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Author Topic: how to underclock GPU ram  (Read 3459 times)
warrensgun
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June 03, 2011, 04:34:00 PM
 #1

I'm seeking a way to underclock the ram on a 5830 and 5830 at the command line in linux.

any ideas?

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exahash
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June 03, 2011, 05:23:11 PM
 #2

AMDOverdriveCtrl in batch mode.  If you create a profile and call it profile.ovdr the command is:  AMDOverdriveCtrl -b profile.ovdr

You can't overvolt with it, but it is the only way I've found in ubuntu to get memclocks below the overdrive range (aticonfig won't let you).
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June 03, 2011, 05:37:58 PM
 #3

I recommend using MSI afterburner to find a stable clock of your Core and Memory clock. you can than save to a profile and click on apply Overclocking on system startup.
There is a guide available here: MSI Afterburner Overclocking Guide

warrensgun
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June 03, 2011, 06:25:50 PM
 #4

The AMDOverdrive needs wxWidgets or so it says in the configure file.

what package is that in?

twitcoins
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June 03, 2011, 07:00:36 PM
 #5

I don't know what version you need, and I'm on Ubuntu LTS:

$ sudo apt-cache search wx | egrep -ai libwx
libwx-perl - interface to wxWidgets cross-platform GUI toolkit
libwx-perl-datawalker-perl - Perl data structure browser
libwx-perl-dialog-perl - abstract dialog class for simple dialog creation
libwx-perl-processstream-perl - access IO of external processes via events (Wx::Perl module)
libwx11-0 - library to manage xlib
libwx11-0-dbg - library to manage xlib - debug
libwx11-dev - library to manage xlib - devel
libwxsmithlib0 - wxSmith shared library (wxSmith is a Code::Blocks plugin for RAD GUI editing)
libwxsmithlib0-dev - wxSmith development files
libwxsvg-dev - C++ library to create, manipulate and render SVG files (devel)
libwxsvg0 - C++ library to create, manipulate and render SVG files
libwxbase2.6-0 - wxBase library (runtime) - non-GUI support classes of wxWidgets toolkit
libwxbase2.6-dbg - wxBase library (debug) - non-GUI support classes of wxWidgets toolkit
libwxbase2.6-dev - wxBase library (development) - non-GUI support classes of wxWidgets toolkit
libwxbase2.8-0 - wxBase library (runtime) - non-GUI support classes of wxWidgets toolkit
libwxbase2.8-dbg - wxBase library (debug) - non-GUI support classes of wxWidgets toolkit
libwxbase2.8-dev - wxBase library (development) - non-GUI support classes of wxWidgets toolkit
libwxgtk2.6-0 - wxWidgets Cross-platform C++ GUI toolkit (GTK+ runtime)
libwxgtk2.6-dbg - wxWidgets Cross-platform C++ GUI toolkit (GTK+ development)
libwxgtk2.6-dev - wxWidgets Cross-platform C++ GUI toolkit (GTK+ development)
libwxgtk2.8-0 - wxWidgets Cross-platform C++ GUI toolkit (GTK+ runtime)
libwxgtk2.8-dbg - wxWidgets Cross-platform C++ GUI toolkit (GTK+ debugging)
libwxgtk2.8-dev - wxWidgets Cross-platform C++ GUI toolkit (GTK+ development)
warrensgun
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June 03, 2011, 07:12:51 PM
 #6

looks like i needed

sudo apt-get install libwx-perl




itsagas
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June 03, 2011, 09:53:33 PM
 #7

AMDOverdriveCtrl in batch mode.  If you create a profile and call it profile.ovdr the command is:  AMDOverdriveCtrl -b profile.ovdr

You can't overvolt with it, but it is the only way I've found in ubuntu to get memclocks below the overdrive range (aticonfig won't let you).


so does anyone have the exact steps to do to underclock with AMDOverdriveCtrl?  that would be awesome help for linux noobs..
oyster2000
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June 03, 2011, 10:03:14 PM
 #8

AMDOverdriveCtrl -i

this will list each GPU by "active"

AMDOverdriveCtrl -i 0

will bring up the GUI for the first GPU so you can tweak settings and save a profile.

i noticed this also gives faster fan speed than aticonfig at 100%


brunoshady
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June 04, 2011, 12:38:40 AM
 #9

why underclock memory?
Freakin
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June 04, 2011, 12:42:15 AM
 #10

why underclock memory?

it's unnecessary for hashing and generates significant heat.  you can underclock memory to get a higher core without affecting temps
brunoshady
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June 04, 2011, 12:43:28 AM
 #11

why underclock memory?

it's unnecessary for hashing and generates significant heat.  you can underclock memory to get a higher core without affecting temps

ohh
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