4930k - First Time Overclocker

[Mixmaster5]

Hi there,

 

I decided to overclock my 4930k (regular X79 Asus motherboard) which I have for three years now. I used this video below JJ as a guide. 

 

I use my system for video editing and don't require full performance all the time which I decided to go for the more power efficient offset mode for VCORE voltage and set the CPU to 4.3 GHz. On CPU-Z i get voltages of up to 1.49 when the system is being stressed. Isn't that voltage a bit too high?

 

My settings: 

-AI Overclock Tuner: XMP (Profile 1) 

-CPU Core Ratio: 4.3 (all cores synched) 

-DRAM: 2133

-CPU Load-line Calibration: High

-CPU Curren Capability: 130%

-VCCSA Current Capability: 120%

-VCCSA Load-line Calibration: Regular

-CPU Power Phase Control: Optimized

-DRAM-AB Current Cap.: 120%

-DRAM Power Phase Control: Optimized

-CPU VCORE Voltage: Offset Mode

-CPU VCORE Offset Voltage: 0.200 

-CPU VCCSA Voltage: Offset Mode

 

Any tips, changes?

 

Thanks for the help!

 

 

 

 

 

 

[Crunchy Dragon]

If it's a stable overclock, I wouldn't change anything.

 

On my first overclock, I actually didn't change any voltage settings since I was too scared of breaking something(lol what a noob) and got to a stable 4.4Ghz.(although this was on an A6-5400K lol)

[oskarha]

1.49v is rather high for ivy bridge-e.

What voltage readings do you get in the UEFI?

I have the P9X79 Deluxe with a i7 4930k with the voltage set to 1.35v in the UEFI and CPU-Z reads 1.368v under load.

[Mixmaster5]

It's just at this voltage when it's under 100% stress. At Idle it is around 1-1.25. 

 

I now set the VCORE to 4.4 GHZ...voltage goes around 1.5.1 now. Seems like with offset the voltage goes quite high when under stress. Temps are around 70°...is voltage above 1.5 something to worry about?

 

Cheers

[oskarha]

Just now, Mixmaster5 said:

It's just at this voltage when it's under 100% stress. At Idle it is around 1-1.25. 

 

I now set the VCORE to 4.4 GHZ...voltage goes around 1.5 now. Seems like with offset the voltage goes quite high when under stress. 

 

Cheers

How are temps? I wouldn't be comfortable running my 4930k at such a high voltage.

[Mixmaster5]

Around 70 to 75 degrees. 

 

So what is the suggestion? Not setting the CPU to offset rather a fixed voltage? 

 

Cheers

[oskarha]

Just now, Mixmaster5 said:

Around 70 to 75 degrees. 

 

So what is the suggestion? Not setting the CPU to offset rather a fixed voltage? 

 

Cheers

I keep mine at a fixed voltage

70c to 75c doesnt seem to bad (mine sits at around 65c under load at 1.35 with a NH-D14), might be that the CPU-Z reading is off.

[Mixmaster5]

But doesn't that use way more power? Or just little? 

[oskarha]

1 minute ago, Mixmaster5 said:

But doesn't that use way more power? Or just little? 

Under idle yes, but you can probably get by with a lower voltage under load, which will use less power and generate less heat.

[Mixmaster5]

Is there a way to set a maximu voltage for Offset mode?

[oskarha]

1 minute ago, Mixmaster5 said:

Is there a way to set a maximu voltage for Offset mode?

Not that i am aware of, i would recommend setting a fixed voltage and calling it a day  

[Mixmaster5]

How much more watts are we looking at in the end of the day?

[oskarha]

1 minute ago, Mixmaster5 said:

How much more watts are we looking at in the end of the day?

I dont know, however running your CPU at 1.5v might shorten its lifespan in the long run.

[Mixmaster5]

i found the solution: 

 

Lowering the CPU VCORE Offset Voltage decreases the max voltage! I have it set now to 0.100 instead of 0.200 and I get a stable system with a max of 1.4 V @4.4 Ghz...trying to decrease it further now. 

 

I really wanna safe power...so offset all the way  

[Mixmaster5]

0.08 was stable with 4.4 but didn't boot with 4.5

[Mixmaster5]

Ended up with VCORE Offset Voltage of 0.065: very low voltage and power consumption at idle, around 1.36 to 1.38 V at load. Temps around 50 under load. Seems pretty good to me.