3570K OC advice required

snakefood

snakefood

snakefood

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Joined
18 Jun 2009
Posts
607
Location
Luton
Hi all,

I have a few questions regarding my cpu / mb, please see below, help / advise if you can:

PC:

i5 3570K
Z77X-D3H
H80i
2 x Corsair XMS3 8GB
Thermaltake Toughpower 750W PSU

Frequency:
In bios, I set the turbo multiplier of each core @ 42. When I login to windows, CPU-Z is telling me that i'm running @ 4.2 (it reads 42x100 correctly), I thought speed step would scale it down to much lower as I'm idle?

which setting should I look for in bios to ensure my cpu will clock down properly when idle?

Voltage:
In bios, I have my vcore set to auto, I've read Gigabyte's voltage handling is accurate enough to do this?

Now, when I open core temp, it reads my VID @ varying from 1.266 to 1.3010V, does this indicate that I need to run my cpu @ these voltages to hold a 4.2GHz clock?

Will discuss temps / volts once I get this step sorted :)
 
Set your Turbo ratio's back to auto, and set the CPU clock ratio to 42.

You should be OK to leave the voltage on auto for that overclock but keep an eye on it in CPU-Z while stress testing but the Gigabyte boards are pretty good on auto voltge, id imagine you will see 2.24V or there abouts.
 
I have the UD3H/ 3570k

What i did is this
Disable Turbo boost
Set multiplier to 42..

Long story short, CPU-Z multiplier does not change at all, real temp values fluctuate as they should, i left power saving settings on AUTO which they are by default

On auto it is around 1.24v at load @ 4.2ghz
 
Last edited:
Hi all, thanks for the pointers. I did as advised, set my multi in bios, setting the turbo feature to auto. However, what was preventing my cpu from stepping down was my power management in win 7 - I had set my profile to high power; this sets the min cpu performance to 100%. I changed this setting to a min of 5%...and my cpu mulitiplier now bounces up and down as it pleases :)

Load voltages were pretty much quoted spot on, think mine stablised under load at 1.236v. Interestingly when I clocked back down to a max of 4GHz, the max voltage remains the same.

Idle, my temps are around 30 on all cores, this is with the H80i set to "Balanced". If I switch to a high rpm profile and put my pc under load, @ 4GHz it almost hits 60.
 
Update: I tweaked my multi up, to see what the voltage would do. My cpu / board holds @ 1.23 until 4.4GHz, then it jumps up to 1.44, with obviously a significant increase in heat. I assume this means that the safe limit of my cpu is around 4.3?
 
Hi!
I have the same board & processor as you, and thought I might be able to help out a bit :) Mine makes a significant jump up to 1.33v if I leave the volts on Auto for 4.4GHz, but I've managed to get it stable at 1.26v by setting the voltage manually. I'd say it's worth a try manually fiddling with the voltage to keep it lower than the Auto setting, if you want to go much further that is.
 
I set my LLC to turbo, and tried 4.5GHz @ Vcore 1.27, windows doesn't like it. running P95, and various things start crashing on me.
 
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