ASUS P8Z77-V LX Overclock won't/doesn't apply

[SOLVED] ASUS P8Z77-V LX Overclock won't/doesn't apply

Hello all,

As the title states, I enter the BIOS and set the Tuner to "Manual" to allow the adjustment values for Cores: 1 -4. The BCLK is set to: 100.0. My stock total turbo frequency shows: 3800Mhz.


Currently in the system is:

i5-3570K with CoolMaster Hyper 212 EVO
ASUS P8Z77-V LX with BIOS 0801
16GB RAM


Now, when I begin to adjust the cores in increments of one (1), the Total Turbo frequency increases as well beyond the 3800Mhz. As an example, I increase the multiplier to 40 x 100 BCLK, and the Total frequency adjusts to 4000Mhz. I hit Save and Reset, but then the frequency remains at 3.4Ghz. Moreover, I boot to my Mac OSX and enter the "About my Mac" menu only to find that the frequency remains at 3.4Ghz.

On the other hand, if I begin to slowly increase the BCLK by increments of 0.1, without further adjustments of the multiplier, the frequency rating within my BIOS and OSX will show a higher frequency.

Example: Adjusted 102.5 BCLK x 40 Multiplier= 4100Mhz with base frequency changed to ~3.5Ghz

I understand in overclocking environments, adjustments of the BCLK is not recommended. Hence this thread. I performed Prime95 for Mac and Memtest86+ which all continuously pass over 10 hours of testing. With the BCLK adjusted to 107.8 and multiplier at 47, the temps stayed around 39-42 idle and 65-70 at load with a fixed 3.67Ghz frequency in OSX "About my Mac". Approx 5098 Mhz Total in BIOS.


Please excuse my noobness, but if the total frequency is that high, wouldn't that number reflect in my "About my Mac" section? I understand how the Turbo works within the CPU, but I constantly read threads of people saying "Im running 4.5GHz" "Running 4.3GHz" etc etc.


What numbers are being referred to? The turbo frequency? or the base frequency??


Any advisement would be fantastic as this has been troubling me for quite some time.


Thanks in advance

======Resolution======

Finally! After much thorough research and the help of a few users that sparked more investigation, my hackintosh system is finally applying the Overclock. Moreover, the multiplier and turbo frequency is being recognized within HWMonitor.app

Turns out that the NullCPUPowermanagement.kext was installed into my system. However, if I simply delete the kext, my system will kernel panic upon reboot. So how do I fix this?

Well, I referenced to this link and followed ZenBR's install method to a T. The big difference was that I originally installed the Hackintosh system with the Unibeast + Bridge Helper 5.0 method. According to ZenBR's method, this was the issue.

Apparently, in my case the Bridgehelper 5.0 prevented the OS from fully recognizing the Overclock. Moreover, the Bridgehelper would keep the NullCPUPowermanagement.kext installed.

My solution was to do a fresh install of Lion 10.7.4 while using Multibeast 4.6.1, but NOT using Bridgehelper. Once the system was fully installed, I have working Graphics, USB 3.0 ports (not sure of speed since I do not have a 3.0 device), Network and Sound. Also, HWMonitor shows my Overclock to 4.1Ghz.

Finally, Geekbench score is hitting 11535 compared to the 9800 it was before. The difference in performance is clear enough for me so I am happy. Thanks to everyone who helped and I hope this helps someone else!

You don't have to change the CPU ratio.
When someone say he's running at 4.2 Ghz, at least with recent processor (it's not true with core 2 duo), they speak about the Turbo Speed.

That's what you have to change.

It won't be reflected in "About this mac", but that doesn't mean it didn't work.
HWmonitor should reflect it thought. You can also use MSRDumper : http://www.tonymacx86.com/lion-desk...peedstep-sandy-bridge-cpus-using-msrdump.html

Oh, and CPU Ratio has to be set in its range, and I think i5 3570K's range is 16-34 (this is what I got with this CPU on a Sabertooth Z77, I don't think you can go above), or the Turbo Mode will be disabled (again, this is how it works on my motherboard, so since you also own an ASUS, it should work the same way).

Have you flashed your BIOS with a modified one ? If so, or I you use a Patched AppleIntelCpuPowerManagement.kext, you'll have to make sure that NullCPUPowerManagement.kext is deleted (you may have it in S/L/E).

There's no way it doesn't work if you follow these instructions.

Nikki51 said:

You don't have to change the CPU ratio.
When someone say he's running at 4.2 Ghz, at least with recent processor (it's not true with core 2 duo), they speak about the Turbo Speed.

That's what you have to change.

It won't be reflected in "About this mac", but that doesn't mean it didn't work.
HWmonitor should reflect it thought. You can also use MSRDumper : http://www.tonymacx86.com/lion-desk...peedstep-sandy-bridge-cpus-using-msrdump.html

Oh, and CPU Ratio has to be set in its range, and I think i5 3570K's range is 16-34 (this is what I got with this CPU on a Sabertooth Z77, I don't think you can go above), or the Turbo Mode will be disabled (again, this is how it works on my motherboard, so since you also own an ASUS, it should work the same way).

Have you flashed your BIOS with a modified one ? If so, or I you use a Patched AppleIntelCpuPowerManagement.kext, you'll have to make sure that NullCPUPowerManagement.kext is deleted (you may have it in S/L/E).

There's no way it doesn't work if you follow these instructions.

Click to expand...

Thank you for the information and thank you for responding. After a week of no replies, i figured no one knew an answer.

Thanks!

You're welcome !
Tell me if you make it work .

did you ever get this working? i'm having similar issues. will try out that hwmonitor thing tonite to see if my OC indeed is working...still a newb to this...thanks!

Another way to get your overclock to work is to disable speedstep in BIOS which is what I've done although for many this won't be ideal. C1E is still enabled which means you won't be running at overclock speeds all the time.

Just FYI there seems to be a cap in About This Mac, I have my 2600k overclocked to 4.50GHz and it only shows as 4.30GHz.

If you want to test if your overclock is working download and run the CPU test in Cinebench. At stock speeds my score was 6.63 with overclock it was 8.70.

Hello,
I think ''About this Mac'' is just cosmetic.
For real frequencies, you have to install Hwmonitor.app with FakeSMC and motherboard plugin.
It will show you the real frequency and the multiplicator.

i have hwmonitor open and it always says multiplier at x34 even tho i sent it for 42. i'm running i5-3570k on the asus p8z77 vpro...so don't know what i'm actually doing wrong.

will disable speedstep and see if that works..

thanks!

3570k and z77 chipset with speedstep activated should be managed natively.

All that i did is run multibeast with, userdsst freedsdt, drivers (video, network), fakeSMC and plugins, evoreboot, and themes.

That made my cpu work natively at 4.5Ghz when needed and most of the time at 1.6Ghz with step at 1.7, 1.8, 2.0....

I think there is something with AppleIntelCpuPowerManagement and/or NullCpuPowerManagement.

Try alternatively to remove one of them.

Also try to find if there's apatched version of your bios.

again thanks for all the suggestions...

turned off speedstep and still doesn't show in hwmonitor. all i get is same stock x34 even tho i've set it to x42 multiplier

i will look into the bios patch and see if thats something but i've kinda gave up on OC for now and just be happy that the system runs...
but anyone with more help is greatly appreciated!

tia!