Overclock.net › Forums › Graphics Cards › AMD/ATI › ATI Drivers and Overclocking Software › GIGABYTE 4 - 7970 OC GPUS
New Posts  All Forums:Forum Nav:

GIGABYTE 4 - 7970 OC GPUS

post #1 of 8
Thread Starter 
guys just ordered and will be geting 7970 QUAD GIGABYTE OC EDITION GPUS .

i have an evga sr 2 mobo sold my quad 580 .

amywyay wanted to ask if i can over clock these gpus via after burner but i keep on reading that most 7970 are locked voltage wise .

so how do i over coem this - i am new here so some help is apprecaited .

want to over clock them as well .

2ndly i have 3 - dell 30 inch lcd and i want to do eye finity -

so do i have to get a mini display port to dual link dvi connector if i want to do eye finity
or can i run a normal active mini display port to dvi connector.
post #2 of 8
Quote:
Originally Posted by muhd86 View Post

guys just ordered and will be geting 7970 QUAD GIGABYTE OC EDITION GPUS .
i have an evga sr 2 mobo sold my quad 580 .
amywyay wanted to ask if i can over clock these gpus via after burner but i keep on reading that most 7970 are locked voltage wise .
so how do i over coem this - i am new here so some help is apprecaited .
want to over clock them as well .
2ndly i have 3 - dell 30 inch lcd and i want to do eye finity -
so do i have to get a mini display port to dual link dvi connector if i want to do eye finity
or can i run a normal active mini display port to dvi connector.

You'll be able to get them up to 1.3v in afterburner. When you get them, post/reply/pm me and I'll tell you how.

You just need to do a simple afterburner unlock by going into one of afterburner's installation files and adding two lines.

I used to own three in trifire but I took em out and still have them lying around because I'm a silence freak (two DC2 triple slots are silent). They're beasts and with the new drivers you'll enjoy them smile.gif.

TBH going to 1.3v doesn't make a difference though. With me 1.24v peaked me out at 1.22ghz in trifire and up to 1.3 wouldn't give me 5mhz more.

I would honestly recommend the 7970 lightnings for your purpose though as you seem to want to get the maximum performance and the lightnings are more likely to get you that extra couple of mhz out of the core and memory due to higher voltage cap (limit) and ability to increase the bus voltage a teency bit. I would have bought the lightnings but at the time they weren't released frown.gif
    
CPUMotherboardGraphicsRAM
4930k Rampage 4 extreme GTX Titan (SLI) Corsair dominator platinum 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 pro Vertex 4 12x Bluray Pioneer H100 
CoolingOSMonitorKeyboard
Noctua NF-F12 Windows 8 Pro 64 bit Qnix 2710 @ 120.1hz Razer blackwidow 
PowerCaseMouseMouse Pad
Seasonic 1300w Cosmos 2 Razer Taipan Razer Goliathus Extended 
AudioAudioAudio
Xonar Essence STX ATH-AD2000X Bose Companion 20 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
4930k Rampage 4 extreme GTX Titan (SLI) Corsair dominator platinum 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 pro Vertex 4 12x Bluray Pioneer H100 
CoolingOSMonitorKeyboard
Noctua NF-F12 Windows 8 Pro 64 bit Qnix 2710 @ 120.1hz Razer blackwidow 
PowerCaseMouseMouse Pad
Seasonic 1300w Cosmos 2 Razer Taipan Razer Goliathus Extended 
AudioAudioAudio
Xonar Essence STX ATH-AD2000X Bose Companion 20 
  hide details  
Reply
post #3 of 8
Thread Starter 
ppl keep on me telling me 2 lines -to be added to config file --what are these 2 lines --i cant seem to find out .

would appreciate some help
post #4 of 8
Gigabyte has changed their 7970 models regarding voltage recently, if your card has product code GV-R797OC-3GD (1000MHz stock core clock) it's voltage locked to 1.175v frown.gif MSI Afterburner unlocking only affects how much you can raise clocks, not voltage limits. Flashing different bios doesn't help. My experience with the card was that stock voltage limited the card badly when overclocking, couldn't get more than 1030MHz stable.

Gigabyte 7970 GHz Edition (1100MHz stock core clock) has voltage of 1.25v so it's better for overclocking.
Omega Ray
(16 items)
 
  
CPUMotherboardGraphicsRAM
5820K @ 4,3GHz Asus X99-A USB 3.1 Palit Jetstream GTX 1070 16GB Kingston 2666MHz DDR4 
Hard DriveHard DriveCoolingOS
OS: Intel 520 180GB  Games: Crucial BX100 500GB  Noctua NH-D15S Windows 10 Pro X64 
MonitorKeyboardPowerCase
Acer Predator XB270HU  Ozone Tenkeyless MX Brown Corsair AX860i Cooltek W2 Window 
MouseAudio
Mionix Naos 7000 Schiit Modi & Vali + Beyerdynamics DT 990 Pro 
  hide details  
Reply
Omega Ray
(16 items)
 
  
CPUMotherboardGraphicsRAM
5820K @ 4,3GHz Asus X99-A USB 3.1 Palit Jetstream GTX 1070 16GB Kingston 2666MHz DDR4 
Hard DriveHard DriveCoolingOS
OS: Intel 520 180GB  Games: Crucial BX100 500GB  Noctua NH-D15S Windows 10 Pro X64 
MonitorKeyboardPowerCase
Acer Predator XB270HU  Ozone Tenkeyless MX Brown Corsair AX860i Cooltek W2 Window 
MouseAudio
Mionix Naos 7000 Schiit Modi & Vali + Beyerdynamics DT 990 Pro 
  hide details  
Reply
post #5 of 8
Thread Starter 
what about ccc -- how much can u over clock with the CCC / some ppl used trixx software to use voltage functions --

i dont know the exact model might be this --but surely there must be a way to get voltages voltages to be unlocked ,
post #6 of 8
Quote:
Originally Posted by Seid Dark View Post

Gigabyte has changed their 7970 models regarding voltage recently, if your card has product code GV-R797OC-3GD (1000MHz stock core clock) it's voltage locked to 1.175v frown.gif MSI Afterburner unlocking only affects how much you can raise clocks, not voltage limits. Flashing different bios doesn't help. My experience with the card was that stock voltage limited the card badly when overclocking, couldn't get more than 1030MHz stable.
Gigabyte 7970 GHz Edition (1100MHz stock core clock) has voltage of 1.25v so it's better for overclocking.

Wow that's ***, I never even knew that. When I had mine they would go up to 1.3.....

TBH anything over 1.25v is almost useless (I guarantee) until 1.3v for several reasons.

The gigabyte coolers (stock is terrible) and their windforce has a very thin heatsink with a decent heat capacity. Try it, put your fan on 64% and put it on 100%. If you get more than a 2 degree difference in ANY kind of load (in a well ventilated case like a haf X) I'll be damned.

Furthermore the majority of cards hit a wall between 1.2-1.3ghz anyway and you'd need better cooling or a ridiculous voltage with decent cooling to overcome this. My gigabyte cards would artifact at 72 degrees for some reason (64-78-82 asic mine were) in tri-fire so any higher voltage wouldn't give me anything anyway...

If the cards are locked to 1.175 then get the lightnings or the gigahertz edition then. 1.25v is all you'll need.

Enjoy!



If you were wondering read this:
Quote:
To enable the unofficial overclocking in this version it is necessary to edit the MSIAfterburner.cfg file located in the installation directory of AfterBurner (typically Program Files (x86) MSI Afterburner):


You need to alter the following:
Seek UnofficialOverclockingEULA field and add following text:
I confirm that I am aware of unofficial overclocking limitations and fully understand that MSI will not provide me any support on it
Set UnofficialOverclockingMode to 1 to keep PowerPlay active (may not work on old ASICs), 2 to traditionally disable PowerPlay or to 0 to temporary disable unofficial overclocking path
Using the unofficial overclock method opens up more freedom in terms of voltages and clock ranges, it however also can open a can of worms in terms of stability or weird issues.


I stopped using afterburner so I cannot confirm this works in the latest version, but it used to work (asus locks your overclocking unless you use their utility).

Btw no offense meant as I realize that this is what this forum is for but googling "msi afterburner unlocking" or anything similar would work.

Regardless, I hope you enjoy your cards and no offense meant seriously!thumb.gif
    
CPUMotherboardGraphicsRAM
4930k Rampage 4 extreme GTX Titan (SLI) Corsair dominator platinum 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 pro Vertex 4 12x Bluray Pioneer H100 
CoolingOSMonitorKeyboard
Noctua NF-F12 Windows 8 Pro 64 bit Qnix 2710 @ 120.1hz Razer blackwidow 
PowerCaseMouseMouse Pad
Seasonic 1300w Cosmos 2 Razer Taipan Razer Goliathus Extended 
AudioAudioAudio
Xonar Essence STX ATH-AD2000X Bose Companion 20 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
4930k Rampage 4 extreme GTX Titan (SLI) Corsair dominator platinum 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 pro Vertex 4 12x Bluray Pioneer H100 
CoolingOSMonitorKeyboard
Noctua NF-F12 Windows 8 Pro 64 bit Qnix 2710 @ 120.1hz Razer blackwidow 
PowerCaseMouseMouse Pad
Seasonic 1300w Cosmos 2 Razer Taipan Razer Goliathus Extended 
AudioAudioAudio
Xonar Essence STX ATH-AD2000X Bose Companion 20 
  hide details  
Reply
post #7 of 8
Thread Starter 
any way to use after burner or any software which will allow me to play with voltages of gigabye 7970
post #8 of 8
Thread Starter 
so he card is locked then i agree max stable is 1030 on the core ----if u take it above this it crashes badly , as i have 4 of them i am desperately searching for a way to over clock the gpus but i dont think ic an do it .

sapphire trixx does not help either ....

frustration is kicking in .
New Posts  All Forums:Forum Nav:
  Return Home
Overclock.net › Forums › Graphics Cards › AMD/ATI › ATI Drivers and Overclocking Software › GIGABYTE 4 - 7970 OC GPUS