Overclock/underclock Radeon 5970/5870 Linux outside BIOS Limits? - page 3.

padrino

legendary

Activity: 1428

Merit: 1000

https://www.bitworks.io

Quote from: Kermee on June 21, 2011, 11:52:03 AM

Catalyst 11.6 in Linux allows you to bypass the BIOS limits now. 11.5 didn't.

Code:

Adapter 0 - ATI Radeon HD 5800 Series
Core (MHz) Memory (MHz)
Current Clocks : 975 300
Current Peak : 975 300
Configurable Peak Range : [600-875] [900-1200]
GPU load : 99%

I've tested it on both Sapphire and Gigabyte 5830 cards.

Cheers,
Kermee

Great news, off to try it..

Drop your address off for a donation..

detroit

member

Activity: 69

Merit: 10

Rob P.

member

Activity: 84

Merit: 10

Quote from: Kermee on June 21, 2011, 11:52:03 AM

Catalyst 11.6 in Linux allows you to bypass the BIOS limits now. 11.5 didn't.

Code:

Adapter 0 - ATI Radeon HD 5800 Series
Core (MHz) Memory (MHz)
Current Clocks : 975 300
Current Peak : 975 300
Configurable Peak Range : [600-875] [900-1200]
GPU load : 99%

I've tested it on both Sapphire and Gigabyte 5830 cards.

Cheers,
Kermee

... Goes to download Catalyst 11.6 ...

Kermee

full member

Activity: 154

Merit: 100

Catalyst 11.6 in Linux allows you to bypass the BIOS limits now. 11.5 didn't.

Code:

Adapter 0 - ATI Radeon HD 5800 Series
Core (MHz) Memory (MHz)
Current Clocks : 975 300
Current Peak : 975 300
Configurable Peak Range : [600-875] [900-1200]
GPU load : 99%

I've tested it on both Sapphire and Gigabyte 5830 cards.

Cheers,
Kermee

detroit

member

Activity: 69

Merit: 10

For what it's worth, I've got two 5830s on two 64 bit ubnutu installations.
On the one that was upgraded to 11.04, I can't exceed the reported limits with software overclocking.
On the one that's still 10.04, I can. There were several differences in how I managed to get the drivers, etc installed on both, so I don't know what the difference is, or even how I'd go about trying to reproduce it, but it seems like there must be something...
The card that won't super-overclock is the primary card, handling the desktop, in a single-slot mobo.
The card that will is a secondary card in slot #2 that's not actively running the display.

hugolp

legendary

Activity: 1148

Merit: 1001

Radix-The Decentralized Finance Protocol

Quote from: Sideways on June 21, 2011, 02:14:00 AM

I've found that AMDOverdriveControl will put memory clock ranges outside that of what aticonfig --odgc reports. On my 5960's it will let me take the clock down to 75. The reported low is 1250, and the aticonfig command line refuses to clock under that. It will not mod the voltage or main clock speed outside the reported values.

Yes, I have found that AMDOverdriveCtrl lets you go outside the BIOS limits on the lower side, but never on the higher side.

Rob P.

member

Activity: 84

Merit: 10

Quote from: Inaba on June 21, 2011, 01:25:12 AM

You absolutely do NOT need to flash in Windows. And in fact, anyone who tells you to flash in Windows is ignorant of the dangers and should probably not be used for advice.

If you are going to flash your BIOS, which I do recommend for stable overclocking and memory underclocking, you should be using DOS and ATIFLASH. Flashing in Windows is just asking for trouble..

Windows / DOS. Yes, it should read DOS not Windows. The point was you cannot flash under Linux.

Sideways

newbie

Activity: 49

Merit: 0

I've found that AMDOverdriveControl will put memory clock ranges outside that of what aticonfig --odgc reports. On my 5960's it will let me take the clock down to 75. The reported low is 1250, and the aticonfig command line refuses to clock under that. It will not mod the voltage or main clock speed outside the reported values.

Inaba

legendary

Activity: 1260

Merit: 1000

You absolutely do NOT need to flash in Windows. And in fact, anyone who tells you to flash in Windows is ignorant of the dangers and should probably not be used for advice.

If you are going to flash your BIOS, which I do recommend for stable overclocking and memory underclocking, you should be using DOS and ATIFLASH. Flashing in Windows is just asking for trouble..

PC Surgeon

newbie

Activity: 42

Merit: 0

Quote from: Rob P. on June 19, 2011, 10:08:37 PM

Quote from: padrino on June 19, 2011, 09:13:06 PM

I have spent a considerable amount of time searching the forums and Googling for a way to set the core and memory clock on Linux (Ubuntu 11.04) outside of the bios limits. Many point to AMDOverdriveCtrl but in all of my testing it properly applies clocks if they are within the BIOS limits but do not if it's outside the BIOS limits, voltage is also spotty if outside the normal limits.

If anyone can provide any insight into how to do this without flashing BIOS (I will if I need to) I will be most grateful and will send a little BTC.

You must flash the BIOS from Windows. Period.

You might have to edit, save and export in windows but flashing? No.

EDIT: Technically you are right, its a Microsoft program "MS-DOS" Undecided

PC Surgeon

newbie

Activity: 42

Merit: 0

Honestly BIOS flashing is the way to go. But its been my experience that if clocked too low (memory) it will blue screen in windows. How it works for Ubuntu I haven't tried.

Have you ever tried BIOS flashing your graphics card? Its not as hard as it seems. All you need is a flash drive, MS-DOS, Radeon BIOS Editor and ATIFlash utility. I'll be happy to help if you need more detailed instructions.

Rob P.

member

Activity: 84

Merit: 10

Quote from: padrino on June 19, 2011, 09:13:06 PM

I have spent a considerable amount of time searching the forums and Googling for a way to set the core and memory clock on Linux (Ubuntu 11.04) outside of the bios limits. Many point to AMDOverdriveCtrl but in all of my testing it properly applies clocks if they are within the BIOS limits but do not if it's outside the BIOS limits, voltage is also spotty if outside the normal limits.

If anyone can provide any insight into how to do this without flashing BIOS (I will if I need to) I will be most grateful and will send a little BTC.

You must flash the BIOS from ~~Windows~~ DOS. Period.
Otherwise, you can under/over clock within the ranges listed with

Code:

aticonfig --odgc --adapter=all

If you want to be outside of those ranges, you'll need to flash an updated BIOS to the card.

Anyone telling you different either has a reference card (meaning it came straight from ATI) or they already flashed it in ~~Windows~~ DOS and forgot.

padrino

legendary

Activity: 1428

Merit: 1000

https://www.bitworks.io

I have spent a considerable amount of time searching the forums and Googling for a way to set the core and memory clock on Linux (Ubuntu 11.04) outside of the bios limits. Many point to AMDOverdriveCtrl but in all of my testing it properly applies clocks if they are within the BIOS limits but do not if it's outside the BIOS limits, voltage is also spotty if outside the normal limits.

If anyone can provide any insight into how to do this without flashing BIOS (I will if I need to) I will be most grateful and will send a little BTC.

Topic: Overclock/underclock Radeon 5970/5870 Linux outside BIOS Limits? - page 3. (Read 10078 times)