************ Official 39XX Overclocking Thread ************

[Yaayuh!]

Here's what i have so far. But like i said, i will not be stressing this too long as the 3930K gets to 86c in IBT on maximum.... Looking to shave 5c off somehow.

8 Pack: I have a Samsung Green related question that i hope you can help me with over in the Samsung Green thread. Much appreciated.

 

[Yaayuh!]

Ok, gone back to original settings for now. Will review the situation and go back and try harder. It's just far too hot for 24/7. I see between 86-88c in IBT on maximum. If i had water on this i could push it nicely but as it stands (even with the Phanteks heatsink) it's too hot for my liking.

 

[Yaayuh!]

Screwed it pushing the IMC too much. Now requires a heap more voltage to overclock crud...... Degraded already.

Becareful with VTT on the C2 3930K, can't remember my batch number but will post when I find it (write it somewhere).

 

[edgedemon]

Guys - what settings do I need to look at to control/lower vcore voltage. I can boot and run stability tests at 4.5 - 4.9Ghz but even at 4.5, my vcore is 1.42 and at 4.8 it is 1.5
So Im looking for the settings that will allow me to manually lower/limit the vcore so I can then see what speed I can get out of this?
3930K on a R4E on air (NH-D14)

I have 2133Mhz RAM but have lowered that to 1600 for stability while I try and get a decent oc on the cpu

thx

 

[Yaayuh!]

Guys - what settings do I need to look at to control/lower vcore voltage. I can boot and run stability tests at 4.5 - 4.9Ghz but even at 4.5, my vcore is 1.42 and at 4.8 it is 1.5
So Im looking for the settings that will allow me to manually lower/limit the vcore so I can then see what speed I can get out of this?
3930K on a R4E on air (NH-D14)

I have 2133Mhz RAM but have lowered that to 1600 for stability while I try and get a decent oc on the cpu

thx

It differs quite a bit from system to system.

For me, increasing PLL from 1.8 to 1.85v helped a lot, though sometimes lowering this can help also...It differs.
Increasing VTT to 1.12v and VCCSA to 1.15-1.175v also helped.

Changing the VCORE LLC to High will also allow you to lower the VCORE because it will droop less at full load.

Remember different chips require different amounts of VCORE. For instance, mine require 1.375v for 4.5GHz and 1.4v+ for 4.6GHz where as other are able to achieve 4.7GHz+ at 1.35~1.38v.

Do you know the batch code of your chip?

 

[8 Pack]

Guys - what settings do I need to look at to control/lower vcore voltage. I can boot and run stability tests at 4.5 - 4.9Ghz but even at 4.5, my vcore is 1.42 and at 4.8 it is 1.5
So Im looking for the settings that will allow me to manually lower/limit the vcore so I can then see what speed I can get out of this?
3930K on a R4E on air (NH-D14)

I have 2133Mhz RAM but have lowered that to 1600 for stability while I try and get a decent oc on the cpu

thx

What Board??? Which RAM etc we need to know more to help.

 

[Yaayuh!]

Guys - what settings do I need to look at to control/lower vcore voltage. I can boot and run stability tests at 4.5 - 4.9Ghz but even at 4.5, my vcore is 1.42 and at 4.8 it is 1.5
So Im looking for the settings that will allow me to manually lower/limit the vcore so I can then see what speed I can get out of this?
3930K on a R4E on air (NH-D14)

I have 2133Mhz RAM but have lowered that to 1600 for stability while I try and get a decent oc on the cpu

thx

What Board??? Which RAM etc we need to know more to help.

 

[edgedemon]

It is a C2 stepping, but without taking off the cooler I couldn't tell you more.
RAM is G.Skill ripjawZ 2133Mhz, I have 2 x 16Gb kits, so I understand that will limit my oc'ing capability

<Changing the VCORE LLC to High will also allow you to lower the VCORE because it will droop less at full load.>

Is vcore dynamic or is there a setting I can lock to set it to a maximum voltage?

Will have a play with the various settings and see what I can get

 

[Yaayuh!]

It is a C2 stepping, but without taking off the cooler I couldn't tell you more.
RAM is G.Skill ripjawZ 2133Mhz, I have 2 x 16Gb kits, so I understand that will limit my oc'ing capability

<Changing the VCORE LLC to High will also allow you to lower the VCORE because it will droop less at full load.>

Is vcore dynamic or is there a setting I can lock to set it to a maximum voltage?

Will have a play with the various settings and see what I can get

By default it will be (or at least is on Sabertooth, think it is for all) OFFSET which will change the voltage on load/frequency.
You can lock it, which tbh seems much simpler and easier.

 

[8 Pack]

LOL!! your right, too many protein shakes!!!

 

[8 Pack]

Now to try and help!!

Right firstly are you actively cooling the VRM section of the board just above the CPU at those Vcore levels they will be getting very hot and may even be throttling the CPU back. Dont add loads of LLC this is ultimately a bad idea. Intel design CPU's so the Vcore droops under load they do this for a reason!! Medium LLC is all you should need. I see LLC being the answer far too often on many forums it should not be branded as such without a knowledge of what is actually going on. I bench a 3930K at 5.675mhz with only high LLC and sub zero cooling, my daily clock remains at Medium.

You need to check firstly using monitoring software if your not throttling already, you may well be.

What I suggest you do to drop your Vcore needed is Push BLK high on the 1.25 strap with the 2000mhz memory divider. So 129 to 131 BLK. At this tune your PLL which all helps you lower Vcore as there is less modulation in the Phase Lock Loop of the CPU and hence less error margin. You will probably need less PLL for this.

Set your memory up with as low a VTT and VCCSA as possible as these add needles heat to the socket area. Go 9-11-10-28 2T and Mode 1 twaek with a 20uf clock gen filter.

BLK scews for CPU and PCI ex -2 and -20 respectively.