Overclock.net › Forums › Intel › Intel CPUs › 3930k voltage question (not a what voltage is ok thread)
New Posts  All Forums:Forum Nav:

3930k voltage question (not a what voltage is ok thread)

post #1 of 10
Thread Starter 
Hi guys,

I overclocked my 3930k.

It's running 4.4ghz @ 1.270v bios (1.285v cpu-z). Prime 95 "stable" for 10 mins (I know I know...) Temps are fine.

Motherboard is an Asus x79 PRO.

All I did in the bios was reset to optimized defaults.

Change Multiplyer to 44x

Cpu vcore to manual and set to 1.27v

Turned CPU Load Line Calibration to high (to maintain a steady voltage under load)

Enable all C states. (from auto setting)

Set ram frequency and voltage to 1600mhz @ 1.5v

Turn off all monitoring settings which forces the cpu fan to run at full speed 24/7. (All other fans are plugged into power supply directly)

When I monitor cpu-z I see that the voltage remains at 1.285v even though my processor downclocks to 12x @ 1200mhz on idle.

The cpu draws very little power on idle at around 16-18 watts.

My questions are

Is there any advantage to having the frequency drop if the cpu vcore does not?

Why does my cpu vcore not drop on idle @ 1200mhz?

Where is the setting in the bios that controls this?

Is there any real advantage to have the cpu vcore drop down since my voltage is nice and safe?

Should I disable C states so the CPU and just run 4.4ghz 24/7 if there is no advantage to lowering the voltage on idle?

Any info would be appreciated!

Thanks!

Kieran
Edited by 180sxboosting - 4/15/12 at 5:52pm
Kizbot
(18 items)
 
  
MotherboardGraphicsHard DriveHard Drive
Asus X370 Prime Pro Asus Direct CUii 570 GTX Crucial M4 256GB SSD Crucial M4 128GB SSD 
Hard DriveHard DriveHard DriveHard Drive
1TB Samsung HDD 1TB Samsung HDD 320GB Western Digital HDD 2tb Western Digital HDD 
CoolingOSMonitorMonitor
NH-D14 CPU Cooler Windows 10 Pro 64 bit 22" Asus Widescreen 22" LG Widescreen 
KeyboardPowerCaseMouse
Standard Keyboard Corsair HX-1050 Coolermaster HAF-X Razor Gaming Mouse 
AudioAudio
Audio Technica ATH-M50 Headphones BOSE Minilink Bluetooth Speaker 
  hide details  
Reply
Kizbot
(18 items)
 
  
MotherboardGraphicsHard DriveHard Drive
Asus X370 Prime Pro Asus Direct CUii 570 GTX Crucial M4 256GB SSD Crucial M4 128GB SSD 
Hard DriveHard DriveHard DriveHard Drive
1TB Samsung HDD 1TB Samsung HDD 320GB Western Digital HDD 2tb Western Digital HDD 
CoolingOSMonitorMonitor
NH-D14 CPU Cooler Windows 10 Pro 64 bit 22" Asus Widescreen 22" LG Widescreen 
KeyboardPowerCaseMouse
Standard Keyboard Corsair HX-1050 Coolermaster HAF-X Razor Gaming Mouse 
AudioAudio
Audio Technica ATH-M50 Headphones BOSE Minilink Bluetooth Speaker 
  hide details  
Reply
post #2 of 10
There is indeed an advantage of having your cpu throttle frequency even if the vcore doesn't, your temps will be lower at 1.2ghz then at 4.4ghz even at the same vcore.


The reason your vcore isn't dropping is cuz you set a manual value for it, you can only get it to throttle with frequency with an offset overclock, not manual.
There are a few guides here talking about offset, it's what I use and I'm very satisfied with the results.
I don't think disabling C-states and speedstep is worth if you can get away with leaving them on, C1e especially.
Warchief
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930k @4.5 ghz - 1.280v Asus Sabertooth X79 EVGA GTX 980 ACX 2.0 Corsair Vengeance 16gb 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 128GB Seagate 31000528AS 1tb LG DVDRW Corsair H80 
OSMonitorKeyboardPower
Windows 8.1 Pro Dell S2340L 23" Corsair K50 Sentey Golden Steel Power 850W 
CaseMouse
Corsair Carbide 500R Corsair M95 
  hide details  
Reply
Warchief
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930k @4.5 ghz - 1.280v Asus Sabertooth X79 EVGA GTX 980 ACX 2.0 Corsair Vengeance 16gb 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 128GB Seagate 31000528AS 1tb LG DVDRW Corsair H80 
OSMonitorKeyboardPower
Windows 8.1 Pro Dell S2340L 23" Corsair K50 Sentey Golden Steel Power 850W 
CaseMouse
Corsair Carbide 500R Corsair M95 
  hide details  
Reply
post #3 of 10
Thread Starter 
Thanks for the reply! Great info. I need to read up a bit more on offsets. +REP

Thanks!!
Kizbot
(18 items)
 
  
MotherboardGraphicsHard DriveHard Drive
Asus X370 Prime Pro Asus Direct CUii 570 GTX Crucial M4 256GB SSD Crucial M4 128GB SSD 
Hard DriveHard DriveHard DriveHard Drive
1TB Samsung HDD 1TB Samsung HDD 320GB Western Digital HDD 2tb Western Digital HDD 
CoolingOSMonitorMonitor
NH-D14 CPU Cooler Windows 10 Pro 64 bit 22" Asus Widescreen 22" LG Widescreen 
KeyboardPowerCaseMouse
Standard Keyboard Corsair HX-1050 Coolermaster HAF-X Razor Gaming Mouse 
AudioAudio
Audio Technica ATH-M50 Headphones BOSE Minilink Bluetooth Speaker 
  hide details  
Reply
Kizbot
(18 items)
 
  
MotherboardGraphicsHard DriveHard Drive
Asus X370 Prime Pro Asus Direct CUii 570 GTX Crucial M4 256GB SSD Crucial M4 128GB SSD 
Hard DriveHard DriveHard DriveHard Drive
1TB Samsung HDD 1TB Samsung HDD 320GB Western Digital HDD 2tb Western Digital HDD 
CoolingOSMonitorMonitor
NH-D14 CPU Cooler Windows 10 Pro 64 bit 22" Asus Widescreen 22" LG Widescreen 
KeyboardPowerCaseMouse
Standard Keyboard Corsair HX-1050 Coolermaster HAF-X Razor Gaming Mouse 
AudioAudio
Audio Technica ATH-M50 Headphones BOSE Minilink Bluetooth Speaker 
  hide details  
Reply
post #4 of 10
You can't say that your temps are fine after 10min prime. 10 is not enough to give you a real idea.
post #5 of 10
Quote:
Originally Posted by Frank33 View Post

You can't say that your temps are fine after 10min prime. 10 is not enough to give you a real idea.

10 min of prime might not be enough to check stability but temps? Yeah you can, difference will be 1-2 degrees tops anyway.
Warchief
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930k @4.5 ghz - 1.280v Asus Sabertooth X79 EVGA GTX 980 ACX 2.0 Corsair Vengeance 16gb 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 128GB Seagate 31000528AS 1tb LG DVDRW Corsair H80 
OSMonitorKeyboardPower
Windows 8.1 Pro Dell S2340L 23" Corsair K50 Sentey Golden Steel Power 850W 
CaseMouse
Corsair Carbide 500R Corsair M95 
  hide details  
Reply
Warchief
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 3930k @4.5 ghz - 1.280v Asus Sabertooth X79 EVGA GTX 980 ACX 2.0 Corsair Vengeance 16gb 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 128GB Seagate 31000528AS 1tb LG DVDRW Corsair H80 
OSMonitorKeyboardPower
Windows 8.1 Pro Dell S2340L 23" Corsair K50 Sentey Golden Steel Power 850W 
CaseMouse
Corsair Carbide 500R Corsair M95 
  hide details  
Reply
post #6 of 10
Quote:
Originally Posted by DMHernandez View Post

10 min of prime might not be enough to check stability but temps? Yeah you can, difference will be 1-2 degrees tops anyway.

It'll build higher then 1-2 degrees after 20-24hours, i fold 24/7 and i see more diff then this after a few days of folding
post #7 of 10
Yep C1E enabled is responsible for dropping vcore when the CPU downclocks. Good luck with that beast of a CPU =)
    
CPUMotherboardGraphicsRAM
3930k 4.7 1.368v RIVE BIOS 2105 680L 1330/7011 16GB Samsung 2133Mhz  
Hard DriveCoolingOSMonitor
Crucial M4 240GB  H110 after 4x H220 RMA Win 8.1 64bit XL2420T Lightboost  
KeyboardPowerCaseMouse
SS 6Gv2  EVGA 1300G2  Arc Midi R2 Zowie AM, many opticals 
Mouse PadAudioAudioAudio
SS QCK+ Xonar Essence STX AK100 MKII Shure SE846  
AudioAudioOther
Ultrasone Pro 900 Sennheiser HD700 Intel EXPI9301CT NIC 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
3930k 4.7 1.368v RIVE BIOS 2105 680L 1330/7011 16GB Samsung 2133Mhz  
Hard DriveCoolingOSMonitor
Crucial M4 240GB  H110 after 4x H220 RMA Win 8.1 64bit XL2420T Lightboost  
KeyboardPowerCaseMouse
SS 6Gv2  EVGA 1300G2  Arc Midi R2 Zowie AM, many opticals 
Mouse PadAudioAudioAudio
SS QCK+ Xonar Essence STX AK100 MKII Shure SE846  
AudioAudioOther
Ultrasone Pro 900 Sennheiser HD700 Intel EXPI9301CT NIC 
  hide details  
Reply
post #8 of 10
Quote:
Originally Posted by Frank33 View Post

It'll build higher then 1-2 degrees after 20-24hours, i fold 24/7 and i see more diff then this after a few days of folding

Who needs to worry about rising temps after 24 HOURS of 100% load in the real world? Unless you are using your PC as server for Google or something.

Some people get so obsessed by stability testing sometimes I think they forget what it is there for in the first place. The reason you check your PC's stability is to see if it will run for what you need to it to for reasonable periods without crashing; not to try and crash it. It's like when people say "I use stress tesing software X because it's more likely to make your PC crash", well great but I'd rather have the one that strained my CPU in a realistic manner that emulates the kind of maximum stress it will be put under in real usage.

Ever seen that episode of Top Gear when they get that Toyata truck and drive it into the river, put it on top of a building which is then demolished, set it on fire etc to test it's durability? Well that was fun but not how you should be testing cars generally, some OCer's take the Top Gear mentality to stability checking sometimes I fear.
Edited by estebanrey - 4/16/12 at 1:44am
post #9 of 10
Quote:
Originally Posted by estebanrey View Post

Who needs to worry about rising temps after 24 HOURS of 100% load in the real world? Unless you are using your PC as server for Google or something.
Some people get so obsessed by stability testing sometimes I think they forget what it is there for in the first place. The reason you check your PC's stability is to see if it will run for what you need to it to for reasonable periods without crashing; not to try and crash it. It's like when people say "I use stress tesing software X because it's more likely to make your PC crash", well great but I'd rather have the one that strained my CPU in a realistic manner that emulates the kind of maximum stress it will be put under in real usage.
Ever seen that episode of Top Gear when they get that Toyata truck and drive it into the river, put it on top of a building which is then demolished, set it on fire etc to test it's durability? Well that was fun but not how you should be testing cars generally, some OCer's take the Top Gear mentality to stability checking sometimes I fear.

+100000
4K All day long
(14 items)
 
  
CPUMotherboardGraphicsGraphics
I7-3930K C-2@4.6ghz Asus Rampage IV Extreme EVGA GeForce GTX 980 Ti Superclocked+ ACX 2.0+ ... EVGA GeForce GTX 980 Ti Superclocked+ ACX 2.0+ ... 
RAMHard DriveHard DriveHard Drive
16GB Corsair Dominator-GT@2133mhz  256GB SSD Plextor PX-256M3 Hitachi 3TB Deskstar Samsung Evo Pro 512GB 
CoolingOSMonitorPower
Custom Water Loop with 360mm + 240mm Radiators Windows 10 Pro & Windows 7 Ultimate Asus ROG Swift & Dell P2715Q 4k  Antec HCP Platinum 80 PLUS 1300W 
CaseMouse
NZXT Switch 810 Razer Mamba 
  hide details  
Reply
4K All day long
(14 items)
 
  
CPUMotherboardGraphicsGraphics
I7-3930K C-2@4.6ghz Asus Rampage IV Extreme EVGA GeForce GTX 980 Ti Superclocked+ ACX 2.0+ ... EVGA GeForce GTX 980 Ti Superclocked+ ACX 2.0+ ... 
RAMHard DriveHard DriveHard Drive
16GB Corsair Dominator-GT@2133mhz  256GB SSD Plextor PX-256M3 Hitachi 3TB Deskstar Samsung Evo Pro 512GB 
CoolingOSMonitorPower
Custom Water Loop with 360mm + 240mm Radiators Windows 10 Pro & Windows 7 Ultimate Asus ROG Swift & Dell P2715Q 4k  Antec HCP Platinum 80 PLUS 1300W 
CaseMouse
NZXT Switch 810 Razer Mamba 
  hide details  
Reply
post #10 of 10
Thread Starter 
Thanks for all the replies. I put stable in quotation marks for a reason people!!!! =)
Kizbot
(18 items)
 
  
MotherboardGraphicsHard DriveHard Drive
Asus X370 Prime Pro Asus Direct CUii 570 GTX Crucial M4 256GB SSD Crucial M4 128GB SSD 
Hard DriveHard DriveHard DriveHard Drive
1TB Samsung HDD 1TB Samsung HDD 320GB Western Digital HDD 2tb Western Digital HDD 
CoolingOSMonitorMonitor
NH-D14 CPU Cooler Windows 10 Pro 64 bit 22" Asus Widescreen 22" LG Widescreen 
KeyboardPowerCaseMouse
Standard Keyboard Corsair HX-1050 Coolermaster HAF-X Razor Gaming Mouse 
AudioAudio
Audio Technica ATH-M50 Headphones BOSE Minilink Bluetooth Speaker 
  hide details  
Reply
Kizbot
(18 items)
 
  
MotherboardGraphicsHard DriveHard Drive
Asus X370 Prime Pro Asus Direct CUii 570 GTX Crucial M4 256GB SSD Crucial M4 128GB SSD 
Hard DriveHard DriveHard DriveHard Drive
1TB Samsung HDD 1TB Samsung HDD 320GB Western Digital HDD 2tb Western Digital HDD 
CoolingOSMonitorMonitor
NH-D14 CPU Cooler Windows 10 Pro 64 bit 22" Asus Widescreen 22" LG Widescreen 
KeyboardPowerCaseMouse
Standard Keyboard Corsair HX-1050 Coolermaster HAF-X Razor Gaming Mouse 
AudioAudio
Audio Technica ATH-M50 Headphones BOSE Minilink Bluetooth Speaker 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › 3930k voltage question (not a what voltage is ok thread)