Overclock.net › Forums › Intel › Intel CPUs › Overclocking i7-4930k Help
New Posts  All Forums:Forum Nav:

Overclocking i7-4930k Help - Page 89

post #881 of 1417
Quote:
Originally Posted by jasjeet View Post

Offset or fixed vcore?

Im using fixed, as i Have not had any luck woth offset. Going By kingpins oc guide , managed to drop down to 1.36v stressing Now
i7 930 rig
(25 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7 930 141-BL-E757 NVIDIA GeForce GTX 660 FTW signature 2 NVIDIA GeForce GTX 660 FTW Signature 2 
GraphicsRAMHard DriveHard Drive
Gtx 560 sc  Corsair Dominator gt  intel 520 series seagate 
Hard DriveOptical DriveCoolingCooling
intel 520 series sony dvd burner Xspc dual bayer  Xspc rx360 
CoolingCoolingCoolingCooling
swiftech mcp65-d corsair sp120 xspc raystorm xspc 720 dual bay res 
OSMonitorMonitorKeyboard
Windows 7 Ultimate 64-bit (6.1, Build 7601) Servic LG L227wtg  hf255  razer lycosa 
PowerCaseMouseMouse Pad
XFX 1250 pro black Custom lian li pcg75 razer deathadder gel 
Audio
xfi recon fatality pro 
  hide details  
Reply
i7 930 rig
(25 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7 930 141-BL-E757 NVIDIA GeForce GTX 660 FTW signature 2 NVIDIA GeForce GTX 660 FTW Signature 2 
GraphicsRAMHard DriveHard Drive
Gtx 560 sc  Corsair Dominator gt  intel 520 series seagate 
Hard DriveOptical DriveCoolingCooling
intel 520 series sony dvd burner Xspc dual bayer  Xspc rx360 
CoolingCoolingCoolingCooling
swiftech mcp65-d corsair sp120 xspc raystorm xspc 720 dual bay res 
OSMonitorMonitorKeyboard
Windows 7 Ultimate 64-bit (6.1, Build 7601) Servic LG L227wtg  hf255  razer lycosa 
PowerCaseMouseMouse Pad
XFX 1250 pro black Custom lian li pcg75 razer deathadder gel 
Audio
xfi recon fatality pro 
  hide details  
Reply
post #882 of 1417
Update 4930k ocing

Using Bclk 126.5 x 36 = 4554 mHz

Men XMP 2000+ 9,11,11,31quad channel

Vcore = 1.395. Other then that will be over 1.4 vc
post #883 of 1417
Just took my 24/7 4.7 overclock and boosted the ram to 2400mhz and achieved my highest numbers yet. thumb.gif





going to try my 4.8 clock next
Edited by danycyo - 5/15/14 at 12:16am
post #884 of 1417
I'm still an Oc'ing noobie so I'm curious, how does one determine/conclude a system as being "24/7" stable? What software does one use for testing? How long?

I've been running my system, P9X79 Pro/4930K @ 4.6GHz with ~1.408-1.416v and the temps never over 80C and it's great, especially x264 video encoding, which is the main reason I upgraded from a quad-core.

Please note, I use offset voltage not a manually fixed setting.
post #885 of 1417
I prefer the more subtle voltage. I run mine a 0.040+ offset now @ 4.5 1.280v with medium LLC.
post #886 of 1417
Quote:
Originally Posted by ziggy1971 View Post

I'm still an Oc'ing noobie so I'm curious, how does one determine/conclude a system as being "24/7" stable? What software does one use for testing? How long?

I've been running my system, P9X79 Pro/4930K @ 4.6GHz with ~1.408-1.416v and the temps never over 80C and it's great, especially x264 video encoding, which is the main reason I upgraded from a quad-core.

Please note, I use offset voltage not a manually fixed setting.

I find myself using a blend of programs to determine full stability. Make sure you monitor your temps/voltages when running these tests.

I personally use Intel Burn test and run about 5 runs on standard just to get an initial starting point of stability. If it blue screens on you then you go back to the bios and make adjustments voltages/clocks etc. If it passes then run it on very high for about 3 runs. Some people run this program 20x runs but its unnecessary because this program puts 100% stress on the cpu. No need for extra heat to fry your chip.

I then find myself using Prime 95 to catch instabilities that Intel Burn test may have missed. I will usually run that for about 3-5 hours to ensure I am perfectly stable but you can run it over night if you'd like.

I also like to run benchmarks and stress tests just to see where I stand with my clocks so I will run programs like 3dmark and Cinebench and see what kind of numbers I achieve to make sure my scores are around where they should be. If it crashes on those your def not stable.

Last but not least is the fun part. I play games that will really stress my system to the max. Crysis 3 is a great example of a game to test your PC with but their are many others. If you can run the campaign and play it fine for a few hours after passing all the above tests then I would consider your system very stable if not 24/7 perfectly stable.

This is the method I use, some people may vary. Blue screens are just your PC's way of telling you to make adjustments. I am on windows 8.1 but BSOD error code lists are listed online and on OC.net if you are not sure why your pc locked up. Check those out to. Goodluck and enjoy!
Quote:
Originally Posted by Silent Scone View Post

I prefer the more subtle voltage. I run mine a 0.040+ offset now @ 4.5 1.280v with medium LLC.

To each their own. Intel rates their chips to 1.4v being fully safe up to spec. 24/7 with no worries and even that number is biased and made to be extra safe. With an overclock like 4.7+ you will notice even with an offset your voltages will spike up and down even though temps/voltages will run lower and cooler. Its really a matter of preference. Some chips can't even achieve a 4.7 with decent voltage.

I personally prefer fixed voltages and steady juice flowing to my chip at all times. Voltage fluctuations in my experiences with electronics do more harm then good in my opinion.

Temperature is really what kills chips and excessive voltages for everyday use. I say voltage under 4.5v is still considered safe with proper cooling. If you wanna be 100% safe keep it under 1.4 as per Intel. I average 37c on idle. and max out at 76c on 100% load and that makes me biggrin.gif. I have had my chip for 6+ months and it runs just as good as the day I bought it. I also have a tuning plan also but I doubt I will ever need it.
Edited by danycyo - 5/15/14 at 2:08am
post #887 of 1417
Intel spec only accounts for base frequencies and does not included increased IMC / MB voltages though. Temperature is obviously also a factor. I've run my chip at 4.810 at 1.42v for benching for many hours since ownership and it works just fine as you'd expect, but have seen chips degrade quickly with high VTT. The extra speed isn't really required so I opt for the lower end of the scale. That's along side 16gb of Cl82133 too.
post #888 of 1417
Thanx for the very detailed/informative info on testing system stability, bookmarked this one.

Perhaps you guys could take a look at my current setup and give me your insights as to whether it's possible to push it further. You can review the info at the following link:

http://www.overclock.net/t/1489667/need-advice-on-p9x79-pro-4930k-overclocking

Let me know what you think.
Thanx again for the info. smile.gif
post #889 of 1417
New personal Best at 4.7 thumb.gif For those of you that are using offsets what are your cinebench scores looking like?

post #890 of 1417
Nice one smile.gif

I'm on offset and net 1209 @ 4.5ghz @1.28v 16gb 2133 CL9-10-10-30-CR1-124 1.5v


Think my highest was 1285 @ 4.82Ghz 1.42v 16gb 2133 CL8-9-9-21-CR1 @ 1.68v
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › Overclocking i7-4930k Help