BIOS Overclock

Casterina · 7 Oct 2012 at 15:13

I've Gigabyte Z77 D3H motherboard and i5 3570K CPU, I want to overclock the chip to 4.5GHz, but I don't know where to start, here's my BIOS settings on default,

Casterina · 7 Oct 2012 at 19:43

I've went to 4.2GHz using stock voltage and stressed test using Prime95, temps keep moving from around 50-60C

Idle temps at 4.2GHz,

BIOS settings,

I want to reach to 4.5GHz, what settings should I change?

Casterina · 7 Oct 2012 at 20:00

Doomedspeed said:
Give 4.3-4.4 a try. If prime fails up the vcore a little. (only a little, baby steps.)

It's currently on 1.210V, if 4.3/4.4 fails, how much do I up it?

Doomedspeed said:
What is your LLC? Level 6 seems the best for OCing to that level.

I'm not sure what is the current LLC, I'll find out

Casterina · 7 Oct 2012 at 20:51

Doomedspeed said:
Give 4.3-4.4 a try. If prime fails up the vcore a little. (only a little, baby steps.)

Should I set VCore to Auto or Manual?

Doomedspeed said:
What is your LLC? Level 6 seems the best for OCing to that level.

Can't seem to find LLC in BIOS

haz_pro said:
Same motherboard and cpu as me, similar overclock but you are getting much better temps. What cooler are you using, and what setting in the bios?

well done!

I'm using Alpenföhn Matterhorn CPU cooler with two Corsair fans like this one,

Settings in BIOS is default

The stressed test is done using VCore Auto

4.3GHz,

4.4GHz,

Casterina · 7 Oct 2012 at 23:26

Doomedspeed said:
Vcore on Auto will give you higher voltage. Manual is your best bet.

I'll set the VCore to Manual and leave it at 1.210V and try 4.3GHz, if it fails, what do I up it to?

Doomedspeed said:
I think 1.25-1.3v should be about right to get you to 4.5, Lower may suffice. silicon lottery.

I leave other settings as default?

Doomedspeed said:
Nice set-up by the way. Im getting a set of those fans for my H50.

Is it SP120?

Doomedspeed said:
LLC, look at your second screenshot (first post). "Vcore Load Line Calibration"

What do I set the VCore Load Line Calibration to?

Also for the RAM, I'm using Profile1 which gives 1600MHz, should I use that or disable it and enter 16 manually?

Casterina · 8 Oct 2012 at 07:31

Doomedspeed said:
If it fails raise the vcore by 0.010 until it passes. Like I say 1.25 should be okay.

I'll try that today

Doomedspeed said:
Set the LLC to level 6 for now.

What does Level 6 do?

Casterina · 8 Oct 2012 at 17:21

Doomedspeed said:
The LLC controls how the voltage changes under load situations. This is why the voltage shown on cpu-z may be different to what you set in the bios.

from what I have read and tested, level 6 is the most stable, ensure the voltaage doesn't exceed what you set, by much. Its a good place to start.

Should I use Turbo or Extreme for LLC?

Casterina · 8 Oct 2012 at 17:57

Doomedspeed said:
Sorry mate, don't know what you mean?

On the Gigabyte Z77 motherboard, it doesn't have Levels for LLC, it has Low, Medium, High, Turbo and Extreme

Casterina · 8 Oct 2012 at 20:18

Casterina said:
On the Gigabyte Z77 motherboard, it doesn't have Levels for LLC, it has Low, Medium, High, Turbo and Extreme

Sorry for the bump, can someone help me please

Casterina · 8 Oct 2012 at 21:37

Doomedspeed said:
Found this thread mate: http://forums.bit-tech.net/showthread.php?t=230363

A good 3/4's of the way down is this bit:

Overclocking,

Using a i5 3570K as mentioned, getting to 4Ghz was easy, all I had to do was set the CPU ratio to 40X, disable Turboboost (or leave the CPU ratio alone and set all four Turbo ratios to 45X if you want the power saving feature) and save+exit the BIOS.

Next up was 4.5Ghz, using these settings

CPU ratio of 45X
Turboboost disabled
LLC set to Turbo
Vcore set at 1.325v

4.6Ghz with:

CPU ratio of 46X
Turbo disabled
LLC set to Extreme
Vcore set at 1.35v

Hope this helps.

Thanks, I'll use Turbo for LLC, also the settings I've at the moment, is it power saving mode? As I don't want the CPU at full load when it's idle

Casterina · 8 Oct 2012 at 21:57

Is LLC necessary if I only aiming for 4.5GHz? Because someone told me that using LLC is needed if I'm going over 4.5GHz, and it's much better to find a nice stable offset voltage than using LLC to fill the gap

So I'm confused now

Casterina · 8 Oct 2012 at 22:58

I used 1.210V and Turbo LLC for 4.3GHz,

I tried 1.210V and Turbo LLC for 4.4GHz but Core 2 stopped working so I upped it to 1.215V and I get BSOD, so I tried 1.220V and Core 2 stopped working again, I'll give 1.225V a try on 4.4GHz tomorrow

Casterina · 9 Oct 2012 at 08:17

Doomedspeed said:
If I remember correct LLC minimises the vdrop/vdroop. Meaning that the voltage will stay close to what you set it in the bios. Without LLC you may have to set the vcore higher to achieve a stable oc. As under load the voltage will drop/droop.

i think im remembering that right.

Good 4.3 overclock. Getting to 4.4-4.5 may require bumping the vcore a fair bit.

Using LLC is better than using offset as LLC as sometimes the VDrop will drop but using offset sets the voltage to be that and it won't drop?

I will up the VCore 0.050V at a time and try 4.4-4.5GHz under 1.3VCore

Casterina · 9 Oct 2012 at 17:03

REDNINEAPB said:
Try a Vcore of 1.28v keep turbo, yours looks like a nice clocker so you might be able to drop a little most 3570k I have seen in various threads seem to take 1.24v-1.31v for 4.5GHz my 3770k stable with 1.28v at 4.5GHz on a Z77x-d3h. good luck.

Thanks, do you know if using LLC is better than using offset as LLC as sometimes the VDrop will drop but using offset sets the voltage to be that and it won't drop?