterburner at
http://event.msi.com/vga/afterburner/download.htmIT WORKS
ID: 40177 | Reply Quote
Crystal Pellet
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Joined: 9 Nov 08Posts: 167ID: 31494Credit: 48,525,851RAC : 13,287
Message 40193- Posted : 9 Sep 2011 | 19:45:59 UTC - in respo nse to Message40159.
Ati HD 6850
but the temperatures are to high so i would like to reduce the usage of the GPU
lets say to about 50%.
i havent find any possibility to change that.
can anybody say me where to find this settings or if it isnt possible to change that?!
Try Fred Me lgert's TThrottle.
If GPU (can also be used for CPU) tempe rature raises the spee d decreases; as
temperature goe s down the spe ed is increased aga in.
____________
ID: 40193 | Reply Quote
roberto4u2*
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Joined: 11 Aug 11Posts: 24ID: 108167Credit: 60,880,364RAC: 0
Message 40259- Poste d: 13 Sep 2011 | 3:59:30 UTC
Just out of curiosity, what are you seeing your temps at where you feel they are too high?
What's the symptom you get that makes it such? Locking? freezing? shutdowns?
temperature probe? Noise?
The stock coolers on any decent (and recent) graphics card should be capable of cooling
the card to adequate levels if the case is cooled correctly and the room isn't too hot
(some more than others of course). If this is not your situation I think you might want to
address the case's cooling first if you can. It is typically a lot more beneficial in general
than under clocking your GPU and it has benefits for the rest of the computer as a whole
(especially your hard drive!). Fans are cheap. Zip ties for unruly cabling is even cheaper
still! But nothing beats a machine which is both fast as heck, cool, and quiet too.
Good cooling do esn't have to b e loud o r terribly expensive in order to be e ffective either.
With some more information on what case you have this equipment in and how many
fans it has (and where they are located and which direction they are blowing in) you might
be able to fully rectify the situation without reducing your machines performance with
nothing more than a couple of well placed fans or just changing the direction they are
blowing!
ID: 40259 | Reply Quote
sir sant
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Message 41898- Posted : 18 Oct 2011 | 21:51:09 UTC - in respo nse to Message40159.Las t modified: 18 Oct 2011 | 21:52:31 UTC
hi
im new to this projekt and i got my GPU running now.
Ati HD 6850
but the temperatures are to high so i would like to reduce the usage of the GPU
lets say to about 50%.
i havent find any possibility to change that.
can anybody say me where to find this settings or if it isnt possible to change that?!
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thanks a lot
: thx yes its a ATI HD6850
regards
Rasmus
6850 is a cool card byitself and has a lowish tdp, if its running hot - beyond 80 is hot for
6850 considering its low tdp - then something is wrong here. First thing to do, if gpu
cooler is not dusty and airflow in the case is good enough, is to downclock the memory
(pg-s pps sieves are not memory bound, so the speed of me mory can be de creased a lot
w\o im pacting wu runtimes significantly. Lowering the shaders\core spee d will impact the
runtimes hard) , lets say by 4 times (lower), and if that cant get the temp under control,
then you need a new cooler for the card. My cards temps here:http://www.upload.ee/image/1741599/netikasti_gpude_temperatuurid_2.jpg
ID: 41898 | Reply Quote
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