gemini (OP)
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December 11, 2013, 01:32:08 AM |
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Hi there Is there any way to undervolt r9 280x under linux (SMOS/BAMT to be exact)? I've seen people changing BIOS for HD7970 to undervolt but didn't found any bios editor for r9 280x. Anyway would rather like use software command if possible. Or I have to use Windows for that purpose?
Cgminer of course ignores voltage settings.
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waltermot321
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December 11, 2013, 12:58:38 PM |
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Hi there Is there any way to undervolt r9 280x under linux (SMOS/BAMT to be exact)? I've seen people changing BIOS for HD7970 to undervolt but didn't found any bios editor for r9 280x. Anyway would rather like use software command if possible. Or I have to use Windows for that purpose?
Cgminer of course ignores voltage settings.
Use window...
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vpasic
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December 11, 2013, 01:06:55 PM |
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tried in windows, same thing! Cgminer ignores voltage settings!
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Tips: 1Ejj8eANy2PLZVwrWUczkbQ8kQY2JhKqp6
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Noruka
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December 11, 2013, 02:59:58 PM |
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not all R9 280x are unlockable. My 280x are the MSI version and i believe (from what i remember researching when i bought them) i could only find that the saphhire and MSI ones were unlockable.
I use MSI afterburner to undervolt my MSI 280xs and AMD catalyst to undervolt my 290s
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phaddie
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December 14, 2013, 05:48:31 AM |
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How do you undervolt your R9 290 using catalyst? I have been trying for days but I can find my voltage control.
Sorry to highjack the thread.
Phad
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LightningBlade
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December 16, 2013, 04:08:34 PM |
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How do you undervolt your R9 290 using catalyst? I have been trying for days but I can find my voltage control.
Sorry to highjack the thread.
Phad
You can't, because its R9 290.... wait until they come out with a later version...
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Prelude
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December 17, 2013, 01:34:44 PM |
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not all R9 280x are unlockable. My 280x are the MSI version and i believe (from what i remember researching when i bought them) i could only find that the saphhire and MSI ones were unlockable.
I use MSI afterburner to undervolt my MSI 280xs and AMD catalyst to undervolt my 290s
Could you possibly share your MSI 's BIOS? My MSI 280x cards are locked.
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boxofspuds
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December 18, 2013, 09:21:50 AM |
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Hi there Is there any way to undervolt r9 280x under linux (SMOS/BAMT to be exact)? I've seen people changing BIOS for HD7970 to undervolt but didn't found any bios editor for r9 280x. Anyway would rather like use software command if possible. Or I have to use Windows for that purpose?
Cgminer of course ignores voltage settings.
not the prettiest or simplest while looking for that stable voltage, but this looks to be a verified way to undervolt in linux. http://www.cryptobadger.com/2013/10/undervolting-in-linux-via-modified-bios/not sure if it is working 280xs though... also what kind of card do you have. it simply may not be voltage unlocked in the first place. Could you possibly share your MSI 's BIOS? My MSI 280x cards are locked.
http://www.techpowerup.com/vgabios/146769/msi-r9280x-3072-131009.htmlBut youre MSI should NOT be vltage locked. There's a setting in MSI afterburner that "unlocks" the voltage settings or something like that I think. this thread talks about it https://litecointalk.org/index.php?topic=8435.0
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cowandtea
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December 18, 2013, 02:43:13 PM |
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tried in windows, same thing! Cgminer ignores voltage settings!
USE afterburner, should work better then cgminer....
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JCviggen
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December 18, 2013, 02:48:14 PM |
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How do you undervolt your R9 290 using catalyst? I have been trying for days but I can find my voltage control.
Sorry to highjack the thread.
Phad
Use msi afterburner. But undervolting is a bit tricky because the memory OC goes to crap if you reduce the voltage on the 290.
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Age Of Mars | GameFI Virtual colonization of Mars
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cowandtea
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December 18, 2013, 02:54:51 PM |
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How do you undervolt your R9 290 using catalyst? I have been trying for days but I can find my voltage control.
Sorry to highjack the thread.
Phad
Use msi afterburner. But undervolting is a bit tricky because the memory OC goes to crap if you reduce the voltage on the 290. What do you mean? Like crashes?
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phaddie
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December 18, 2013, 03:49:21 PM |
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I found settings without undervolting that got me to 840 Kh/s at 83 degrees and ~65% fan. I feel good about that so I am not going to bother undervolting until I have a few more cards and power becomes a much bigger issue.
Phad.
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Lewnatic
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January 11, 2014, 07:26:20 PM |
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Would be nice which settings you are using for get 840kh/s
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crazyates
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Activity: 952
Merit: 1000
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January 11, 2014, 07:30:04 PM |
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Hi there Is there any way to undervolt r9 280x under linux (SMOS/BAMT to be exact)? I've seen people changing BIOS for HD7970 to undervolt but didn't found any bios editor for r9 280x. Anyway would rather like use software command if possible. Or I have to use Windows for that purpose?
Cgminer of course ignores voltage settings.
not the prettiest or simplest while looking for that stable voltage, but this looks to be a verified way to undervolt in linux. http://www.cryptobadger.com/2013/10/undervolting-in-linux-via-modified-bios/not sure if it is working 280xs though... also what kind of card do you have. it simply may not be voltage unlocked in the first place. Confirmed that VBE7 does work with 280x cards. Flashed half a dozen Gigabyte 280xs this week, and they're all hashing @ 725KH/s @ 1.019V. Dropped consumption for a 5 GPU rig frim 1450W to 1250W, and lower temps as well. Test on one going lower and lower, and then flashing the others only took me ~5-10 minutes per card.
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hulk
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January 12, 2014, 09:33:31 AM |
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Hi there Is there any way to undervolt r9 280x under linux (SMOS/BAMT to be exact)? I've seen people changing BIOS for HD7970 to undervolt but didn't found any bios editor for r9 280x. Anyway would rather like use software command if possible. Or I have to use Windows for that purpose?
Cgminer of course ignores voltage settings.
I am not sure but it should work the same way using HD 7970...
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Gazza1
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January 14, 2014, 12:57:05 PM |
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Confirmed that VBE7 does work with 280x cards. Flashed half a dozen Gigabyte 280xs this week, and they're all hashing @ 725KH/s @ 1.019V. Dropped consumption for a 5 GPU rig frim 1450W to 1250W, and lower temps as well. Test on one going lower and lower, and then flashing the others only took me ~5-10 minutes per card.
Hey bro is your 1.019 the VBE7 setting or what GPUZ reports?
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Impossible is a word found only in the dictionary of fools.
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crazyates
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Activity: 952
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January 14, 2014, 01:29:39 PM |
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Confirmed that VBE7 does work with 280x cards. Flashed half a dozen Gigabyte 280xs this week, and they're all hashing @ 725KH/s @ 1.019V. Dropped consumption for a 5 GPU rig frim 1450W to 1250W, and lower temps as well. Test on one going lower and lower, and then flashing the others only took me ~5-10 minutes per card.
Hey bro is your 1.019 the VBE7 setting or what GPUZ reports? I'm using Linux, so I can't tell you what GPUz reports. I do know that the 1.019V is what VBE7 reports, and then after the flash CGMiner reports the same value. Also, power consumption dropped by ~200W for the 5 GPU rig, and temps went down a good bit as well, so I'm pretty confident that it worked.
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Evil-Knievel
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January 14, 2014, 01:31:37 PM Last edit: April 17, 2016, 09:24:52 PM by Evil-Knievel |
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This message was too old and has been purged
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Gazza1
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January 14, 2014, 01:36:52 PM |
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Confirmed that VBE7 does work with 280x cards. Flashed half a dozen Gigabyte 280xs this week, and they're all hashing @ 725KH/s @ 1.019V. Dropped consumption for a 5 GPU rig frim 1450W to 1250W, and lower temps as well. Test on one going lower and lower, and then flashing the others only took me ~5-10 minutes per card.
Hey bro is your 1.019 the VBE7 setting or what GPUZ reports? I'm using Linux, so I can't tell you what GPUz reports. I do know that the 1.019V is what VBE7 reports, and then after the flash CGMiner reports the same value. Also, power consumption dropped by ~200W for the 5 GPU rig, and temps went down a good bit as well, so I'm pretty confident that it worked. Very nice
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Impossible is a word found only in the dictionary of fools.
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fran2k
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January 22, 2014, 01:44:16 AM |
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ATIFLASH or ATIWINFLASH will work for flashing the BIOS.
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