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Sandy Bridge E Overclocking Guide Walk through, Explanations, and Support for all X79 Overclockers - Page 20

post #191 of 397
yep the clock was set to 4.2ghz, 42 multi with 100 bus. if i set the LLC to medium its even worse, dropped down to 1.20v and Prime95 BSOD'd a lot quicker. i guess my chip isnt too crash hot then and just needs more volts to hold those clocks.

temps seem fine, i was able to run Prime for like 6 mins or something and during, max core temps were 55c.

im aiming for a stable 4.5-4.6ghz 24/7. see how it goes anyway.
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post #192 of 397
I'm taking the first steps in OC'ing my 3930k on my Rampage 4 Formula board. I've already run into a problem and I only made ONE change in the BIOS.

I changed "By All Cores" from Auto to 45. Before this, in Windows the core speed would clock up to a max of 3.8GHz and down to 1.2GHz at idle and voltage would go up to 1.3V max and .864V at idle. After making this change, new max clock speed is 4.5GHz (duh tongue.gif) and at idle it clocks down to 1.2GHz, but now the voltage is pegged at 1.43V and doesn't drop below that even when idle.

So I'm confused why the voltage is set to a fixed number now instead of being dynamic when I only changed this one setting. What am I missing here?
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post #193 of 397
Quote:
Originally Posted by Warrior1986 View Post

I'm taking the first steps in OC'ing my 3930k on my Rampage 4 Formula board. I've already run into a problem and I only made ONE change in the BIOS.
I changed "By All Cores" from Auto to 45. Before this, in Windows the core speed would clock up to a max of 3.8GHz and down to 1.2GHz at idle and voltage would go up to 1.3V max and .864V at idle. After making this change, new max clock speed is 4.5GHz (duh tongue.gif) and at idle it clocks down to 1.2GHz, but now the voltage is pegged at 1.43V and doesn't drop below that even when idle.
So I'm confused why the voltage is set to a fixed number now instead of being dynamic when I only changed this one setting. What am I missing here?
So whay you are interested in dinamic voltages? You should be woried abaut temperatures!
It is obvious that you changed the clock on the basis of a study. All I can say is that you did not finish the study and you have to study some more! At least you shold start with processor and how hi work.
For your information You just purchased a fancy motherboard. One of the advantages of such a mobo is a protection from almost any reckless setting.
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post #194 of 397
Because I want it to decrease the voltage the CPU is getting while idle, just like it did before I changed the multiplier setting.
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post #195 of 397
Quote:
Originally Posted by Warrior1986 View Post

Because I want it to decrease the voltage the CPU is getting while idle, just like it did before I changed the multiplier setting.
It is quite stupid reason! Voltage in idle state of processor means nothing - just keep him a live (to not shut down). The best what you can do is to monitor power consuption (should be around 20-40 W in idle)
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post #196 of 397
Quote:
Originally Posted by kope View Post

It is quite stupid reason! Voltage in idle state of processor means nothing - just keep him a live (to not shut down). The best what you can do is to monitor power consuption (should be around 20-40 W in idle)
Not a stupid reason at all. What the heck are you talking about ?

In order to get the idle voltage to drop and rise along with speedstep, you must set your vcore mode to Offset.

A very good explanation of offset mode overclocking can be found here. It is a much trickier form of overclocking, but in the end it's worth it.
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post #197 of 397
Monitoring just voltages means nothing. Much more important is curent (amperes -> produce heat) - we don't have posibilities to measure curent so what we do is monitoring of temperatures (roughly speaking, the product of the current). In theory biger voltage provides smaler curent but also posibility for breakedown if you go over limitation of processor (you can search about and it is most important if you plan to go "over") keeping voltages under 1.5V, while processor is loaded, it is some kind of must to be.
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post #198 of 397
Quote:
but in the end it's worth it.
I'm talking about electriciti and basic rules and lows! Offset metod is just an method and by any means provides the same results like manual method
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post #199 of 397
Quote:
Originally Posted by kope View Post

Monitoring just voltages means nothing. Much more important is curent (amperes -> produce heat) - we don't have posibilities to measure curent so what we do is monitoring of temperatures (roughly speaking, the product of the current). In theory biger voltage provides smaler curent but also posibility for breakedown if you go over limitation of processor (you can search about and it is most important if you plan to go "over") keeping voltages under 1.5V, while processor is loaded, it is some kind of must to be.

Thanks for the lesson. The concept that no power is generated without the presence of current regardless of voltage is not new, nor did you discover it.

What is irrefutable is that those that run fixed voltage overclocks have a higher idle CPU temperature than those that run offset mode. If you want to run fixed voltage on your CPU then knock yourself out. Those that don't are not stupid
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post #200 of 397
Quote:
those that run fixed voltage overclocks have a higher idle CPU temperature
This shows to me how a little you know about! there is no option for "fixed voltage" - there is manual voltage and by setting other around 20 more options you can "say" to your motherboard how to deal with voltages.
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CPUMotherboardGraphicsRAM
I7 3930k ASUS P9x79 VGA GeForce GTX 770 4GB Dual FTW w/ EVGA ACX Co... HyperX Predator (T2) - 8GB Kit* (2x4GB) - DDR3 ... 
Hard DriveHard DriveHard DriveHard Drive
Mushkin Enhanced Chronos MKNSSDCR240GB 2.5" 240GB Seagate ST2000VX002 WD20EZRX Kingston HyperX 3K SH103S3/240G 2.5" 240GB 
Optical DriveCoolingOSMonitor
Optiarc DVD RW AD-7200S SEIDON 240mm Windows 8 ASUS MX279 
MonitorPowerCaseAudio
ASUS MX279 Thermaltake 750W LC Power Infiltrator M-Audio Delta 1010Lt 
Audio
M-Audio FireWire Solo 
CPUMotherboardGraphicsRAM
I7 3930k ASUS P9X79  GV-N670OC-2GD  PXD38G2133C11K 
Hard DriveCoolingOSMonitor
Corsair Force 3 Noktua NH D14 Windows 8 ASUS VE278Q 
PowerCase
SeaSonic X750 Gold 750W  Cooler Master HAF 922 
CPUMotherboardGraphicsGraphics
I7 3930k ASUS P9X79 MSI N670GTX-PM2D2GD5/OC MSI N670GTX-PM2D2GD5/OC 
RAMHard DriveCoolingOS
PXD38G2133C11K Corsair Force 3 Noktua NH D14 Windows 8 
MonitorPowerCaseOther
ASUS VE278Q SeaSonic M12II Cooler Master HAF 922 NaturalPoint TrackIR 5 Pro & TrackClip Pro Bundle 
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  • Sandy Bridge E Overclocking Guide Walk through, Explanations, and Support for all X79 Overclockers
Overclock.net › Forums › Intel › Intel CPUs › Sandy Bridge E Overclocking Guide Walk through, Explanations, and Support for all X79 Overclockers