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i7 3930K - How to overclock it? - Page 3

post #21 of 31
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Okay, so it seems to be stable with 1.25 VCore and 4.00Ghz, no errors in the whole OCCT Test (1 Hour and 10 minutes, I'll do a longer one later) , max. Temperature of 2 cores was 64°C, should I still lower the VCore or is it okay with 1.25? Like I said, I got a bluescreen with 1.2 after 3 minutes of doing the OCCT Test
    
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post #22 of 31
them temps are fine, try to keep the under 70/75c.
when you stress test for longer, do a custom prime 95 blend test with 90% of your available memory, so i have 8GB of ram and i use 6500mb for the stress test for example, im guessing that you'd be looking at around 14GB.
i recommend doing it for as long as you can, start it a few hours before you go to sleep to keep an eye on it for a bit then let it run over night.
post #23 of 31
With similar configuration (same CPU on ASUS P9X79) I found that this is the best (1.25V). Out of curiosity, about power supply, I found that 650W is not enough. There was no way to overclock memory. When I change for a 700W PSU everything was ok. I have on this computer graphic adapter N570GTX Twin Frozr III Power Edition/OC and 16GB DDR3 2133-> Just an example how wrong PSU can stop you in OC. Average PSU around 500/600W total power output have only around 130W dedicated to 12V/3V for motherboard. When you raise up clock on I7 3930k his power consumption is around 200W+. If you go for higher clock >4.5 GHz this power consumption rises up to 500W and more.
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post #24 of 31
Hi, Im trying to Oc my 3930k on a x79 ud3 motherboard, went in the gigabyte bios, changed the oc core numbers from 38 to 44, but nothing, in the cpu z by the core speed if I compress a video with virtualdub (uses all cores at 100%) I see the speed is still 3199mhz.

I then enabled the in OS changeable settings. in windows there is a tool from gigabyte named smart6, where I can set the turbo mode, do it to 4.4 and still have to restart (while I shouldn't have to, as I enabled the possibility to change the settings in OS), and I restart, and there isn't any turbo ratio or something.

What I am doing wrong?

It is like it doesn't mantain the settings i set.

I never overclocked a cpu, my i2600 k went on turbo mode by itself, and never felt bottlenecked by the cpu (unless using compression programs).



Have you got some suggestion?

Isn't there a tool to overclock cpu, like precisionx and msi afterburner do it on the OS???
post #25 of 31
Same thing here. Then I downloaded Core Temp and watched the oc'ed freqeuncy there which was correct. (4.3GHz using only the multiplier and leaving everything else on auto). running 24/7 for 2 months so far with no issues.
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post #26 of 31
Quote:
Originally Posted by qiplayer View Post

Hi, Im trying to Oc my 3930k on a x79 ud3 motherboard, went in the gigabyte bios, changed the oc core numbers from 38 to 44, but nothing, in the cpu z by the core speed if I compress a video with virtualdub (uses all cores at 100%) I see the speed is still 3199mhz.
I then enabled the in OS changeable settings. in windows there is a tool from gigabyte named smart6, where I can set the turbo mode, do it to 4.4 and still have to restart (while I shouldn't have to, as I enabled the possibility to change the settings in OS), and I restart, and there isn't any turbo ratio or something.
What I am doing wrong?
It is like it doesn't mantain the settings i set.
I never overclocked a cpu, my i2600 k went on turbo mode by itself, and never felt bottlenecked by the cpu (unless using compression programs).
Have you got some suggestion?
Isn't there a tool to overclock cpu, like precisionx and msi afterburner do it on the OS???

What I'd do, is this:

1) Log into Windows and make sure Core Temp starts up together with Windows. That way you've got an accurate measure of how hot the CPU gets during startup, a fairly heavy duty on the CPU.
2) Restart your PC, go into the UEFI and reset your settings to the Safe Default Settings.
3) Press F10 to save those settings and restart the PC.
4) Log into Windows, and see what the temperatures of your CPU are like: A) during startup and B) a few minutes after, on idle.
5) Go back to the UEFI. Set the Multiplier manually to 44 on each core. Leave every other setting on auto.
6) Press F10 to save those settings and restart the PC.
7) Go into Windows and see if you get any BSOD or freeze during the startup and logon procedure. Start Intel BurnIn Test and do a standard level stresstest, just to see if your CPU can handle a 100% load without any BSOD or freeze. It should, since every voltage setting is put on Auto.
8) Now restart your PC again, but this time, set a Manual VCore of 1.3V. Leave every other setting the way it is.
9) Press F10 to save the settings and restart your PC.
10) Log back into Windows and do another Intel BurnIn Test stresstest to see if your CPU can handle this amount of voltage. If it doesn't, increase VCore with 0.05V. If that still, doesn't help, increase it again by 0.05V until it works. If it does work (read: if during either startup or stresstesting you don't get a BSOD or a freeze), however, restart the PC and lower the VCore by 0.05V, press F10 to save those settings and restart the PC again.
11) Keep lowering the VCore 0.05V at a time until you get a BSOD during either startup or stresstesting. When that happens, increase the VCore again by 0.05V and you'll be safe again.
12) Job Done. You now have the OC you desired at the lowest possible voltage and thereby also the lowest possible amount of heat. smile.gif
 
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post #27 of 31
I'd read this.

I have an identical setup as you but i'm using medium LLC and a -0.070 vcore offset @ 4.5ghz
post #28 of 31
Also have very similar setup

3930k @ 4.4Ghz Vcore - 1.240. Very stable temps at this setting 25 degrees idle 54 degrees load with the hottest core hitting around 57 degrees with a H80 @ Medium
post #29 of 31
EDIT : Nevermind that, already answered.
post #30 of 31
Hi, I know I'm bumping super hard right now but I figured it was better to bump an old thread than create a new one, so here goes

I'm trying to overclock my i7 3930k to 4.4 Ghz, I had to put the vcore to 1.35, 1.30 made me blue screen within seconds. Is it normal to require that much voltage for 4.4 Ghz? Seeing earlier results of other people is making me wonder what could be wrong with what I'm doing. I ran a quick 10 minutes test with OCCT and the highest core temp was 73C. Anything I can do to reduce the temp? I'm a big newbie when it comes to overclocking so any help would be appreciated.

Some other info :

Sabertooth x79 motherboard
Corsair H100 water cooling
Corsair Vengeance Ram (CMZ8GX3M2A1600C9B)
Corsair AX 1200 Pro Series Gold
Thermaltake Level 10 GT Case

Idle core temp is around 40 degrees. Thanks in advance!
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