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Am I overclocking this i5 2500k/GA-Z77-D3H properly? I'm afraid I'm doing something very wrong... - Page 4

post #31 of 117
More than you'll ever need to know about C states, but here you go: http://www.hardwaresecrets.com/article/611
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post #32 of 117
Quote:
Originally Posted by Icekilla View Post

I did set it to medium, but look at what happened under BurnTest... And sometimes, under Prime95, the voltage drops to 1.344V, but it goes back to 1.356V quickly.

 

What happens with the next setting lower than Medium?

 

By the way, there's nothing malfunctioning here or anything like that.  We're just adjusting the way the voltage is handled.  If the voltage goes up under load, then this is vRise which can sometimes make the Voltage Regulator Module a little hot.  If the voltage droops under load, then that's "vDroop" and the result is a cooler VRM than what you'd get with vRise.

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post #33 of 117
Thread Starter 
I set voltage regulation to low. CPU-Z reports 1.344V in idle and 1.322V in load under burntest. Same voltage for Prime95.

This doesn't looks good.

Shall I just set it to auto and see what happens? Or keep it in high? The other options are standard and normal.
Edited by Icekilla - 12/13/12 at 2:46pm
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post #34 of 117

Oh no, don't worry;  there's nothing malfunctioning.  It's been working perfectly this whole time.  All we were doing was seeing what setting results in vRise, and then where the vDroop begins.  Was it always idling at 1.344V for Medium and High?

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post #35 of 117
Thread Starter 
For high, it was idling at 1.356V, for medium, it was idling at that same value, but went down at full load.
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post #36 of 117
Quote:
Originally Posted by Icekilla View Post

For high, it was idling at 1.356V, for medium, it was idling at that same value, but went down at full load.

 

Oh, then medium is a good setting too.  I just get the impression from the real experts on here that vRise is worse because the VRM gets hotter which can create some instability if it gets too hot.  Another problem with vRise is the idle voltage is lower than the full-load voltage which can result in instability while idling.  ;)

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post #37 of 117
Thread Starter 
Which setting should I use then? Because medium was causing problems. I get the impression that High should be the proper choice for me, but I'm willing to change it.

On another note, I'm testing again BurnTest with the regulation set to high, and it seems like the Core Voltage is sitting right at 1.356V. Shall we leave it as it is?
Edited by Icekilla - 12/13/12 at 3:04pm
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post #38 of 117
Quote:
Originally Posted by Icekilla View Post

Which setting should I use then? Because medium was causing problems.

 

What problems was it causing again?  I apologize for asking.

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It's a computer!
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i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
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post #39 of 117
Thread Starter 
With Medium and low, the full load voltage was dropping from the initial value, which was 1.355V. This caused a 101 BSOD.

BTW The Core Voltage is rising again to 1.368V, this is using the "High" setting. Also, Burntest indicated that my CPU did not past the test and it's unstable.

Maybe I need to raise my voltage to 1.36V?
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post #40 of 117
Quote:
Originally Posted by Icekilla View Post

With Medium and low, the full load voltage was dropping from the initial value, which was 1.355V.
BTW The Core Voltage is rising again to 1.368V, this is using the "High" setting

 

This is all very normal.  The idle voltage is the result of something called "vDrop".  It's a design created by Intel.  When the voltage drops under full load, that's "vDroop" and it's another design created by Intel.  However, "vRise" is where the voltage goes up under load, and this is just what happens when the Load-Line Calibration is so high that it reverses vDroop.

 

So apparently, the High setting gives you vRise.  You can leave it like this if you want, but I will caution you that this can result in hotter VRM temps and it can result in BSODs or lock-ups while idling because your idle voltage is lower than the full load voltage.

 

So, I would use Medium or Low.  Experiment.  There is pretty much no Right or Wrong here.

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250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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It's a computer!
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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