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3930K & Rampage 4

Associate
Joined
8 Feb 2012
Posts
154
Location
U.K
Hello

I'm having trouble overlclocking my CPU to 5GHZ. What I do is, I load computer in default settings then change the following settings.

AI Overclock Tuner: X.M.P
Turbo Ratio: By all cores
48

CPU Vcore: 1.440

Speedstep- off

Rampage tweak- mode 2

Xtreme tweaking- on


Everything else is left as it was, Once I save and exit pc try's to boot but just turns off:confused:.

Sorry I am a newbie to this, if any has the same mobo/CPU, and they don't mind, could they share there setting
 
I have multiplier of 47 (x100 BCLK) with 1.375v LLC in high and most other things in auto, part from ram v which is fixed at 1.5, and timings

When I tried to get to 48 I gave up at 1.4v, I wouldnt run it past there day to day anyway and so left it and played some games! Lol

You could try using a CPU strap of 125 and a lower multi , 40 would give 5.0ghz but I haven't tried so can't give you an idea of volts or performance!
 
You need to set you sights a little lower.
Start with 4.5Ghz and work your way up.
It is not a given that your 3930K will reach 5Ghz, most can only run at that speed in suicide mode.
Stable 24/7 speed is lkely to be in the 4.6 - 4.8 range.
Some C1's cant reach those speeds stable, they get flaky above 4.5
Do you have a new C2 stepping or an older C1 ?

Be carefulll with the vcore.
1.44v set in the BIOS can be considerably higher than that on load.
Some of the LLC settings on that board are very aggressive.
When you are load testing have cpuz open it will show you the vcore being used.

What cooling do you have ?
They kick out a lot of heat.
Heavy loads on AIR will result in scary temps.

Start with you RAM set fairly low, i suggest 1600.
Find the limit of your CPU before upping the RAM speeds.
Keep the RAM volts fairly low.
Manually set it if you have too.
1.575 should be the most you need.
 
Be carefulll with the vcore.
1.44v set in the BIOS can be considerably higher than that on load.
Some of the LLC settings on that board are very aggressive.

yer this is important to know tbh i have mine at 4.8ghz stable atm bios is 1.42 but underload is sometimes goes to 1.472

also using r4e
 
1.4v is Vabsolute with these chips mate with 1.35v being Vmax...
you will ruin your chip if you go above for any period of time.
im a mad overclocker also and would love 5ghz but id rather keep my £800 chip healthy as i have just had a £300 z68 board blow on me by pushing to hard
 
Thanks for the feedback guys, I'm now at 4.6Ghz with temps 55c full load with air cooling (Noctua NH-D14) really good cooler

Some how i doubt that is full load.

I have a 3930k with a D14 and the full load temps using prime95 average around 75 across the cores.
IBT can easily push the hottest cores into the low 80's.
 
mine hits the 70-75 range with IBT (cool room), dreading summer though lol

barely hits 55-60 in games though, havent done any video transcoding recently but its obviously not gonna be any more than with IBT

and it only takes 6 minutes to encode a DVD (my QX6700 used to take 45-60 minutes)
 
Some how i doubt that is full load.

I have a 3930k with a D14 and the full load temps using prime95 average around 75 across the cores.
IBT can easily push the hottest cores into the low 80's.

Hi mate, just used real temp and im hitting the same temps as you, tho it say 55c on the software which comes with the board (Asus Suite) thats where I got my first reading from. Guess that was wrong.
 
I don't really use the AI suite these days.
Coretemp, CPUZ and hwmonitor do for me.

Perhaps the ASUS software is reading the die temp and not the core temps.

Glad you have got it all working.
 
Guys make sure you also cool the VRM's on this board with a fan or watercooling if using high levels of LLC or going above 1.4v. They become very very warm otherwise and can lead to shutdown or throttling.
 
I have multiplier of 47 (x100 BCLK) with 1.375v LLC in high and most other things in auto, part from ram v which is fixed at 1.5, and timings

I have used these settings and it was stable under IBT.

I have since managed to drop to 1.365v and it remains IBT stable.

At 1.360v it failed on the 10th past sadly, but i'm happy with it being stable where it is.

Max temp was on core 4 at 74°c
 
I have used these settings and it was stable under IBT.

I have since managed to drop to 1.365v and it remains IBT stable.

At 1.360v it failed on the 10th past sadly, but i'm happy with it being stable where it is.

Max temp was on core 4 at 74°c

I can pass IBT at similar voltages to yourself.
However i found that it wasn't stable running P95 for more than a few minutes,
I needed quite a bit more vcore to remain stable for long periods,
This of course upped the thermal output quite a bit.

I have given up on the big clocks on the 3930k and settled on 4.5Ghz 125x36
This allows me to use the PC for number crunching without risk of instability or thermal throttling.
 
If its IBT and not Prime stable it tends to be a memory setting thats causing the instability. Usually a timing or VTT, VCCSA voltage.
 
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