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Topic: Official R9 Graphics Card Voltage Locked/Unlocked list - page 2. (Read 31473 times)

full member
Activity: 238
Merit: 100
Has anyone tried VBE7 on the R9 290 Reference cards?
legendary
Activity: 3206
Merit: 1069
there is a guide for this?
full member
Activity: 238
Merit: 100
On linux what are you guys using with "unlocked" GPUs to alter voltage? atitweak?

A lot of guys just do it in cgminer with; --gpu-vddc 1100 or whatever voltage.

I have to say though, after reflashing all my cards with VBE7 I will forever do it this way from now on.  It's rock solid and you never have to worry about messing with it in software as the software doesn't always do it right and isn't always reliable.


To the guys who made VBE7 "Darkhmz, DroiDMester, & whoever else"; you guys rule and many thanks  Cool Grin
http://www.techpowerup.com/forums/threads/vbe7-vbios-editor-for-radeon-hd-7000-series-cards.189089/



The Sapphire Toxic 280x can be bios modified to lower the voltage.
how?

VBE7.  I can confirm it does work on the 280x toxic as I also did it yesterday.  I'm starting to wonder if most new cards can now be modified.  I made this thread before I knew about doing so.

http://rumorscity.com/2013/12/09/how-to-modify-video-bios-to-undervolt-gpu-in-linux/
http://www.techpowerup.com/forums/threads/vbe7-vbios-editor-for-radeon-hd-7000-series-cards.189089/


no dl link

The links are at the end of the 1st post on the page, they aren't easily seen at first glance.
http://www.techpowerup.com/forums/attachments/vbe7-0-0-7b-exe.52628/
hero member
Activity: 821
Merit: 1000
On linux what are you guys using with "unlocked" GPUs to alter voltage? atitweak?
legendary
Activity: 3206
Merit: 1069
The Sapphire Toxic 280x can be bios modified to lower the voltage.
how?

VBE7.  I can confirm it does work on the 280x toxic as I also did it yesterday.  I'm starting to wonder if most new cards can now be modified.  I made this thread before I knew about doing so.

http://rumorscity.com/2013/12/09/how-to-modify-video-bios-to-undervolt-gpu-in-linux/
http://www.techpowerup.com/forums/threads/vbe7-vbios-editor-for-radeon-hd-7000-series-cards.189089/


no dl link
full member
Activity: 238
Merit: 100
The Sapphire Toxic 280x can be bios modified to lower the voltage.
how?

VBE7.  I can confirm it does work on the 280x toxic as I also did it yesterday.  I'm starting to wonder if most new cards can now be modified.  I made this thread before I knew about doing so.

http://rumorscity.com/2013/12/09/how-to-modify-video-bios-to-undervolt-gpu-in-linux/
http://www.techpowerup.com/forums/threads/vbe7-vbios-editor-for-radeon-hd-7000-series-cards.189089/
legendary
Activity: 3206
Merit: 1069
The Sapphire Toxic 280x can be bios modified to lower the voltage.
how?
newbie
Activity: 16
Merit: 0
MSI R9 280x Gamers Edition = voltage locked
sr. member
Activity: 280
Merit: 250
Nice too see,
I have Asus 280x both the TOP(R9280X-DC2T-3GD5) and normal(R9280X-DC2-3GD5) editions are both unlocked.
legendary
Activity: 1386
Merit: 1003
What exactly does underclocking voltage do? I assume increased efficiency at the cost of hashrate.

Will a locked card get less hashrate?

Unlocked voltage means you can lower the voltage (to a degree) with zero loss of hashrate.  You save power and create less heat.   How low you can go varies even on the same exact model, kind of the luck of the draw.  Go to low and the card will crash.

A locked card simply means you have to live with the voltage that the factory has set for a specific speed so you can't lower it to save power. 
full member
Activity: 238
Merit: 100
Updated

Cheers guys Cheesy
legendary
Activity: 952
Merit: 1000
Thanks for this thread!

Locked:
280x Gigabyte GV-R928XOC-3GD

Locked within software but VBE7 BIOS moddable:
280x Gigabyte GV-R928XOC-3GD  1.09/1025/1500     725kh/s

So this card can be edited? I'm getting 6 in tomorrow, so I'll be reflashing them.

I'm also getting some PowerColor AXR9 290 4GBD5-MDHG/OC cards in, so I'll check those.
newbie
Activity: 57
Merit: 0
Unlocked:
Gigabyte R9-290 1.047 (AB 13.17 beta)    845kh/s
XFX R9-290A      1.047 (AB 13.17 beta)    845kh/s

Locked but VBE7 BIOS moddable:
Gigabyte GV-R795WF3-3GD     1.09/1133/1250     700kh/s
280x Gigabyte GV-R928XOC-3GD  1.09/1025/1500     725kh/s
Confirmed personally by me (my rigs)


Most of 7950,7970 and 280X are VBE7 BIOS moddable Smiley

Less voltage , less heat , less electricity bill Smiley
hero member
Activity: 770
Merit: 509
What exactly does underclocking voltage do? I assume increased efficiency at the cost of hashrate.

Will a locked card get less hashrate?
full member
Activity: 174
Merit: 100
Club3D Radeon R9 280X 3GB RoyalQueen CoolStream - Unlocked

Personal experience, I have a couple of these.
newbie
Activity: 16
Merit: 0
The Sapphire Toxic 280x can be bios modified to lower the voltage.
full member
Activity: 132
Merit: 100
Bitcoin FTW!
SAPPHIRE RADEON R9 280X OC (11221-00-25G)
ASUS R9 280X (R9280X-DC2T-3GD5)
Club3D Radeon R9 280X 3GB RoyalKing CoolStream (CGAX-R928X7O)

Anyone?
member
Activity: 60
Merit: 10
MSI R7950-TF3GD5/OCBE unlocked

MSI R7990-6GD5 voltage unlocked using afterburner beta 13.11
full member
Activity: 238
Merit: 100
Thanks Smiley
sr. member
Activity: 840
Merit: 255
SportsIcon - Connect With Your Sports Heroes
Locked but BIOS moddable: vtx3d 7970 X-edition


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