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i7 860 + V6GT too hot while overclocking...sigh

post #1 of 5
Thread Starter 
I'm a bit frustrated. I've got a Coolermaster v6GT Cooler, very noisy at high speed, but supposed to be cooling very well. But my temps are pretty high. I read on the internet some rigs that had it at 1.3+ volt and a max of 75 degrees Celsius and 4+ghz. I'm at 3.66 ghz at 1.2375 volt (IMC 1.25), and I am at 76 degrees.

Tried applying thermal paste several times, different strategies, also the one from Arctic Silver guide, but my temps get very high when trying to overclock some more. when I hit 3.8 ghz (200mhz x 19) at 1.3+ volt, I am well over 80 degrees, and I don't think that should be any problem with my cooler.
I noticed some slight scratches at the heatsink, but mainly outside the cpu covering area.

When I pull the heatsink off, I can see the thermal paste left and right spread over the cpu and sink, but in the middle a vertical stripe with barely nothing on it (as to where the cores are placed). Could it be that my heatsink/cpu isn't flat enough, thus not making good contact? Or should I wait long enough for the AC5 to break-in? I now applied it evenly spread over the cpu.
It's frustrating, because I know my cpu can do 4 ghz, as I bought it from my friend, who achieved this speed before. And my cooler is supposed to be better than his. So.. please help..

Also, my third core (one of two threads) is significantly slower and cooler than the rest. 5 degrees cooler. Is this normal?
My System
(21 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3770K @ 4.8Ghz P8Z77-v Gainward GTX 780 Ti Phantom Asus GTX 780 Ti DCII OC 
RAMRAMHard DriveHard Drive
G.Skill RipJaw 2x4Gb 1600 Corsair Vengeance DDR3 2400mhz CL10 Samsung 840 Pro OCZ Vector 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 2 Western Digital Samsung Raid 5 (x3) DVD-writer 
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Noctua NH-D14 Windows 8.1 64-bit Windows 10 Pro 64-bit Dell Ultrasharp U2711b, Dell Ultrasharp U2410 
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DasKeyboard 4 Professional Corsair M1000 Coolermaster Centurion 690 II Logitech G600 
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My System
(21 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3770K @ 4.8Ghz P8Z77-v Gainward GTX 780 Ti Phantom Asus GTX 780 Ti DCII OC 
RAMRAMHard DriveHard Drive
G.Skill RipJaw 2x4Gb 1600 Corsair Vengeance DDR3 2400mhz CL10 Samsung 840 Pro OCZ Vector 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 2 Western Digital Samsung Raid 5 (x3) DVD-writer 
CoolingOSOSMonitor
Noctua NH-D14 Windows 8.1 64-bit Windows 10 Pro 64-bit Dell Ultrasharp U2711b, Dell Ultrasharp U2410 
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DasKeyboard 4 Professional Corsair M1000 Coolermaster Centurion 690 II Logitech G600 
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post #2 of 5
i would say try different heatsink, and i think its noraml ur third core coller than rest other core, cuz my 3rd core temp lower than other core also
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Hard DriveCoolingOSMonitor
Intel 520 Series 180GB SSD+WD Caviar Black 1TB ... RASA KIT EX360 WINDOWS 7 64 BIT Acer GD235HZ 120HZ 
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CORSAIR AX1200 COOLERMASTER HAF X-942 
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I7-3930K@4.6GHZ ASUS RAMPAGE IV EXTREME EVGA GTX680 SLI Corsair Vengence DDR3 16GB 1600@8-8-8-24 
Hard DriveCoolingOSMonitor
Intel 520 Series 180GB SSD+WD Caviar Black 1TB ... RASA KIT EX360 WINDOWS 7 64 BIT Acer GD235HZ 120HZ 
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CORSAIR AX1200 COOLERMASTER HAF X-942 
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post #3 of 5
V6GT is just PRO on looks in performance it won't even trump a TRUE120..or even a Megahalem..

either way try reseating your V6 and try reapplying TIM..there are ways on which you can properly apply TIM so that it can cover the whole surface and effectively dissipate heat..
Anti-Wuttz!!
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Anti-Wuttz!!
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post #4 of 5
Maybe disable hyper threading if all else fails it should drop your temperature some. slldo have you tried lowering your voltage?
Wayne-The-Brain
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Wayne-The-Brain
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Hard DriveOptical DriveCoolingOS
OCZ 30GB SSD os /1tb 2x WD black Raid 0 Blu Ray Rasa 240 RX gentle typhoon push pull Windows 7 64bit 
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post #5 of 5
Thread Starter 
tried reapplying TIM, several times, and also turning off HT. Didn't get me very much. I guess the sink makes just bad contact. But is there any way to make it flatter? I mean not to polish it, but to flatten the surface (not by hand of course, that won't work. Unless you have a very flat sanding machine.
Anyone? I can't really try another cooler, then I need to buy one. Which one is the best out there, and not so loud? And will it fit, because of memoryslots?
And lower voltage, doesn't work when trying to reach 4 ghz. I need at least 1,35v, I'm now at 1.2375 at 3,66 ghz... But at max temp (76/77 C)
Edited by kakakakaka - 2/22/11 at 4:03am
My System
(21 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3770K @ 4.8Ghz P8Z77-v Gainward GTX 780 Ti Phantom Asus GTX 780 Ti DCII OC 
RAMRAMHard DriveHard Drive
G.Skill RipJaw 2x4Gb 1600 Corsair Vengeance DDR3 2400mhz CL10 Samsung 840 Pro OCZ Vector 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 2 Western Digital Samsung Raid 5 (x3) DVD-writer 
CoolingOSOSMonitor
Noctua NH-D14 Windows 8.1 64-bit Windows 10 Pro 64-bit Dell Ultrasharp U2711b, Dell Ultrasharp U2410 
KeyboardPowerCaseMouse
DasKeyboard 4 Professional Corsair M1000 Coolermaster Centurion 690 II Logitech G600 
  hide details  
Reply
My System
(21 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3770K @ 4.8Ghz P8Z77-v Gainward GTX 780 Ti Phantom Asus GTX 780 Ti DCII OC 
RAMRAMHard DriveHard Drive
G.Skill RipJaw 2x4Gb 1600 Corsair Vengeance DDR3 2400mhz CL10 Samsung 840 Pro OCZ Vector 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 2 Western Digital Samsung Raid 5 (x3) DVD-writer 
CoolingOSOSMonitor
Noctua NH-D14 Windows 8.1 64-bit Windows 10 Pro 64-bit Dell Ultrasharp U2711b, Dell Ultrasharp U2410 
KeyboardPowerCaseMouse
DasKeyboard 4 Professional Corsair M1000 Coolermaster Centurion 690 II Logitech G600 
  hide details  
Reply
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