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Asus Rampage IV Extreme + (3 x 6970 Crossfire) Overclocking GPUs "unstable"

post #1 of 7
Thread Starter 
Hi

I have a Intel 3930k with Asus Rampage IV Extreme since 2 months. I have been playing game at 1080p with my Triple 6970 Crossfire at stock clock because I didnt really need to overclock my GPUs to max out every games.

I recently purchased three (3) new monitors. They are 1440p IPS monitors and I run them in eyefinity. Since then my games are MUCH more laggy so I am overclocking my 6970.

It's a fairly high overclock. I'm able to play around 15 minutes of game play then my computer start to freeze, unfreeze, driver crashing, the PC doesn't crash but the game eventually crashes everytime.

I can play the game fine at stock GPU clocks.

I know its a graphic card related problem, but I don't know whats causing it.

3930k OC to 4.8Ghz (1.39v)

Is there a Voltage on the Rampage IV extreme that I have to bump because I'm pushing more GPU power. VCCSA? VTT?

I'm using the newest Version of Afterburner


Or is my Power Supply just not strong enough for a triple overclock 6970 setup? In game my CPU never reach 20% load so the CPU is not drawing a lot of Watts.
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CPUMotherboardGraphicsRAM
Intel i7 4930k @ 4.6Ghz Asus Rampage IV Extreme (Koolance Full WB) 2 x GTX 1080ti FE in SLI (EK WATERBLOCK) Corsair Dominator GT 2133 MHz (16GB) 
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3 TB Seagate OCZ Vertex 4 256GB Crucial M4 128GB ADATA SX900 128GB 
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Asus ROG Swift PG348Q (3440x1440 @100hz) CrossOver 27Q Led-P Logitech G15 EVGA SuperNova 1600T2 (Titanium) 
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Intel i7 4930k @ 4.6Ghz Asus Rampage IV Extreme (Koolance Full WB) 2 x GTX 1080ti FE in SLI (EK WATERBLOCK) Corsair Dominator GT 2133 MHz (16GB) 
Hard DriveHard DriveHard DriveHard Drive
3 TB Seagate OCZ Vertex 4 256GB Crucial M4 128GB ADATA SX900 128GB 
CoolingCoolingCoolingCooling
RIVE Koolance Waterblock (VRM and PCH) Feser X-Changer 360 Feser X-Changer 240 Feser X-Changer 480 
CoolingCoolingCoolingOS
WaterCool MoRA3 Pro with Gentle Typhoon 3 x MCP 655 pumps (With EK top...all serial) 2 x EK FC 1080ti Blocks Windows 7 Ultimate x64 
MonitorMonitorKeyboardPower
Asus ROG Swift PG348Q (3440x1440 @100hz) CrossOver 27Q Led-P Logitech G15 EVGA SuperNova 1600T2 (Titanium) 
CaseMouseMouse PadAudio
Corsair Obsidian Heavily Modded Logitech G700 RocketFish Speed/Control M-audio AV-40 (Logitech G-35) 
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post #2 of 7
How much of an o/c are you doing on your GPU's? Its possible that one of them can't handle the o/c - how much stability testing have you done? There is also usually a 4pin molex connector on your motherboard that will provide stable power to the GPU's when the PCIE lanes need a bit more power, so make sure you have that plugged in as well.
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post #3 of 7
Thread Starter 
I have 3 Cards

1st -sapphire
2nd -sapphire
3rd -power Color

The 1St and 3rd were actually stable at higher clocks, then I added another Card (the 2nd Slot)

And since then, even if I don't overclock the middle card and a lighter OC on the other two, its unstablle.

When I only had 2 Cards (1st and 3rd) the could clock at 1050Mhz Core and 1475 Mhz Memory ( I did a 24 hours furmark run at these clock). I cannot oc them that high with the middle one and it still crashes.

Thats why I'm not sure if there is a motherboard voltage to give better voltage to the PCIE Lane

PS: temps is not an issue, max temp on GPUs is 50'C, even with the overclock
Edited by KaRLiToS - 4/27/12 at 7:35am
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(24 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 4930k @ 4.6Ghz Asus Rampage IV Extreme (Koolance Full WB) 2 x GTX 1080ti FE in SLI (EK WATERBLOCK) Corsair Dominator GT 2133 MHz (16GB) 
Hard DriveHard DriveHard DriveHard Drive
3 TB Seagate OCZ Vertex 4 256GB Crucial M4 128GB ADATA SX900 128GB 
CoolingCoolingCoolingCooling
RIVE Koolance Waterblock (VRM and PCH) Feser X-Changer 360 Feser X-Changer 240 Feser X-Changer 480 
CoolingCoolingCoolingOS
WaterCool MoRA3 Pro with Gentle Typhoon 3 x MCP 655 pumps (With EK top...all serial) 2 x EK FC 1080ti Blocks Windows 7 Ultimate x64 
MonitorMonitorKeyboardPower
Asus ROG Swift PG348Q (3440x1440 @100hz) CrossOver 27Q Led-P Logitech G15 EVGA SuperNova 1600T2 (Titanium) 
CaseMouseMouse PadAudio
Corsair Obsidian Heavily Modded Logitech G700 RocketFish Speed/Control M-audio AV-40 (Logitech G-35) 
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Quad Damage
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CPUMotherboardGraphicsRAM
Intel i7 4930k @ 4.6Ghz Asus Rampage IV Extreme (Koolance Full WB) 2 x GTX 1080ti FE in SLI (EK WATERBLOCK) Corsair Dominator GT 2133 MHz (16GB) 
Hard DriveHard DriveHard DriveHard Drive
3 TB Seagate OCZ Vertex 4 256GB Crucial M4 128GB ADATA SX900 128GB 
CoolingCoolingCoolingCooling
RIVE Koolance Waterblock (VRM and PCH) Feser X-Changer 360 Feser X-Changer 240 Feser X-Changer 480 
CoolingCoolingCoolingOS
WaterCool MoRA3 Pro with Gentle Typhoon 3 x MCP 655 pumps (With EK top...all serial) 2 x EK FC 1080ti Blocks Windows 7 Ultimate x64 
MonitorMonitorKeyboardPower
Asus ROG Swift PG348Q (3440x1440 @100hz) CrossOver 27Q Led-P Logitech G15 EVGA SuperNova 1600T2 (Titanium) 
CaseMouseMouse PadAudio
Corsair Obsidian Heavily Modded Logitech G700 RocketFish Speed/Control M-audio AV-40 (Logitech G-35) 
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post #4 of 7
When using xfire and SLI configs all cards run at the same clocks from what I understand. You will need to find a stable clock that works on all three cards. This might mean pushing the voltages on the cards a little higher than before. Your power supply is more than enough to handle that. You did not mention if you plugged in the extra molex connector to the board to get more power to the PCI lanes. If you have not done that then go ahead and try. This also could be a AMD driver issue, I have not heard great stories about 3x crossfire set ups. Also, I know for a fact the latest drivers are crap for the 6xxx series, try to roll back drivers.
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Windows 10 Samsung Curved S34E790C Corsair Strafe RGB EVGA SuperNOVA P2 650w 
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post #5 of 7
Thread Starter 
I'll try to back down,

but its not true when you say they have to run at the same clock. Its far from being true. I can run my three cards at different clock and I did the same with my previous Triple Crossfire (5850, 5850, 5870).

Also, my EZ_plug is connected for extra power, its not a molex, its a 6 Pin PCIE Power cable.
Quad Damage
(24 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 4930k @ 4.6Ghz Asus Rampage IV Extreme (Koolance Full WB) 2 x GTX 1080ti FE in SLI (EK WATERBLOCK) Corsair Dominator GT 2133 MHz (16GB) 
Hard DriveHard DriveHard DriveHard Drive
3 TB Seagate OCZ Vertex 4 256GB Crucial M4 128GB ADATA SX900 128GB 
CoolingCoolingCoolingCooling
RIVE Koolance Waterblock (VRM and PCH) Feser X-Changer 360 Feser X-Changer 240 Feser X-Changer 480 
CoolingCoolingCoolingOS
WaterCool MoRA3 Pro with Gentle Typhoon 3 x MCP 655 pumps (With EK top...all serial) 2 x EK FC 1080ti Blocks Windows 7 Ultimate x64 
MonitorMonitorKeyboardPower
Asus ROG Swift PG348Q (3440x1440 @100hz) CrossOver 27Q Led-P Logitech G15 EVGA SuperNova 1600T2 (Titanium) 
CaseMouseMouse PadAudio
Corsair Obsidian Heavily Modded Logitech G700 RocketFish Speed/Control M-audio AV-40 (Logitech G-35) 
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CPUMotherboardGraphicsRAM
Intel i7 4930k @ 4.6Ghz Asus Rampage IV Extreme (Koolance Full WB) 2 x GTX 1080ti FE in SLI (EK WATERBLOCK) Corsair Dominator GT 2133 MHz (16GB) 
Hard DriveHard DriveHard DriveHard Drive
3 TB Seagate OCZ Vertex 4 256GB Crucial M4 128GB ADATA SX900 128GB 
CoolingCoolingCoolingCooling
RIVE Koolance Waterblock (VRM and PCH) Feser X-Changer 360 Feser X-Changer 240 Feser X-Changer 480 
CoolingCoolingCoolingOS
WaterCool MoRA3 Pro with Gentle Typhoon 3 x MCP 655 pumps (With EK top...all serial) 2 x EK FC 1080ti Blocks Windows 7 Ultimate x64 
MonitorMonitorKeyboardPower
Asus ROG Swift PG348Q (3440x1440 @100hz) CrossOver 27Q Led-P Logitech G15 EVGA SuperNova 1600T2 (Titanium) 
CaseMouseMouse PadAudio
Corsair Obsidian Heavily Modded Logitech G700 RocketFish Speed/Control M-audio AV-40 (Logitech G-35) 
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post #6 of 7
Quote:
Originally Posted by KaRLiToS View Post

I'll try to back down,
but its not true when you say they have to run at the same clock. Its far from being true. I can run my three cards at different clock and I did the same with my previous Triple Crossfire (5850, 5850, 5870).
Also, my EZ_plug is connected for extra power, its not a molex, its a 6 Pin PCIE Power cable.

Hmm I have always heard that it does that..... Do you know if SLI does the same?

Try a driver roll back.

Uh, scratch that... go to the newegg PSU calculator and enter in your specs. I just entered them in for you and it says youd need a 1300watt.... With a full water cooling loop you are prolly over your psu rated watts.
Edited by i7Stealth1366 - 4/27/12 at 7:59am
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Hard DriveCoolingCoolingCooling
Samsung 850 Pro Noctua D15s Cooler Master Silencio PWM 120MM 2400RPM Cooler Master Silencio PWM 120MM 1400RPM 
OSMonitorKeyboardPower
Windows 10 Samsung Curved S34E790C Corsair Strafe RGB EVGA SuperNOVA P2 650w 
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post #7 of 7
Thread Starter 
The PSU calculator has a lot of flaws, Tator_Tot told me it was fine, he is the best source on the net.

I tried the newest 12.4 Driver and still the same. I think my middle card sucks and its causing the freezes.

i'm still looking for a x79 board voltage to adjust for multiple GPUs setup.
Quad Damage
(24 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 4930k @ 4.6Ghz Asus Rampage IV Extreme (Koolance Full WB) 2 x GTX 1080ti FE in SLI (EK WATERBLOCK) Corsair Dominator GT 2133 MHz (16GB) 
Hard DriveHard DriveHard DriveHard Drive
3 TB Seagate OCZ Vertex 4 256GB Crucial M4 128GB ADATA SX900 128GB 
CoolingCoolingCoolingCooling
RIVE Koolance Waterblock (VRM and PCH) Feser X-Changer 360 Feser X-Changer 240 Feser X-Changer 480 
CoolingCoolingCoolingOS
WaterCool MoRA3 Pro with Gentle Typhoon 3 x MCP 655 pumps (With EK top...all serial) 2 x EK FC 1080ti Blocks Windows 7 Ultimate x64 
MonitorMonitorKeyboardPower
Asus ROG Swift PG348Q (3440x1440 @100hz) CrossOver 27Q Led-P Logitech G15 EVGA SuperNova 1600T2 (Titanium) 
CaseMouseMouse PadAudio
Corsair Obsidian Heavily Modded Logitech G700 RocketFish Speed/Control M-audio AV-40 (Logitech G-35) 
  hide details  
Reply
Quad Damage
(24 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 4930k @ 4.6Ghz Asus Rampage IV Extreme (Koolance Full WB) 2 x GTX 1080ti FE in SLI (EK WATERBLOCK) Corsair Dominator GT 2133 MHz (16GB) 
Hard DriveHard DriveHard DriveHard Drive
3 TB Seagate OCZ Vertex 4 256GB Crucial M4 128GB ADATA SX900 128GB 
CoolingCoolingCoolingCooling
RIVE Koolance Waterblock (VRM and PCH) Feser X-Changer 360 Feser X-Changer 240 Feser X-Changer 480 
CoolingCoolingCoolingOS
WaterCool MoRA3 Pro with Gentle Typhoon 3 x MCP 655 pumps (With EK top...all serial) 2 x EK FC 1080ti Blocks Windows 7 Ultimate x64 
MonitorMonitorKeyboardPower
Asus ROG Swift PG348Q (3440x1440 @100hz) CrossOver 27Q Led-P Logitech G15 EVGA SuperNova 1600T2 (Titanium) 
CaseMouseMouse PadAudio
Corsair Obsidian Heavily Modded Logitech G700 RocketFish Speed/Control M-audio AV-40 (Logitech G-35) 
  hide details  
Reply
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