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3570K Voltage question

post #1 of 15
Thread Starter 
So, my cooler is not so great and while I am waiting to get another one I decided I want to try to find the highest OC on the lowest voltage.

With all C-States turned off, with multiplier set at Auto, at 3.4 with no boost system runs at 1.15v and has temps that are acceptable.

So I want to see how much hertz I can push out of that voltage.

I have LLC at Level 5, Voltage set to Fixed at 1.15 and multiplier at auto, everything is fine boots into windows and shows the 1.15vid in Coretemp and is stable to on 15min stress runs.

But......


as soon as I set the multiplier to manual, and even if I leave it at 3.4, core temp now reports a vid of 1.210 with load temps going a little too far?

What am I missing, how do I keep that voltage down?
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post #2 of 15
VID is not the Vcore.

What are your temps 3.4 Ghz?

You set your load line calibration at Level 5, thats why the VID is higher. You should not use LLC to high when using such a low multiplier. Check the graph below, having your LLC to level 5 will prevent the Voltage drop but instead, it will raise the voltage too high.

More Info here.


Edited by KaRLiToS - 4/1/13 at 8:32pm
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post #3 of 15
Thread Starter 
Quote:
Originally Posted by KaRLiToS View Post

VID is not the Vcore.

What are your temps 3.4 Ghz?

You set your load line calibration at Level 5, thats why the VID is higher. You should not use LLC to high when using such a low multiplier. Check the graph below, having your LLC to level 5 will prevent the Voltage drop but instead, it will raise the voltage too high.

More Info here.


oh, I thought it was the other way around (silly me)

so VID is the default CPU voltage right?

I set vcore manually to 1.55 in UEFI and in CPUz it is reported as 1.136, and Prime immediately fails, so I am going to push it a little higher.

Temps are pretty high with idles in low 40*s, and High FFT Prime runs can go up to 70*
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post #4 of 15
I suggest using C-States

-Enhanced intel speedstep technology (EIST) : Enabled
-C1E: Enabled
-C3/C6/C7: Auto

I also suggest using offset voltage

CPU Core Voltage Offset Mode Overclocking





VID (Voltage Identification) Explained
Quote:
The VID of your CPU is the default vcore your CPU needs in order to run at stock to run Intel’s standards for stability on any non-faulty motherboard. Some people have found that they can undervolt below their VID to still run at Stock speeds without failing stability tests. However, I highly discourage this on practice on low-end motherboards for reasons I will explain soon.

In my overclocking experience, I have found that using a medium to high-end motherboard has allowed me to overclock using the VID vcore for several hundred mhz’s. This is because these motherboards generally do not have bad vdroop or vdrop (defined below). The CPU’s VID is designed to be what is required so that when a low-end motherboard shows its severe vdroop/vdrop that the CPU will still run 100% stable.
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post #5 of 15
If your trying manual put llc to 75% and set vcore to 1.15 and change multiplier to 42 most are stable at stock voltage at 4200mhz. for now keep power saving disabled like you have cause overclocking at such a low voltage
post #6 of 15
Thread Starter 
Quote:
Originally Posted by enigma7820 View Post

If your trying manual put llc to 75% and set vcore to 1.15 and change multiplier to 42 most are stable at stock voltage at 4200mhz. for now keep power saving disabled like you have cause overclocking at such a low voltage

Yeah after playing around a little i found that the best I could do is 4.2 while still staying cool.

Using offset for me is will not work. Though maybe I am doing it wrong. In the ASrock guide it stated that I should not have a negative offset but with +.005 I am way to hot.

Though did a 3min quick high FFT burn at 4.3 with no errors, but once the temps hit 100* I stopped it. Actually sitting at 4.3 right now as I type but not going to leave it here with the crap cooler I have.

I managed to get a 10min stable run @4.2 at 1.16(bios) 1.15(cpuz), temps there peak at 70* which for now is alright till I get a new cooler. Hopefully it will be stable.

this whole thread started cause I am an idiot, I was using Coretemp to monitor, and at stock the VID was at 1.15, but as soon as I changed the multiplier to manual the VID jumped to 1.2-1.25 in oscillation, or most likely on load demand but now I know that VID is not Vcore, and I feel stupid.

oh well, back to tweaking.


in case anyone was wondering, http://www.newegg.com/Product/Product.aspx?Item=N82E16835200056 thats the crap cooler i am using. Will be upgrading very very soon.
Edited by TheProfiteer - 4/1/13 at 11:06pm
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post #7 of 15
Something is wrong man... You should not need 1.6 on your chip to hit 4.2......... Becareful because you are running suicide run voltages, not sure if that is what you are doing though frown.gif
  
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post #8 of 15
You should never be at 1.6v for 4.2 GHz.

The VID will always oscillate according to the work load.

Please don't call yourself an idiot. You are not.
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3 TB Seagate OCZ Vertex 4 256GB Crucial M4 128GB ADATA SX900 128GB 
CoolingCoolingCoolingCooling
RIVE Koolance Waterblock (VRM and PCH) Feser X-Changer 360 Feser X-Changer 240 Feser X-Changer 480 
CoolingCoolingCoolingOS
WaterCool MoRA3 Pro with Gentle Typhoon 3 x MCP 655 pumps (With EK top...all serial) 2 x EK FC 1080ti Blocks Windows 7 Ultimate x64 
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Asus ROG Swift PG348Q (3440x1440 @100hz) CrossOver 27Q Led-P Logitech G15 EVGA SuperNova 1600T2 (Titanium) 
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post #9 of 15
Thread Starter 
Quote:
Originally Posted by KaRLiToS View Post

You should never be at 1.6v for 4.2 GHz.

The VID will always oscillate according to the work load.

Please don't call yourself an idiot. You are not.

lol, my bad typing too fast here and going back and forth with other things. its 1.16v doh.gif
Edited by TheProfiteer - 4/1/13 at 11:08pm
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post #10 of 15
I would think that cooler (even if it isn't great) would be able to keep it below 100C at 4.3 - are you sure it is seated correctly? Try turning the fan speed up on it.
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