Successful 5830 Underclock... Ubuntu 11.04

[BitCointransfers]

Hey guys finally figured out the memory underclock on my sapphires 5830's using atiflash and RBE.. I modifed the RAM setting under "Clock Info 02" to 300, then went into additional features and set the upper limit GPU setting to 1000.   Currently stable running clock speed at 985 and memory at 300 .  Now when I go to clock speed 1000 I get cards going to offline..  Do I need to update voltage levels to run the clock at max speed. speed, if so do I change it also under "Clock Info 02"??

[dukejer]

Hey guys finally figured out the memory underclock on my sapphires 5830's using atiflash and RBE.. I modifed the RAM setting under "Clock Info 02" to 300, then went into additional features and set the upper limit GPU setting to 1000.   Currently stable running clock speed at 985 and memory at 300 .  Now when I go to clock speed 1000 I get cards going to offline..  Do I need to voltage levels to run the clock at max speed. speed, if so do I change it also under "Clock Info 02"??

Hi BitCointransfers,

When I modified my Sapphire 5830's I only went to the clocks tab and then modified both the GPU and Memory clocks under the boot info.

-Dukejer

[BitCointransfers]

Hi Dukejer, by "boot" you mean the number "0" powerplay states structure right? When this "boot" is highlighted it turns "Clock Info00" settings Green, it is this section that you modifed only?

Thanks.

[dukejer]

Hi Dukejer, by "boot" you mean the number "0" powerplay states structure right? When this "boot" is highlighted it turns "Clock Info00" settings Green, it is this section that you modifed only?

Thanks.

Yes.  Clock Info 0.

-Dukejer

[J0k3r]

Hey guys, sorry for my bad english.
I have two 5830 and Windows 7.
I read this thread and download the RBE, but i cant work with this tool.
How can i load a BIOS ? I cant write in Clock info00 GPU or RAM or.....
I want to set up the RAM on 300-400 , how i can do this ? There are any other easier tools for a noob like me ?
Thanks for your help!