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Windows 7: Overclocking FX 8120 - Can't get past 4.3K

26 Dec 2012   #1
Bungee18

Windows 7 Ultimate x64 SP1
 
 
Overclocking FX 8120 - Can't get past 4.3K

New to overclocking.
I've been following some tutorials I found here, in OC.net and in Oveclockers.
I've been able to take my 8120 to 4.3K, 1.4V (CPUZ) at full load. Very stable with RAM OC'ed to 1866 10,11,10,27.
Temps are nice and low, 49C max (core temp) after 4 hours prime95 blend.
All power saving options are disabled. Turbo is disabled, cool'n'quiet is disbled.
LLC set to ultrahigh, NB LLC high, Phase extreme.
It was trial an error. With this settings I'm stable.

I'm only doing voltage and multiplier so far, since the other settings are kind of cryptic for me at this stage.

Turned RAM to default settings (1600 CL9), and tried increasing multiplier to 22x, doing small increment voltage adjustments. I didn't dare go beyond 1.46V.
Anything beyond 21.5x and I fail prime95 blend within a couple of minutes or get BSOD at boot.

I would like to get to 4.5K stable since I understand it is easy to achieve on an FX 8120.

Any advice would be very much appreciated.

J


My System SpecsSystem Spec
.
26 Dec 2012   #2
Pedroc1999

Windows 7 Ultimate x86
 
 

Have you tried adjusting the fsb (bclk)
My System SpecsSystem Spec
27 Dec 2012   #3
Bungee18

Windows 7 Ultimate x64 SP1
 
 

No, I haven't, but I don't want to do FSB yet since it modifies all clocks together.
I want to be able to do it through multiplier. It seems that doing 22.5x on this processor shouldn't be difficult.
Thanks for your help Pedro.
My System SpecsSystem Spec
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27 Dec 2012   #4
Pedroc1999

Windows 7 Ultimate x86
 
 

Listen... Up the FSB up a bit, it will be the only way to get higher clocks, as long as you dont go mad.

All you ahve to do to get to 4.5 is up the FSB by 10, this will get you 4.515 GHZ. There will be no side effects to raising it to 210 and you could problably get it up to 4.7 by gradually changing in it to 220. If it doesnt boot then just clear the cmos and apply the last settings it booted with.


Raising the fsb a little bit wont hurt, it is the only way to reach higher clocks
My System SpecsSystem Spec
27 Dec 2012   #5
Solarstarshines

Windows 10 Home Premium 64bit sp1
 
 

My 4.5 overclock on the 8120 these are my results from Threads me and others made

http://www.sevenforums.com/overclock...king-cpus.html


Also some boards limit overclock
My System SpecsSystem Spec
27 Dec 2012   #6
Pedroc1999

Windows 7 Ultimate x86
 
 

Do you agree that you need to up the fsb to reach that oc?
My System SpecsSystem Spec
27 Dec 2012   #7
Solarstarshines

Windows 10 Home Premium 64bit sp1
 
 

Quote   Quote: Originally Posted by pedroc1999 View Post
Do you agree that you need to up the fsb to reach that oc?
yup these chips love FSB
My System SpecsSystem Spec
27 Dec 2012   #8
Pedroc1999

Windows 7 Ultimate x86
 
 

The world record uses 265+ if im correct.
My System SpecsSystem Spec
28 Dec 2012   #9
Bungee18

Windows 7 Ultimate x64 SP1
 
 

Did FSB. Didn't work. Prime95 blend failed within the minute
Multiplier 21.5X, FSB 205.
Upped voltage to 1.425V, memory set to default values. Anything else I should be doing?
Thanks for your help.
My System SpecsSystem Spec
28 Dec 2012   #10
Pedroc1999

Windows 7 Ultimate x86
 
 

Try to lower multiplier and increase fsb
My System SpecsSystem Spec
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