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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 259

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post #2581 of 9531
Hello
I've got problem with high voltage on my cpu with green overlocking (offset +0.005 and turbo +0,004) its about 1.354V. Im not looking for extreme overlocking (aiming for 4.0 - 4.3 oc).
Is there any way to lower that voltage without touching negative offset ? My turbo cant be set at minus.

Stock:
Idle: 16x ~0.968 V temp ~36c
Stress: 33x ~1.208V Temp ~ 57c (on prime)

LLC is set at 2. All settings are set like in the guide except for voltages.

PCH Voltage - 1.059
CPU PPL Voltage - 1.750
VTT Voltage - 1.051
VCSSA - 0,925


Sorry for my english and regards
Edited by Szwedu - 1/12/13 at 2:29am
post #2582 of 9531
Figured this might be relevant to those overclocking on the extreme6:

I did some readings on my Asrock Z77 Extreme6 using a digital multimeter to test BIOS vs. CPU-z vs. Digital Multimeter


On the Asrock extreme6 motherboard, LLC set to 2 (second highest), turbo set to +0.004v (lowest setting), using fixed voltage values in bios, internal pll enabled throughout (just not sure if that has any effect at all for power delivery but was needed for higher multi, so I enabled for the lower too) and measuring load voltage using a digital multimeter during prime95 ver.27.9 small ffts (12k)


Multiplier Used | Bios setting | CPU-Z 1.62 x64 | Digital Multi-meter
____________ | __________ | ______________ | _________________
36 | 1.100v | 1.080v | 1.117v
36 | 1.150v | 1.128v | 1.168v
36 | 1.200v | 1.176v | 1.220v
36 | 1.250v | 1.224v | 1.270v
36 | 1.300v | 1.272v | 1.322v
36 | 1.350v | 1.320v | 1.373v
36 | 1.400v | 1.376v | 1.426v
36 | 1.450v | 1.416v | 1.478v
49 | 1.450v | 1.416v | 1.488v
49 | 1.500v | 1.464v | 1.540v
49 | offset= -0.010v ; turbo= +0.207v | 1.368v | 1.438v

You guys are welcome to take from this what you will. But it seems that the BIOS setting is more closely matched to what is going on than the CPU-z reading. Also when turbo offset is used the gap between CPU-z and the DMM seems increase.
post #2583 of 9531
Hi. I am having some trouble ocing my i5 2500k cpu with asrock z68 pro3(bios 2.10).

I have used the settings given in this guide and my Vcore voltage is now +0.005v and additional turbo voltage is +0.004v. I was trying to see how high CPU ratio i am able to use in prime95 with these voltages, but i am not sure if these voltages apply during prime95. CPU-Z says during prime95 with CPU ratio being 45 that the voltage would be 1.4v. Also the temperatures rises pretty high.

I guess that the voltage should not rise that much. Almost like the voltage would use some auto settings.. Any ideas what could be the reason for this? I am totally new to ocing so i would be thankfull for any help.
post #2584 of 9531
Quote:
Originally Posted by Jokehai View Post

Hi. I am having some trouble ocing my i5 2500k cpu with asrock z68 pro3(bios 2.10).

I have used the settings given in this guide and my Vcore voltage is now +0.005v and additional turbo voltage is +0.004v. I was trying to see how high CPU ratio i am able to use in prime95 with these voltages, but i am not sure if these voltages apply during prime95. CPU-Z says during prime95 with CPU ratio being 45 that the voltage would be 1.4v. Also the temperatures rises pretty high.

I guess that the voltage should not rise that much. Almost like the voltage would use some auto settings.. Any ideas what could be the reason for this? I am totally new to ocing so i would be thankfull for any help.

As far as I know if you have the offset voltage at +0.005v even with level 1 load line calibration it should not be rising to 1.4v..... thats just crazy. What cpu cooler do you have?
post #2585 of 9531
I mostly used this guide in overclocking my new gaming rig.. thanks alot it was very helpful. But now I have a few questions for people smarter than myself. This was my first build and my first try at overclocking so bear with me.

CM Storm Trooper
core i-5 3570k
cm hyper evo 212
asrock z77 extreme 4
128 gb samsung 840 pro
cm silent pro gold 800 w

I know I called this a gaming rig but I don't yet have graphics cards they will come when the money is there. This is where I've gotten so far with my overclocking- took it to 4.5 ghz and ( I think) its stable. When I run prime 95 with the custom test from this thread I get the following results after 7 hours. My highest core temps max out between 66-72C. My vcore maxes out at 1.21V. My CPU temp maxes out at 39C. I may actually be able to lower my vcore voltage some and remain stable I just haven't tried yet. So my first question would be what important factors am I missing in checking that I have a stable overclock. From what I've read the core temps are what I should be looking at not the CPU temps is that correct? And lastly some advice on whether or not I should take it further given the results I have at 4.5 ghz. Any advice is welcome, thanks.
post #2586 of 9531
Quote:
Originally Posted by Szwedu View Post

Hello
I've got problem with high voltage on my cpu with green overlocking (offset +0.005 and turbo +0,004) its about 1.354V. Im not looking for extreme overlocking (aiming for 4.0 - 4.3 oc).
Is there any way to lower that voltage without touching negative offset ? My turbo cant be set at minus.

Stock:
Idle: 16x ~0.968 V temp ~36c
Stress: 33x ~1.208V Temp ~ 57c (on prime)

LLC is set at 2. All settings are set like in the guide except for voltages.

PCH Voltage - 1.059
CPU PPL Voltage - 1.750
VTT Voltage - 1.051
VCSSA - 0,925


Sorry for my english and regards

There is nothing wrong w/ a negative offset. Since your going for a 4.0-4.3ghz overclock then most likely you will be setting a negative offset so that you can bring your voltage down because its too high w/ a +0.005 which is the lowest Positive offset.

Additional turbo voltage only kicks in at full load so you wont be using a negative turbo.

PCH, PLL, VTT, and VCSSA should be left on auto because you shouldnt have to touch these w/ your desired overclock.
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post #2587 of 9531
Quote:
Originally Posted by Jokehai View Post

Hi. I am having some trouble ocing my i5 2500k cpu with asrock z68 pro3(bios 2.10).

I have used the settings given in this guide and my Vcore voltage is now +0.005v and additional turbo voltage is +0.004v. I was trying to see how high CPU ratio i am able to use in prime95 with these voltages, but i am not sure if these voltages apply during prime95. CPU-Z says during prime95 with CPU ratio being 45 that the voltage would be 1.4v. Also the temperatures rises pretty high.

I guess that the voltage should not rise that much. Almost like the voltage would use some auto settings.. Any ideas what could be the reason for this? I am totally new to ocing so i would be thankfull for any help.

So after setting your Offset to +0.005, Turbo to +0.004, and multi to 45, CPU-z shows 1.4 vcore at full load?

What are your temps and how long did you run P95?
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post #2588 of 9531
Quote:
Originally Posted by bluecourt View Post

I mostly used this guide in overclocking my new gaming rig.. thanks alot it was very helpful. But now I have a few questions for people smarter than myself. This was my first build and my first try at overclocking so bear with me.

CM Storm Trooper
core i-5 3570k
cm hyper evo 212
asrock z77 extreme 4
128 gb samsung 840 pro
cm silent pro gold 800 w

I know I called this a gaming rig but I don't yet have graphics cards they will come when the money is there. This is where I've gotten so far with my overclocking- took it to 4.5 ghz and ( I think) its stable. When I run prime 95 with the custom test from this thread I get the following results after 7 hours. My highest core temps max out between 66-72C. My vcore maxes out at 1.21V. My CPU temp maxes out at 39C. I may actually be able to lower my vcore voltage some and remain stable I just haven't tried yet. So my first question would be what important factors am I missing in checking that I have a stable overclock. From what I've read the core temps are what I should be looking at not the CPU temps is that correct? And lastly some advice on whether or not I should take it further given the results I have at 4.5 ghz. Any advice is welcome, thanks.

You need to give us more info. What offset, what turbo, and idle voltage

Dont understand your temps maxing out at 66-72 but also at 39?
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Gskill RipJaws X 16GB 1600mhz Seagate 2TB Seagate 320GB ASUS Burner 
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Cooler Master Eisberg 240L + 120mm Rad Koolance 3/8 x 1/2 Compression Fittings PrimoChill Advanced LRT Windows 7  
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RAMHard DriveHard DriveCooling
Gskill RipJaws V 16GB 3000mhz Samsung 850 EVO 250GB Seagate Barracuda 2TB EK-Supremacy EVO CPU Water Block 
CoolingCoolingCoolingCooling
EK R9 290X GPU Waterblocks EK-XRES 140 Revo D5 PWM Pump Alphacool NexXxoS 360mm ST30 Alphacool NexXxoS 240mm ST30 
CoolingCoolingOSMonitor
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post #2589 of 9531
My offset is at +0.015V and my turbo is at +0.012V, Sorry for the confusion there but using speedfan it gives me temperature measurements for core 0,1,2,3 and also another measurement for the cpu. The core measurements are the ones that get up around 70C when running prime95 and the cpu measurement stays in the high 30s. My idle voltage (assuming this is my vcore while my computer is idle) is about 0.94-0.97 . Thanks
post #2590 of 9531
Quote:
Originally Posted by Jpmboy View Post

That's alot of Vcore for 47. what's your p95 max temp after an hour or two? You might be able to lower turbo a bit...
Good move dropping CPU PLL. Does your ram require 1.65?

i drop turbo to +0,180 biggrin.gif my temp's are below biggrin.gif my ram's are cheep bustard's and needs high voltage :/

and i did that to my cpu tongue.gif it's very easy and help me drop temp's about -20C biggrin.gif that's a lot biggrin.gif


Edited by zaodrze244 - 1/12/13 at 12:12pm
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