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6850K overclock starting point

Overclocking an 6850k for a friend of my, what’s a good starting point? Ive tried 4.5@1.3V which my 5930k is running at without luck 

CPU: i7 5930K OC'd 4.5Ghz

Motherboard: Asus X99 Sabertooth

RAM: 64G Corsair Dominator Platinum

GPU: EVGA GTX980Ti Hybrid

Case: NZXT H440 Razer Edition

Boot: Intel 750 480GB 

Storage: Micron M7 256GB+Seagate 3TB in acceleration mode

Backup: WD Blue 1T incremental for boot drive

PSU: Corsair AX860i

Display: Dell 2312HM

Cooling: H110i GTX

Keyboard: Topre Realforce

Mouse: Logitech G700s/G502s

OS:Win 10

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Just now, VenomZ_ said:

keep trying till u succeed 

I’m not sure if i’m aiming too high 

CPU: i7 5930K OC'd 4.5Ghz

Motherboard: Asus X99 Sabertooth

RAM: 64G Corsair Dominator Platinum

GPU: EVGA GTX980Ti Hybrid

Case: NZXT H440 Razer Edition

Boot: Intel 750 480GB 

Storage: Micron M7 256GB+Seagate 3TB in acceleration mode

Backup: WD Blue 1T incremental for boot drive

PSU: Corsair AX860i

Display: Dell 2312HM

Cooling: H110i GTX

Keyboard: Topre Realforce

Mouse: Logitech G700s/G502s

OS:Win 10

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The 6th-generation LGA-2011-3 CPUs can't overclock as high as 5th-generation variants -- or less common.

Start at 4.0 GHz first, and work your way up.

You're looking at 4.2 GHz ~ 4.4 GHz range...typically 100 ~ 200 MHz less compared to 5th-generation.

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3 minutes ago, TrigrH said:

Start with as much voltage as you and adequately cool at 4.3ghz, then slowly increase clock speed I guess.

Might want to rephrase the first part. 

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