Overclock.net › Forums › Graphics Cards › AMD/ATI › Which 7970's have unlocked voltage?
New Posts  All Forums:Forum Nav:

Which 7970's have unlocked voltage? - Page 2

post #11 of 16
Quote:
Originally Posted by kenpachiroks View Post

Quote:
Originally Posted by tsm106 View Post

That's the last card you want due to its seriously low asic binning. Ya want something typically binned higher. The problem is hoever that all these customs have gotten out of hand and its impossible to tell what you're going to get nowadays. You used to be able to get the Sapphire 7970 OC which was a reference pcb with an extra phase and Sapphire binned these typically with high asic which is ideal for folders/miners. With high asic cards, you can actually undervolt the card at moderate overclocks which will save you valuable dollars in savings on your electrical bill. Ask someone like sugarhell for more on that. IIRC he's running 1000/1500 at less than 1v.

A I said above, the problem is that these AIB are always changing their skus so you never know what you get. The 7970 OC card is now gone and replaced with the Vapor X pcb. That totally bites and the 7970 OC is not as attractive as before the change.

So these low binned lightnings run much hotter? So then what is the point of these custom cards. Are they aimed only at the sub zero overclockers?


Well... there's a reason they come with a LN2 bios. wink.gif
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
post #12 of 16
Actually really low binned cards like 60 % is bad for normal users. I prefer 70-75% for watercooling and 85-90 % for folding-mining.But its way more difficult to find a 90% ASIC card than to find a card that can do 1300 tongue.gif

Either way when you have a low asic chip you can throw a lot of volts on them. If you go lower than that you are limited from the volts (1.3v~)


For example i have 2 cards with 85-88 % asic.

Here my 85%:



Here my 87%



The 87% one is a sapphire 7970 oc with the reference pcb such a beast card. Its also good under water
Workstation
(4 items)
 
  
CPUMotherboardGraphicsMonitor
Xeon E5-2690 Supermicro 2011 Nvidia GP100/ Vega FE Dell ultrasharp 4k 
  hide details  
Reply
Workstation
(4 items)
 
  
CPUMotherboardGraphicsMonitor
Xeon E5-2690 Supermicro 2011 Nvidia GP100/ Vega FE Dell ultrasharp 4k 
  hide details  
Reply
post #13 of 16
I'm thinking of going with the same Gigabyte card OP was looking at for a folding at home build. It would be really nice to have voltage control but saving $50 per card is more important. I still haven't really figured out if these new locked cards can be flashed with higher end bioses that allows voltage control or if it is a permanent lock but I will find out once I have my cards I guess.
post #14 of 16
Quote:
Originally Posted by raptorxrx View Post

I was almost set on buying a Gigabyte Windforce until I realized revision 2.1 is voltage locked frown.gif

Which non-reference cards are currently unlocked? I need a non-reference card so I can fold at night and still sleep at night smile.gif

Also, I wouldn't mind buying used, so if any one has a voltage unlocked card, shoot me an offer wink.gif

I can't find any current threads on it.


My MSI is Unlocked, and I OC's very well. Its the Ref OC.
post #15 of 16
Get the Sapphire 7970. I have one, and it runs great. I just discovered that Trixx is useless at OCing. It imposes a software-based lock on voltage, and the VDDC slider does nothing. When I switched to Afterburner (which was on my machine from when I had a 560 Ti), everything worked. Voltages were accurate quick to change and accurate. I've got it at 1200MHz/1600MHz now, and it seems stable with a max temp of 65*C.
Skullpture
(20 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 2600k MSI P67A-GD65 Sapphire HD 7970 OC Corsair Vengeance 
Hard DriveHard DriveCoolingOS
OCZ Vector Samsung Spinpoint F3 Corsair H50 Windows 7 64-bit 
MonitorMonitorMonitorKeyboard
Samsung PX2370 Samsung PX2370 Samsung PX2370 Logitech G110 
PowerCaseMouseAudio
ThermalTake ToughPower XT 775W CoolerMaster HAF 912 Logitech G500 AudioTechnica ATH-M50 
OtherOther
AudioLion ModMic  TurtleBeach DSS 7.1 
  hide details  
Reply
Skullpture
(20 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 2600k MSI P67A-GD65 Sapphire HD 7970 OC Corsair Vengeance 
Hard DriveHard DriveCoolingOS
OCZ Vector Samsung Spinpoint F3 Corsair H50 Windows 7 64-bit 
MonitorMonitorMonitorKeyboard
Samsung PX2370 Samsung PX2370 Samsung PX2370 Logitech G110 
PowerCaseMouseAudio
ThermalTake ToughPower XT 775W CoolerMaster HAF 912 Logitech G500 AudioTechnica ATH-M50 
OtherOther
AudioLion ModMic  TurtleBeach DSS 7.1 
  hide details  
Reply
post #16 of 16
To be honest, as asic is just a rough guideline.

I have three lightning's and each is at a different asic voltage (1.050, 1.112, 1.175). Msialex explained way back when these were released that they simply bin chips by hitting 1070 at stock voltage. There is no sort or selection based on asic percentage.

Remember, these lightning's do eat a lot more power at the same clocks/volts as reference because of the PCB design, so there is bound to be more heat generated over the entire card.

Interms of max oc, the 1.175 (lowest asic) hits the highest clocks @ 1335 while only Hitting max 40* under water. The 1.112 maxes at 1310 and the 1.050 @ 1300.

The biggest differences between them is the vdroop. 1.05 highest droop (.8v @ 1.35) 1.112 middle (.7-.8 @ 1.35v) 1.175 lowest (.45v @ 1.35).
     
CPUMotherboardGraphicsRAM
intel 3960x @4.7 ghz asrock extreme9 x79 3x msi 7970 lightnings g.skill ripjawx 1600 cl8 
Hard DriveOptical DriveCoolingMonitor
ssd: kingston hyperx 120gb hdd: seagate barracu... bd-rwh water for cpu benq 2420t 24" 120hz 
Case
mountain mods extended asension 
CPUMotherboardGraphicsRAM
3960x Asrock Extreme9 2x Sapphire 6950 unlocked G.skill CL8 12800 x4 (4gb) 
Hard DriveHard DriveOptical DriveCooling
Kingston hyperx  Seagate barracuda xt 7200/ sata3/ 64 mb cache LiteOn BD-R x12 Watercooling 
OSMonitorPowerCase
win 7 x64 asus 23" 1080p 1000W Thermaltake toughpower HAX 932 Advanced (modified for Radiators on ins... 
MouseAudio
Razer Deathhadder 3.5g sennheiser PC 330, Game blaster with Extreme9 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
intel 3960x @4.7 ghz asrock extreme9 x79 3x msi 7970 lightnings g.skill ripjawx 1600 cl8 
Hard DriveOptical DriveCoolingMonitor
ssd: kingston hyperx 120gb hdd: seagate barracu... bd-rwh water for cpu benq 2420t 24" 120hz 
Case
mountain mods extended asension 
CPUMotherboardGraphicsRAM
3960x Asrock Extreme9 2x Sapphire 6950 unlocked G.skill CL8 12800 x4 (4gb) 
Hard DriveHard DriveOptical DriveCooling
Kingston hyperx  Seagate barracuda xt 7200/ sata3/ 64 mb cache LiteOn BD-R x12 Watercooling 
OSMonitorPowerCase
win 7 x64 asus 23" 1080p 1000W Thermaltake toughpower HAX 932 Advanced (modified for Radiators on ins... 
MouseAudio
Razer Deathhadder 3.5g sennheiser PC 330, Game blaster with Extreme9 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › Which 7970's have unlocked voltage?