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3930K OC issue

post #1 of 15
Thread Starter 
Hi! I get a little problem with my overclock.
I can have a stable overclock with the Offset mode until 4.8
But when i try to use it with 5.0GHz my computer crash at startup or if not on the desktop , if i use the fixed mode with 1.520 i have no trouble at all.
With the offset mod at +.0.180 i get the same voltage as the fixed mod and i dont understand where the instability could come from, at 1.54 it seems to be stable but i thrtottle and sometime crash , any ideas? thanks
Edited by narutonic - 4/18/17 at 6:38am
post #2 of 15
You know 1.52 is way too much right?
post #3 of 15
Thread Starter 
For an SB-E ? not really. It's high yes but too much nope.
And thats also why i want to solve my stability issue with Offset mode which would pump less vcore at idle.
post #4 of 15
Quote:
Originally Posted by narutonic View Post

For an SB-E ? not really. It's high yes but too much nope.
And thats also why i want to solve my stability issue with Offset mode which would pump less vcore at idle.

is this for benching or for 24/7?
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OCZ vertex 3 240gb  Samsung 1tb Custom Watercooling Loop Windows 10 64bit 
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post #5 of 15
Thread Starter 
In fixed mod for benching(then i return to 4.8 1.4v 24/7) and i'd like to 24/7 with the Offset mode
post #6 of 15
Quote:
Originally Posted by narutonic View Post

In fixed mod for benching(then i return to 4.8 1.4v 24/7) and i'd like to 24/7 with the Offset mode



try this, is my friends oc, i have used like that for benching but with more volts. but lower than 1.4v so 1.5 is WAYYY TO HIGH to achieve 5ghz, you must check your ram's speed/frequency and voltage, maybe u need to raise it a bit
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i7 3930k @4.6ghz HT 1.3 v EVGA X79 FTW gtx 1080 FE with EK waterblock 16gb Corsair Vengance 
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OCZ vertex 3 240gb  Samsung 1tb Custom Watercooling Loop Windows 10 64bit 
MonitorKeyboardPowerCase
Samsung 27" 2ms 1920*1080 G.SKILL km570 mx Corsair HX 850w Thermaltake core p5 
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CPUMotherboardGraphicsRAM
i7 3930k @4.6ghz HT 1.3 v EVGA X79 FTW gtx 1080 FE with EK waterblock 16gb Corsair Vengance 
Hard DriveHard DriveCoolingOS
OCZ vertex 3 240gb  Samsung 1tb Custom Watercooling Loop Windows 10 64bit 
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Samsung 27" 2ms 1920*1080 G.SKILL km570 mx Corsair HX 850w Thermaltake core p5 
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post #7 of 15
Thread Starter 
Take a look at the 5Hgz threads you'll see thzt 1.5 is pretty common for that frequence and ecery cpu is different
With the same voltage as your friend i woukd only achieve a 4.7GHz
post #8 of 15
Quote:
Originally Posted by narutonic View Post

Take a look at the 5Hgz threads you'll see thzt 1.5 is pretty common for that frequence and ecery cpu is different
With the same voltage as your friend i woukd only achieve a 4.7GHz

well that is kinda bad luck, i can achieve 4.7 at 1.3v
Yukss´s rig
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i7 3930k @4.6ghz HT 1.3 v EVGA X79 FTW gtx 1080 FE with EK waterblock 16gb Corsair Vengance 
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OCZ vertex 3 240gb  Samsung 1tb Custom Watercooling Loop Windows 10 64bit 
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Samsung 27" 2ms 1920*1080 G.SKILL km570 mx Corsair HX 850w Thermaltake core p5 
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Yukss´s rig
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CPUMotherboardGraphicsRAM
i7 3930k @4.6ghz HT 1.3 v EVGA X79 FTW gtx 1080 FE with EK waterblock 16gb Corsair Vengance 
Hard DriveHard DriveCoolingOS
OCZ vertex 3 240gb  Samsung 1tb Custom Watercooling Loop Windows 10 64bit 
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Samsung 27" 2ms 1920*1080 G.SKILL km570 mx Corsair HX 850w Thermaltake core p5 
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post #9 of 15
Thread Starter 
I dont really know , i can achieve 4.8 at a decent voltage (1.4) and from what i know it's not really bad but yeah i would not say no for a cpu the same as your friends.
And you don'thave any suggestions about my issue ? It's very strange, itrequires more voltage than the fixed mode and even with the additional voltage i still crash with it. blinksmiley.gif
post #10 of 15
Quote:
Originally Posted by narutonic View Post

I dont really know , i can achieve 4.8 at a decent voltage (1.4) and from what i know it's not really bad but yeah i would not say no for a cpu the same as your friends.
And you don'thave any suggestions about my issue ? It's very strange, itrequires more voltage than the fixed mode and even with the additional voltage i still crash with it. blinksmiley.gif

the crashes are not always cpu's fault, you have to check your ram's nominal speed, this speed wont change if you do you overclock by using only the multiplier, but it will change if you increase you bus speed.

Some motherboard have bad voltages regulators (MOSFET). The CPU tells the MOSFET the requested voltage, and the MOSFET uses a series of logic gates to assist in delivering that voltage (from the 12v supply). so basically is the power/voltage requested by cpu varies as minimal as 0.01volts it might crash at starting windows.

Note, You have to MAKE sure that you have Vdroop disable on your bios.
Yukss´s rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930k @4.6ghz HT 1.3 v EVGA X79 FTW gtx 1080 FE with EK waterblock 16gb Corsair Vengance 
Hard DriveHard DriveCoolingOS
OCZ vertex 3 240gb  Samsung 1tb Custom Watercooling Loop Windows 10 64bit 
MonitorKeyboardPowerCase
Samsung 27" 2ms 1920*1080 G.SKILL km570 mx Corsair HX 850w Thermaltake core p5 
MouseMouse PadAudio
Saitek R.A.T 5 Razer Goliathus speed SoundBlaster x-fi Titaniun 
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Yukss´s rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930k @4.6ghz HT 1.3 v EVGA X79 FTW gtx 1080 FE with EK waterblock 16gb Corsair Vengance 
Hard DriveHard DriveCoolingOS
OCZ vertex 3 240gb  Samsung 1tb Custom Watercooling Loop Windows 10 64bit 
MonitorKeyboardPowerCase
Samsung 27" 2ms 1920*1080 G.SKILL km570 mx Corsair HX 850w Thermaltake core p5 
MouseMouse PadAudio
Saitek R.A.T 5 Razer Goliathus speed SoundBlaster x-fi Titaniun 
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