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Help with overclocked i5 6600k voltage

post #1 of 6
Thread Starter 
I've overclocked to 4.3GHz at 1.175V fixed. I haven't tried going to a lower voltage or overclocking further as I'm new to overclocking and currently don't have the time to mess around with it.

The problem I'm having is that, according to CPU-Z, the voltage is 1.168 at idle and 1.184 under load, never 1.175. I have no idea why this is happening or whether it's a bad thing. I tried setting the voltage to adaptive because it makes sense to not give more voltage than required (let me know if this is bad) but it goes to 1.2V under load when the max is set to 1.175V with no offset.

If anyone can help me with this I would very much appreciate it.


Specs

CPU: i5 6600k
Motherboard: Asus Z170 Pro Gaming
RAM: Corsair Vengeance 2400MHz DDR4 2x8GB
GPU: NVIDIA GTX 970
Cooler: Cryorig H7
post #2 of 6
This is normal, the voltage reported by software is always off by a few mV. In order to measure true voltage you would need to hookup a voltmeter to your motherboard.
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RPI Compy
(14 items)
 
Sister's rig
(11 items)
 
Family HTPC
(10 items)
 
CPUMotherboardGraphicsRAM
5820k MSI X99S MPOWER GTX 980 Ti 8x4gb 3000 MHz Crucial DDR4 
Hard DriveCoolingOSMonitor
Samsung 950 Pro Custom WC loop 480mm & 560mm Windows 10 ROG SWIFT 
KeyboardPowerCaseMouse
CM Quickfire TK Greens Corsair RM1000w Custom 3d-printed case Steelseries Rival 
Mouse PadAudio
CSGO Steelseries Creative Aurvana Live! 2 
CPUMotherboardGraphicsRAM
Amd FX 8320 Asus sabertooth 990FX Nvidia GTX 760 4GB g.skill ares 12GB 
Hard DriveOptical DriveCoolingOS
Samsung 850 EVO 250GB HP thingy Phanteks TC12DX Windows 7 
PowerCaseMouse
Raidmax 530w White FD R4 Logitech G400 
CPUMotherboardGraphicsRAM
AMD A10 5800k Asrock pro-4 m His 6770 1GB G.skill 2133 8GB 
Hard DriveOptical DriveCoolingOS
Samsung 840 ssd 128 GB Lg blu-ray combo drive Cooler Master Hyper 212 EVO Windows 7 
PowerCase
Raidmax 530w Silverstone Temjin 
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post #3 of 6
Thread Starter 
Yeah I know about that, but I thought that even if it wasn't exact it would still stay fixed at the same voltage all the time.
post #4 of 6
Thread Starter 
What about the adaptive voltage? I was pretty sure that the value set was the absolute maximum (to a certain degree of accuracy) so I guess it could still be that, but I'm not convinced cos 1.2 is quite a way off 1.175 for just being inaccurate. I've seen some people say that it's supposed to go above, but that kinda defeats the point of it.
post #5 of 6
You need to use LLC (Load Line Calubration) to combat over voltage or Vdroop (voltage going under desired voltage) this is for CPU voltage by the way.

The lower the LLC the lower the offset will be. The higher the LLC the higher the offset is. You will need to test LLC to find the best level.
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post #6 of 6
Thread Starter 
Ah ok, thanks. I'll look into it.
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