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Need help Overclocking water cooled 7970

post #1 of 7
Thread Starter 
Hi it's my first time overclocking a graphics card (oced quite a few cpus 920 930 E8400 QX9650 but never a vga since I like my systems to be quiet. Now that I wc that is no longer an issue my current pc specs are -

CF 7970 both w/ EK water blocks (copper) & backplates so extra VRM cooling... + excessive rads needed to fill a Caselabs TH10 smile.gif
I was uncertain the best way to do it and the recommended method to stress test ect .... so any recommendations would be great!
The primary questions are -

1) With WC what are my recommended max volts!

2)What should I go for, for a 24/7 stable oc ignoring the silicon lottery (since there is no point in trying to predict that). I see lots of people with the 7970 on air having issues stabilising the VGA with the core around 1150 point. Should I just go for 1100 or am I likely to be able to get 1200-1250 rock stable?

3) What program should I use to OC them CCC or MSI Afterburner or should I use something else and if I don't use CCC do i need to disable it/part of it? since I'll need to install it for vga drivers correct?

4) What programmes should i stress test it with to insure stability how long or how many runs!

Sorry for the excessive questions any help would be great! biggrin.gif
    
CPUMotherboardGraphicsGraphics
3930k w/ XSPC raystorm @ 4.8Ghz Rampage Extreme 4 w/ EK WB HD 7970 w/ EK WB Parallel HD 7970 w/ EK WB Parallel 
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CPUMotherboardGraphicsGraphics
3930k w/ XSPC raystorm @ 4.8Ghz Rampage Extreme 4 w/ EK WB HD 7970 w/ EK WB Parallel HD 7970 w/ EK WB Parallel 
RAMHard DriveHard DriveHard Drive
32GB of Mushkin PC3-14900 1866mhz 9-10-9-27 Red... Seagate 1tb x2 raid 0 M4 256gb SSD 2tb WD Green 
Optical DriveCoolingCoolingCooling
Samsung External SE-208 Phobya v.2 480 x 3 Phobya v1.2 480  Dual XSPC top w/ 2 x DDC -1 pump w/ DIYINHK Pum... 
CoolingOSMonitorKeyboard
2 x AC AQ5 lt w/ WB's 64bit windows 7 pro Samsung 2443BW+ Sidewinder X6 
PowerCaseMouseAudio
Enermax Platimax 1200w PSU Case Labs TH10 DeathAdder 3500dpi AKG Q701 
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ASUS Xonar One Dac Audioengine A5 Beyerdynamic MMX 300 
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post #2 of 7
Hello mate,
Currently testing my 3 water-cooled 7970's with heaven 2.5 as we speak on driver 8.95.5 and am finding that my break even point seems to be as follows:
  • 1.17v Vcore at 1200mhz
  • Std Voltage ram at 1600mhz.

More testing underway all night, plus increased memory voltage but I don't think I will be moving too far from these figures.
post #3 of 7
Thread Starter 
Thanks for the help the thing that i'm really uncertain about is :
Quote:
What program should I use to OC them CCC or MSI Afterburner or should I use something else and if I don't use CCC do i need to disable it/part of it? since I'll need to install it for vga drivers correct?

Anyone know what i should use!
    
CPUMotherboardGraphicsGraphics
3930k w/ XSPC raystorm @ 4.8Ghz Rampage Extreme 4 w/ EK WB HD 7970 w/ EK WB Parallel HD 7970 w/ EK WB Parallel 
RAMHard DriveHard DriveHard Drive
32GB of Mushkin PC3-14900 1866mhz 9-10-9-27 Red... Seagate 1tb x2 raid 0 M4 256gb SSD 2tb WD Green 
Optical DriveCoolingCoolingCooling
Samsung External SE-208 Phobya v.2 480 x 3 Phobya v1.2 480  Dual XSPC top w/ 2 x DDC -1 pump w/ DIYINHK Pum... 
CoolingOSMonitorKeyboard
2 x AC AQ5 lt w/ WB's 64bit windows 7 pro Samsung 2443BW+ Sidewinder X6 
PowerCaseMouseAudio
Enermax Platimax 1200w PSU Case Labs TH10 DeathAdder 3500dpi AKG Q701 
AudioAudioAudio
ASUS Xonar One Dac Audioengine A5 Beyerdynamic MMX 300 
  hide details  
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CPUMotherboardGraphicsGraphics
3930k w/ XSPC raystorm @ 4.8Ghz Rampage Extreme 4 w/ EK WB HD 7970 w/ EK WB Parallel HD 7970 w/ EK WB Parallel 
RAMHard DriveHard DriveHard Drive
32GB of Mushkin PC3-14900 1866mhz 9-10-9-27 Red... Seagate 1tb x2 raid 0 M4 256gb SSD 2tb WD Green 
Optical DriveCoolingCoolingCooling
Samsung External SE-208 Phobya v.2 480 x 3 Phobya v1.2 480  Dual XSPC top w/ 2 x DDC -1 pump w/ DIYINHK Pum... 
CoolingOSMonitorKeyboard
2 x AC AQ5 lt w/ WB's 64bit windows 7 pro Samsung 2443BW+ Sidewinder X6 
PowerCaseMouseAudio
Enermax Platimax 1200w PSU Case Labs TH10 DeathAdder 3500dpi AKG Q701 
AudioAudioAudio
ASUS Xonar One Dac Audioengine A5 Beyerdynamic MMX 300 
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post #4 of 7
Thread Starter 
Alternately does anyone know a good guide can't see any decent 7970 ones..... I know there is a ATI OC maestro somewhere on OCN:)

CCC or Afterburner?
    
CPUMotherboardGraphicsGraphics
3930k w/ XSPC raystorm @ 4.8Ghz Rampage Extreme 4 w/ EK WB HD 7970 w/ EK WB Parallel HD 7970 w/ EK WB Parallel 
RAMHard DriveHard DriveHard Drive
32GB of Mushkin PC3-14900 1866mhz 9-10-9-27 Red... Seagate 1tb x2 raid 0 M4 256gb SSD 2tb WD Green 
Optical DriveCoolingCoolingCooling
Samsung External SE-208 Phobya v.2 480 x 3 Phobya v1.2 480  Dual XSPC top w/ 2 x DDC -1 pump w/ DIYINHK Pum... 
CoolingOSMonitorKeyboard
2 x AC AQ5 lt w/ WB's 64bit windows 7 pro Samsung 2443BW+ Sidewinder X6 
PowerCaseMouseAudio
Enermax Platimax 1200w PSU Case Labs TH10 DeathAdder 3500dpi AKG Q701 
AudioAudioAudio
ASUS Xonar One Dac Audioengine A5 Beyerdynamic MMX 300 
  hide details  
Reply
    
CPUMotherboardGraphicsGraphics
3930k w/ XSPC raystorm @ 4.8Ghz Rampage Extreme 4 w/ EK WB HD 7970 w/ EK WB Parallel HD 7970 w/ EK WB Parallel 
RAMHard DriveHard DriveHard Drive
32GB of Mushkin PC3-14900 1866mhz 9-10-9-27 Red... Seagate 1tb x2 raid 0 M4 256gb SSD 2tb WD Green 
Optical DriveCoolingCoolingCooling
Samsung External SE-208 Phobya v.2 480 x 3 Phobya v1.2 480  Dual XSPC top w/ 2 x DDC -1 pump w/ DIYINHK Pum... 
CoolingOSMonitorKeyboard
2 x AC AQ5 lt w/ WB's 64bit windows 7 pro Samsung 2443BW+ Sidewinder X6 
PowerCaseMouseAudio
Enermax Platimax 1200w PSU Case Labs TH10 DeathAdder 3500dpi AKG Q701 
AudioAudioAudio
ASUS Xonar One Dac Audioengine A5 Beyerdynamic MMX 300 
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post #5 of 7
I would use msi afterburner, unlock the unofficialoverclocking and then just move the core speed up 10mhz and until u see artifcating or bsod. You might want to move up the voltage also, maybe to 1.250mv. make sure ati overdrive is not enabled, and have 20%+ in msi ab settings. Im sure u can hit 1250/1600 atleast, maybe even 1300core if u go 1.3v.
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Crucial M4 256GB WB 4TB External USB 3.0 HDD XSPC Raystorm CPU Water Block, 2x AX 480 Radiat... Windows 8.1 Pro 64Bit 
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Sig Rig
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Intel 5960x 4.5ghz  Asus X99 Extreme Evga 980Ti+EK Waterblock Evga 980Ti+EK Waterblock 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance 16GB 3000MHZ DDR4 Cas 16  2x Crucial 64gb Raid 0 Crucial M500 240GB 2TB WDC 7200RPM HDD 
Hard DriveHard DriveCoolingOS
Crucial M4 256GB WB 4TB External USB 3.0 HDD XSPC Raystorm CPU Water Block, 2x AX 480 Radiat... Windows 8.1 Pro 64Bit 
MonitorKeyboardPowerCase
Acer 28Inch Gsync 1440p Logitech G510s  Corsair AX1200 + Corsair RM 750 Case Labs STH10 
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post #6 of 7
Thread Starter 
Thanks thumb.gif
Should i start oc slowly at 10mhz at a time only once i'v pushed the core to ~1100mhz or is it best to push each one up slowly from reference core speed..... Also is there any issue with running CF while OCing or should i disable one?

And with each +10mhz do you run a few minutes MSI Kombustor?
Edited by 4514kaiser - 3/23/12 at 6:03am
    
CPUMotherboardGraphicsGraphics
3930k w/ XSPC raystorm @ 4.8Ghz Rampage Extreme 4 w/ EK WB HD 7970 w/ EK WB Parallel HD 7970 w/ EK WB Parallel 
RAMHard DriveHard DriveHard Drive
32GB of Mushkin PC3-14900 1866mhz 9-10-9-27 Red... Seagate 1tb x2 raid 0 M4 256gb SSD 2tb WD Green 
Optical DriveCoolingCoolingCooling
Samsung External SE-208 Phobya v.2 480 x 3 Phobya v1.2 480  Dual XSPC top w/ 2 x DDC -1 pump w/ DIYINHK Pum... 
CoolingOSMonitorKeyboard
2 x AC AQ5 lt w/ WB's 64bit windows 7 pro Samsung 2443BW+ Sidewinder X6 
PowerCaseMouseAudio
Enermax Platimax 1200w PSU Case Labs TH10 DeathAdder 3500dpi AKG Q701 
AudioAudioAudio
ASUS Xonar One Dac Audioengine A5 Beyerdynamic MMX 300 
  hide details  
Reply
    
CPUMotherboardGraphicsGraphics
3930k w/ XSPC raystorm @ 4.8Ghz Rampage Extreme 4 w/ EK WB HD 7970 w/ EK WB Parallel HD 7970 w/ EK WB Parallel 
RAMHard DriveHard DriveHard Drive
32GB of Mushkin PC3-14900 1866mhz 9-10-9-27 Red... Seagate 1tb x2 raid 0 M4 256gb SSD 2tb WD Green 
Optical DriveCoolingCoolingCooling
Samsung External SE-208 Phobya v.2 480 x 3 Phobya v1.2 480  Dual XSPC top w/ 2 x DDC -1 pump w/ DIYINHK Pum... 
CoolingOSMonitorKeyboard
2 x AC AQ5 lt w/ WB's 64bit windows 7 pro Samsung 2443BW+ Sidewinder X6 
PowerCaseMouseAudio
Enermax Platimax 1200w PSU Case Labs TH10 DeathAdder 3500dpi AKG Q701 
AudioAudioAudio
ASUS Xonar One Dac Audioengine A5 Beyerdynamic MMX 300 
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Reply
post #7 of 7
cf should be fine, i would go up to 1100 mhz then add the 10mhz core till ur stable.
Sig Rig
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CPUMotherboardGraphicsGraphics
Intel 5960x 4.5ghz  Asus X99 Extreme Evga 980Ti+EK Waterblock Evga 980Ti+EK Waterblock 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance 16GB 3000MHZ DDR4 Cas 16  2x Crucial 64gb Raid 0 Crucial M500 240GB 2TB WDC 7200RPM HDD 
Hard DriveHard DriveCoolingOS
Crucial M4 256GB WB 4TB External USB 3.0 HDD XSPC Raystorm CPU Water Block, 2x AX 480 Radiat... Windows 8.1 Pro 64Bit 
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Acer 28Inch Gsync 1440p Logitech G510s  Corsair AX1200 + Corsair RM 750 Case Labs STH10 
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Logitech G502 
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Sig Rig
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel 5960x 4.5ghz  Asus X99 Extreme Evga 980Ti+EK Waterblock Evga 980Ti+EK Waterblock 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance 16GB 3000MHZ DDR4 Cas 16  2x Crucial 64gb Raid 0 Crucial M500 240GB 2TB WDC 7200RPM HDD 
Hard DriveHard DriveCoolingOS
Crucial M4 256GB WB 4TB External USB 3.0 HDD XSPC Raystorm CPU Water Block, 2x AX 480 Radiat... Windows 8.1 Pro 64Bit 
MonitorKeyboardPowerCase
Acer 28Inch Gsync 1440p Logitech G510s  Corsair AX1200 + Corsair RM 750 Case Labs STH10 
Mouse
Logitech G502 
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