Overclock.net › Forums › Intel › Intel CPUs › i7 Extreme 3970x build
New Posts  All Forums:Forum Nav:

i7 Extreme 3970x build - Page 7

post #61 of 66
Yeah agreed that you might well be happiest with the "auto overclock" provided by most high-end motherboards these days. It won't get you to the absolute 100% potential of your chip, but it will get you 80% of the way there with very little effort.

The basic tools you'll need will be prime95 for stability testing, coretemp to see your CPU temperatures, and cpu-z to see how much voltage the CPU is getting.

You run prime95 with "round off checking" ticked in the options, you should probably run both "small fft" and "blend" modes - small fft just tests the CPU, blend checks the RAM for stability as well.

Basically prime95 does a ton of math on the CPU and is able to report if any calculations have produced an erroneous result, in which case your overclock is not stable. So what you want to do is run the auto overclock thing, let it get you to 4.2GHz or whatever, then run prime95 and simultaneously run CPU-Z to see if the motherboard has done something silly like give the CPU too much voltage (given your aversion to overclocking, I'd say about 1.35v should be your maximum, most people round here would go further if necessary). You also run coretemp and make sure your hottest core is no higher than about 80 to 85c (100c is the safe maximum, so you want to allow some headroom for hot days etc.).

To be satisfied that the overclock is completely stable and won't cause any problems (ie. BSODs or application crashes) you want to run prime95 in blend mode for 18 hours or more without an error - it's necessary to go that long because it takes 18 hours to get through all the tests it can do (all the different FFT lengths), although if you have an unstable overclock it will often give an error much quicker than that.

If prime95 gives an error, or the voltage is too high, or the temperatures are too high, then you'll need to change the settings manually. It's quite likely that the auto overclock will give you something sensible, and that might be all you need to do, but if necessary you can set your voltage and clock speed manually to get the temperatures under control and ensure the voltage is below your personal maximum comfort level.

Post back in the thread as you go, and I'm sure people here will help you out with the process. It's a bit mystifying the first time, but if you approach it systematically it's really no big deal, and for a relatively mild overclock like you want to achieve, it shouldn't take much work.
Project Obselete
(20 items)
 
  
CPUMotherboardGraphicsGraphics
i7 2600k @ 4.6GHz Asus Maximus IV Extreme R9 290 R9 290 
RAMHard DriveHard DriveHard Drive
16GB G-Skill DDR3 1600MHz 256GB Samsung 830 SSD 512GB Samsung 830 SSD 256 GB Samsung PB22-J SSD 
Hard DriveHard DriveOptical DriveCooling
1TB Samsung Spinpoint F3 2TB Samsung Spinpoint F4 Asus BW-12B1LT Custom loop with external radbox 
OSMonitorMonitorMonitor
Windows 7 Ultimate x64 Crossover 27Q LED-P Crossover 27Q LED-P Optoma GT720 
PowerCaseAudioOther
Corsair AX1200i Coolermaster HAF X Asus Xonar D2X Highpoint RocketRAID 2680 
  hide details  
Reply
Project Obselete
(20 items)
 
  
CPUMotherboardGraphicsGraphics
i7 2600k @ 4.6GHz Asus Maximus IV Extreme R9 290 R9 290 
RAMHard DriveHard DriveHard Drive
16GB G-Skill DDR3 1600MHz 256GB Samsung 830 SSD 512GB Samsung 830 SSD 256 GB Samsung PB22-J SSD 
Hard DriveHard DriveOptical DriveCooling
1TB Samsung Spinpoint F3 2TB Samsung Spinpoint F4 Asus BW-12B1LT Custom loop with external radbox 
OSMonitorMonitorMonitor
Windows 7 Ultimate x64 Crossover 27Q LED-P Crossover 27Q LED-P Optoma GT720 
PowerCaseAudioOther
Corsair AX1200i Coolermaster HAF X Asus Xonar D2X Highpoint RocketRAID 2680 
  hide details  
Reply

Gear mentioned in this thread:

post #62 of 66
Quote:
You also run coretemp and make sure your hottest core is no higher than about 80 to 85c (100c is the safe maximum, so you want to allow some headroom for hot days etc.).

No, for the i7-3930K, try and keep it under 70 °C, up to 75 °C is doable. 91 °C is the throttle down temp for the chip. (These are of course the core temps, not to be confused with the CPU temp.)

For 4.2GHz clock, you probably won't even need to raise the VCore, but if you want to just to make sure of stability, 1.30 (measured) should be fine. Up to 1.4V is generally considered safe, but of course the lower you can keep it and keep the CPU stable while loaded, the better for the chip and the lower the temps will be. I get a stable 4.6GHz with a VCore of 1.35 (measured).

If you're going with the ASUS board, just use the AI Suit software that comes with it. Go into Auto Tuning, Manual Mode, CPU Ratio, then hold your mouse above the blue bars and drag the line there up to 4.2GHz. That should be all you need to do to get 4.2GHz. smile.gif

You can save the profile, and then just reload it when the computer is done booting up and loading into Windows. This way if you crash the computer you'll know it will at least restart with the default settings.

If you need to raise the VCore for a higher stable OC, or to make sure it's stable at 4.2GHz, click on Monitor, then Sensor to see what the measured VCore is. To raise it, just click on the right arrow of the CPU VCORE Voltage.

You have to apply the settings before any changes are actually made. So for example, you won't see the measured VCore raise while raising the VCore setting.

Good luck.
Edited by Wrend - 2/20/13 at 4:58pm
X79
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel i7-3930K @ 4.2GHz ASUS P9X79 WS EVGA GeForce GTX Titan Black Superclocked EVGA GeForce GTX Titan Black Superclocked 
RAMHard DriveHard DriveHard Drive
Corsair Dominator 64GB Quad Channel DDR3 @ 1600MHz Samsung 840 EVO 1TB SSD SATA III Western Digital 1TB 7200 RPM 64MB Cache SATA III Western Digital My Passport 2TB External HDD US... 
Optical DriveOptical DriveCoolingCooling
Sony Optiarc Internal 12x Blu-ray Burner BD-530... Sony Optiarc Internal 12x Blu-ray Burner BD-530... Corsair H110 5 NOCTUA NF-A14 industrialPPC-3000 PWM Fans 
OSOSMonitorKeyboard
Windows 7 Professional SP1 64bit Debian GNU/Linux (virtual machine on a RAM Drive) Sony Bravia 46" 1920×1080 Logitech K360 
PowerCaseMouse
Corsair AX1200 (1200W, 100.4A @ 12V) Corsair Obsidian 750D Logitech M235 2nd Gen 
  hide details  
Reply
X79
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel i7-3930K @ 4.2GHz ASUS P9X79 WS EVGA GeForce GTX Titan Black Superclocked EVGA GeForce GTX Titan Black Superclocked 
RAMHard DriveHard DriveHard Drive
Corsair Dominator 64GB Quad Channel DDR3 @ 1600MHz Samsung 840 EVO 1TB SSD SATA III Western Digital 1TB 7200 RPM 64MB Cache SATA III Western Digital My Passport 2TB External HDD US... 
Optical DriveOptical DriveCoolingCooling
Sony Optiarc Internal 12x Blu-ray Burner BD-530... Sony Optiarc Internal 12x Blu-ray Burner BD-530... Corsair H110 5 NOCTUA NF-A14 industrialPPC-3000 PWM Fans 
OSOSMonitorKeyboard
Windows 7 Professional SP1 64bit Debian GNU/Linux (virtual machine on a RAM Drive) Sony Bravia 46" 1920×1080 Logitech K360 
PowerCaseMouse
Corsair AX1200 (1200W, 100.4A @ 12V) Corsair Obsidian 750D Logitech M235 2nd Gen 
  hide details  
Reply
post #63 of 66
Quote:
Originally Posted by Tomaszewski View Post

Wow, great input thanks. Is there a guide for over clocking with this motherboard? Is there a better board for over clocking?

The Sabertooth X79 is an awesome overclocker, solid build too, if you keep this computer around as much as your last one, having a 5 year warranty is definetely a plus.
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 #64 of 66
Quote:
Originally Posted by DMHernandez View Post

The Sabertooth X79 is an awesome overclocker, solid build too, if you keep this computer around as much as your last one, having a 5 year warranty is definetely a plus.

I agree. The higher end ASUS X79 boards are great. I'm very pleased with my P9X79 WS.
X79
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel i7-3930K @ 4.2GHz ASUS P9X79 WS EVGA GeForce GTX Titan Black Superclocked EVGA GeForce GTX Titan Black Superclocked 
RAMHard DriveHard DriveHard Drive
Corsair Dominator 64GB Quad Channel DDR3 @ 1600MHz Samsung 840 EVO 1TB SSD SATA III Western Digital 1TB 7200 RPM 64MB Cache SATA III Western Digital My Passport 2TB External HDD US... 
Optical DriveOptical DriveCoolingCooling
Sony Optiarc Internal 12x Blu-ray Burner BD-530... Sony Optiarc Internal 12x Blu-ray Burner BD-530... Corsair H110 5 NOCTUA NF-A14 industrialPPC-3000 PWM Fans 
OSOSMonitorKeyboard
Windows 7 Professional SP1 64bit Debian GNU/Linux (virtual machine on a RAM Drive) Sony Bravia 46" 1920×1080 Logitech K360 
PowerCaseMouse
Corsair AX1200 (1200W, 100.4A @ 12V) Corsair Obsidian 750D Logitech M235 2nd Gen 
  hide details  
Reply
X79
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel i7-3930K @ 4.2GHz ASUS P9X79 WS EVGA GeForce GTX Titan Black Superclocked EVGA GeForce GTX Titan Black Superclocked 
RAMHard DriveHard DriveHard Drive
Corsair Dominator 64GB Quad Channel DDR3 @ 1600MHz Samsung 840 EVO 1TB SSD SATA III Western Digital 1TB 7200 RPM 64MB Cache SATA III Western Digital My Passport 2TB External HDD US... 
Optical DriveOptical DriveCoolingCooling
Sony Optiarc Internal 12x Blu-ray Burner BD-530... Sony Optiarc Internal 12x Blu-ray Burner BD-530... Corsair H110 5 NOCTUA NF-A14 industrialPPC-3000 PWM Fans 
OSOSMonitorKeyboard
Windows 7 Professional SP1 64bit Debian GNU/Linux (virtual machine on a RAM Drive) Sony Bravia 46" 1920×1080 Logitech K360 
PowerCaseMouse
Corsair AX1200 (1200W, 100.4A @ 12V) Corsair Obsidian 750D Logitech M235 2nd Gen 
  hide details  
Reply
post #65 of 66
Thread Starter 
Ok thanks all! I will give it a shot.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E6600 ASUS P5B-E HIS Radeon XT1950 PRO 4 Gb OCZ 800MHz 
Hard DriveMonitorPower
2 WD 160Gb Samsung 22" no idea 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Duo E6600 ASUS P5B-E HIS Radeon XT1950 PRO 4 Gb OCZ 800MHz 
Hard DriveMonitorPower
2 WD 160Gb Samsung 22" no idea 
  hide details  
Reply
post #66 of 66
Sure, and just in case you needed any more convincing to go with the 3930K:
Quote:
As we could only overclock the i7-3960X from 3.3GHz to 4.7GHz we were expecting that the 3.2GHz i7-3930K would only overclock to around 4.5GHz. After all, part of the sales message of Extreme Edition processors is that they are cherry-picked CPUs that should overclock better than standard processors.

However, the i7-3930K has identical overclocking properties as the Extreme Edition CPU. Using a CPU voltage of 1.4V, a CPU multiplier of 38x, a Base Clock of 123.75MHz, a CPU strap of 125MHz and a memory speed of 1.98GHz, we could also run the i7-3930K stably at 4.7GHz.

This overclock provided a substantial boost in performance in every test, allowing the i7-3930K to extend its lead over every other CPU bar the i7-3960X Extreme Edition. This is because the latter has 15MB, as opposed to 12MB, of Level 3 cache. However, when both Sandy Bridge E processors were overclocked, there wasn't much difference in performance. In our Media Benchmarks, for example, the i7-3930K was less than 0.2 per cent slower than the i7-3960X.

-http://www.bit-tech.net/hardware/cpus/2011/11/14/intel-sandy-bridge-e-review/12

...

Anyway, let us know how it goes. smile.gif
Edited by Wrend - 2/22/13 at 9:03am
X79
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel i7-3930K @ 4.2GHz ASUS P9X79 WS EVGA GeForce GTX Titan Black Superclocked EVGA GeForce GTX Titan Black Superclocked 
RAMHard DriveHard DriveHard Drive
Corsair Dominator 64GB Quad Channel DDR3 @ 1600MHz Samsung 840 EVO 1TB SSD SATA III Western Digital 1TB 7200 RPM 64MB Cache SATA III Western Digital My Passport 2TB External HDD US... 
Optical DriveOptical DriveCoolingCooling
Sony Optiarc Internal 12x Blu-ray Burner BD-530... Sony Optiarc Internal 12x Blu-ray Burner BD-530... Corsair H110 5 NOCTUA NF-A14 industrialPPC-3000 PWM Fans 
OSOSMonitorKeyboard
Windows 7 Professional SP1 64bit Debian GNU/Linux (virtual machine on a RAM Drive) Sony Bravia 46" 1920×1080 Logitech K360 
PowerCaseMouse
Corsair AX1200 (1200W, 100.4A @ 12V) Corsair Obsidian 750D Logitech M235 2nd Gen 
  hide details  
Reply
X79
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel i7-3930K @ 4.2GHz ASUS P9X79 WS EVGA GeForce GTX Titan Black Superclocked EVGA GeForce GTX Titan Black Superclocked 
RAMHard DriveHard DriveHard Drive
Corsair Dominator 64GB Quad Channel DDR3 @ 1600MHz Samsung 840 EVO 1TB SSD SATA III Western Digital 1TB 7200 RPM 64MB Cache SATA III Western Digital My Passport 2TB External HDD US... 
Optical DriveOptical DriveCoolingCooling
Sony Optiarc Internal 12x Blu-ray Burner BD-530... Sony Optiarc Internal 12x Blu-ray Burner BD-530... Corsair H110 5 NOCTUA NF-A14 industrialPPC-3000 PWM Fans 
OSOSMonitorKeyboard
Windows 7 Professional SP1 64bit Debian GNU/Linux (virtual machine on a RAM Drive) Sony Bravia 46" 1920×1080 Logitech K360 
PowerCaseMouse
Corsair AX1200 (1200W, 100.4A @ 12V) Corsair Obsidian 750D Logitech M235 2nd Gen 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs

Gear mentioned in this thread:

Overclock.net › Forums › Intel › Intel CPUs › i7 Extreme 3970x build