Database Develop

Tegra OC/UV Voltage

Hello, I'm tried, with the OC and UV of my terminal, I managed to get these results:
- 1200MHz 1025mV
- 1000MHz 925mV
- 900MHz 875mV
- 750MHz 800mV
- 650MHz 775mV
- 500MHz 725mV
- 300Mhz 675mV
My terminal is stable, tested after 500 sec of stress cpu, but also comes to 63° in the test, what is the maximum temperature stability for Tegra?
What do you think? what comes to your terminal?
Default Voltage and Clock:
- 1000MHz 1000mV
- 900MHz 950mV
- 750MHz 875mV
- 650MHz 850mV
- 500MHz 800mV
- 300Mhz 750mV
PS: I have already started a topic in general optimus 2x forum, but I think here is on the proper

Hell_97 said:
Hello, I'm tried, with the OC and UV of my terminal, I managed to get these results:
- 1200MHz 1025mV
- 1000MHz 925mV
- 900MHz 875mV
- 750MHz 800mV
- 650MHz 775mV
- 500MHz 725mV
- 300Mhz 675mV
My terminal is stable, tested after 500 sec of stress cpu, but also comes to 63° in the test, what is the maximum temperature stability for Tegra?
What do you think? what comes to your terminal?
Default Voltage and Clock:
- 1000MHz 1000mV
- 900MHz 950mV
- 750MHz 875mV
- 650MHz 850mV
- 500MHz 800mV
- 300Mhz 750mV
PS: I have already started a topic in general optimus 2x forum, but I think here is on the proper
Click to expand...
Click to collapse
I read somewhere the min. voltage is something like 750, so your uv at the low range has no effect.

Hi!
This is my stable config:
- 1200MHz 1050mV
- 1000MHz 975mV
- 900MHz 900mV
- 750MHz 800mV
- 650MHz 700mV
- 500MHz 600mV
- 300Mhz 500mV
kernel eternity 1.4

The chip in our beloved LG O2X cannot output voltages lower than 770 mV.. So assigning any UV-values below 770 mV is useless.
I myself am using Benee's VorkKernel:
1200 MHz - 1075 mV
1100 MHz - 1025 mV
1000 MHz - 925 mV
800 MHz - 825 mV
500 MHz - 775 mV
300 MHz - 770 mV

xgeneralex said:
Hi!
This is my stable config:
- 1200MHz 1050mV
- 1000MHz 975mV
- 900MHz 900mV
- 750MHz 800mV
- 650MHz 700mV
- 500MHz 600mV
- 300Mhz 500mV
kernel eternity 1.4
Click to expand...
Click to collapse
oh yeah!, you have inspired me, here's my new configuration:
- 1200MHz 1025mV
- 1000MHz 925mV
- 900MHz 875mV
- 750MHz 800mV
- 650MHz 700mV
- 500MHz 600mV
- 300Mhz 500mV
Stable after 1000 sec of stress test

wgspoelstra said:
The chip in our beloved LG O2X cannot output voltages lower than 770 mV.. So assigning any UV-values below 770 mV is useless.
I myself am using Benee's VorkKernel:
1200 MHz - 1075 mV
1100 MHz - 1025 mV
1000 MHz - 925 mV
800 MHz - 825 mV
500 MHz - 775 mV
300 MHz - 770 mV
Click to expand...
Click to collapse
oh, really?

lol
1400Mhz - 1100mv
1300MHz - 1050mv
1200Mhz - 1000mv
1100Mhz - 975mv
1000Mhz - 925mv
800Mhz - 825mv
500Mhz - 725mv
300Mhz - 675mv
stable

matinha said:
lol
1400mhz - 1100mv
1300mhz - 1050mv
1200mhz - 1000mv
1100mhz - 975mv
1000mhz - 925mv
800mhz - 825mv
500mhz - 725mv
300mhz - 675mv
stable:d
Click to expand...
Click to collapse
Great! you are lucky!

Hell_97 said:
Great! you are lucky!
Click to expand...
Click to collapse
1400Mhz stress test gives me 49º

matinha said:
1400Mhz stress test gives me 49º
Click to expand...
Click to collapse
Sorry but can you proof it?! Nearly all of us got more than 60°C with 1300MHz so I can't really believe it.

Hitchi said:
Sorry but can you proof it?! Nearly all of us got more than 60°C with 1300MHz so I can't really believe it.
Click to expand...
Click to collapse
you will believe
here is a video with my temps with 1400mhz : http://www.youtube.com/watch?v=H5zOYXK3CoE
the cpu temp started at 47ºC

Running max 1.2ghz on 1050Mv
Its stable and cpu temp is between 40 and 50 degrees.
Sent from my LG-P990 using XDA App

K.D.M. said:
Running max 1.2ghz on 1050Mv
Its stable and cpu temp is between 40 and 50 degrees.
Sent from my LG-P990 using XDA App
Click to expand...
Click to collapse
try 1.2ghz at 1000mv

matinha said:
try 1.2ghz at 1000mv
Click to expand...
Click to collapse
Ive used your readings now. Lets see how it does
Sent from my LG-P990 using XDA App

Hell_97 said:
oh, really?
Click to expand...
Click to collapse
Yah, really. Source: http://www.android-hilfe.de/1328175-post4.html
Sent from my Optimus 2X using XDA Premium App

matinha said:
you will believe
here is a video with my temps with 1400mhz : http://www.youtube.com/watch?v=H5zOYXK3CoE
the cpu temp started at 47ºC
Click to expand...
Click to collapse
Weird 1.4ghz 80secs stressing max 53degrees
Pretty good
Sent from my LG-P990 using XDA App

matinha said:
try 1.2ghz at 1000mv
Click to expand...
Click to collapse
My phone crashes at this voltage, the maximum for me is 1200MHz 1025mV.

Hell_97 said:
My phone crashes at this voltage, the maximum for me is 1200MHz 1025mV.
Click to expand...
Click to collapse
Same here but 1100Mv @ 1.4ghz works good. Quadrent score of 4205
Sent from my LG-P990 using XDA App

55° max at 1400mhz 1100mv

Hi,
I'm not an Optimus 2x owner, but a Motorola Xoom owner.
Luckily I'm one of them with a tegra 2 running stable on 1700mhz.
Now I'm playing around to get a lower voltage profile. My first try was interesting successful running [email protected]
so here I'll post my voltage table while trying around(so do not try it):
below 760 mhz removed, because of the same voltage
Freq @ Voltage @ Temp @ MFLOPS
0760mhz @ 0800mv @ 35.2°C @ 047.100 = stress stable (1.5 min)
0816mhz @ 0825mv @ 35.2°C @ 053.342 = stress stable (1.5 min)
0912mhz @ 0825mv @ 35.0°C @ 057.743 = stress stable (1.5 min)
1000mhz @ 0850mv @ 36.1°C @ 065.375 = stress stable (1.5 min)
1200mhz @ 0975mv @ 37.1°C @ 075.500 = stress stable (1.5 min)
1400mhz @ 1075mv @ 37.1°C @ 089.006 = stress stable (1.5 min)
1504mhz @ 1125mv @ 37.0°C @ 093.912 = stress stable (10 min)
1600mhz @ 1225mv @ 37.6°C @ 098.062 = stress stable (10 min)
1700mhz @ 1275mv @ 00.0°C @ 102.750 = stress unstable
legend:
death = caused a reboot
linpack stable = linpack gets max 1 inconsistent in 5 runs
stress (un)stable = stress tested + temp check
For the stresstests I'm using StabilityTest.
it is interesting, that linpack gets the best results when the cpu is running at the lower voltage limit.
but the most stable settings are the default settings, there also 1700mhz are working in the stress test stable
Regards
Ralph

Post your cpu/gpu/ram voltages!

Hello guys!
I think that was a good idea to make a thread of our voltages.
This will help people who want to change CPU, GPU and RAM voltages.
(RAM & GPU only Werewolf kernel)
You know, this tipe of settings is avaiable only on costum kernel like kolk's, lauferstepperwolf's or iodak's.
So it's time to share your settings on trickster mod or tegra overclock!!! :thumbup:

CPU: -65 mV
all other Voltages: no effect
(CPU-variant 0, WerewolfJB kernel)

Frequency (MHz) - Voltage (mV)
1600 - 1150
1540 - 1112
1500 - 1100
1400 - 1050
1360 - 1025
1330 - 1012
1300 - 1000
1250 - 950
1200 - 937
1100 - 882
1040 - 862
990 - 850
780 - 812
650 - 775
480 - 812
CPU Variant: 1
How the hell do you undervolt GPU and RAM?

someth1ng said:
Frequency (MHz) - Voltage (mV)
1600 - 1150
1540 - 1112
1500 - 1100
1400 - 1050
1360 - 1025
1330 - 1012
1300 - 1000
1250 - 950
1200 - 937
1100 - 882
1040 - 862
990 - 850
780 - 812
650 - 775
480 - 812
CPU Variant: 1
How the hell do you undervolt GPU and RAM?
Click to expand...
Click to collapse
werewolf kernel has the ability, using trickstermod

@someth1ng :I saw a setting for the gpu and the ram but I think that was my mistake.
today will correct first post and title!
btw: to find best configuration of voltages I need to undervolt by 10mV and test with quadrant if the phone is stable? and if it is stable undervolt again by 10 mV?
can anyone post default voltages?

Ahhh, makes sense because I'm on iodak's kernel. Better battery life.

-75 mV for cpu on iodak's kernel with variant 1. It looks stable also at - 100,but I think it's too much.
Inviato dal mio LG-P880 con Tapatalk 2

1600mhz: 1165 mV
1540mhz: 1140 mV
1500mhz: 1128 mV
1400mhz: 1103 mV
1360mhz: 1078 mV
1330mhz: 1053 mV
1300mhz: 1028 mV
1250mhz: 1003 mV
1200mhz: 978 mV
1100mhz: 953 mV
1040mhz: 928 mV
990mhz: 903 mV
780mhz: 828 mV
650mhz: 778 mV
480mhz: 752 mV
Click to expand...
Click to collapse
no problem so far,my phone is running from 102 mhz to 780 mhz..
Inviato dal mio LG-P880 con Tapatalk 2

iam running this now.
1500mhz: 1112 mV
1360mhz: 1075 mV
1320mhz: 1050 mV
1280mhz: 1025 mV
1240mhz: 1000 mV
1200mhz: 1000 mV
1150mhz: 975 mV
1080mhz: 950 mV
1040mhz: 925 mV
970mhz: 875 mV
820mhz: 850 mV
680mhz: 800 mV
550mhz: 775 mV
460mhz: 750 mV
iodak kernel 4x1500mhz

I just installed Werewolf's kernel and gonna test it out and see how low I can get (in terms of voltage - just so we're clear ).

Some voltages needed to be increased to work on Werewolf's kernel.
Frequency (MHz) - Voltage (mV)
1700 - 1225
1600 - 1150
1500 - 1100
1400 - 1050
1300 - 1000
1200 - 950
1100 - 900
1000 - 850
900 - 825
800 - 812
700 - 800
600 - 762
500 - 750
456 – 737

what app are you using for undervolting easy?

trickster mod on play store...
Sent from my LG-P880 using xda app-developers app

I'm running into some big troubles - burn tested on 1.7GHz at something like 1225mV then battery got to 0 - won't start properly and when I do, data fails.

well you better restore that nandroid

mpu
1500 1053v
1400 1043v
1300 1033v
1200 1013v
1100 983v
1000 963v
900 923v
800 883v
700 833v
600 783v
500 763v
456 743v
ram
1050v
1000v
950v
gpu
416 1100v
304 1050v
267 1000v
200 950v

bumping thread, since many people uses iodak 9.5 on kitkat atm thought this thread would be useful,
Also I've undervolted for -122 mV on MPU on all freqs, did benchmarks etc. with this setup and looks stable so far, doing a stability test atm.Got variant 1

Hey guys, sorry for bumping an old thread. I just want to ask if any of you experienced freeze with just -10mV for MPU?
I'm currently on Stock V20A, with WerewolfJB v10, Ottoman's V2 script and SQLite.
I use Device Control (like one on NamelessROM) to change governors.
CPU Variant: 2
CPU Governor: Conservative
IO Scheduler: SIO
I use Conservative because my device gets hot pretty quickly on Interactive/SmartAssV2, like 70-80C after using at least 10-20mins. I get stutters in Conservative but it's manageable, and I don't go beyond 50C even with heavy use.
Knowing it won't do any harm with a little tweaking, I undervolt Interactive by -50mV, and my device would freeze in less than 10mins. On -25mV, it improved a bit but it froze after 30mins. So I thought, maybe -10mV would be perfect for me but then, after an hour, the device froze again (SetCPU's stress test lasted only for 2mins on -10mV).
Am I doing something wrong here? I can see that many of you UV'd your device @ -100mV and get a stable performance.

Do you recommend underclocking my CPU?

Hello I have the 4x HD with CM10.1 installed the problem is that when I play games or when in direct sunlight my phone overheats and it occurred to me that maybe underclocking the CPU will help what do you guys think about that?
Sent from my LG-P880 using xda app-developers app

When you underclock under at 1000 MHz (per Core).
By normal usage the 2nd Core would like more come on.
And the battery drain would like higher.
Underlock to 1300 MHz and setting under volting fuse to :
1600mhz: 1237 mV
1540mhz: 1212 mV
1500mhz: 1200 mV
1400mhz: 1145 mV
1360mhz: 1130 mV
1330mhz: 1110 mV
1300mhz: 1050 mV
1250mhz: 1000 mV
1200mhz: 975 mV
1100mhz: 950 mV
1040mhz: 925 mV
990mhz: 900 mV
780mhz: 825 mV
650mhz: 775 mV
480mhz: 725 mV
(When you have a custom kernel that support undervolting!!)
LG 4X HD - Better than a Smartphone

Nemeziz 56th said:
When you underclock under at 1000 MHz (per Core).
By normal usage the 2nd Core would like more come on.
And the battery drain would like higher.
Underlock to 1300 MHz and setting under volting fuse to :
1600mhz: 1237 mV
1540mhz: 1212 mV
1500mhz: 1200 mV
1400mhz: 1145 mV
1360mhz: 1130 mV
1330mhz: 1110 mV
1300mhz: 1050 mV
1250mhz: 1000 mV
1200mhz: 975 mV
1100mhz: 950 mV
1040mhz: 925 mV
990mhz: 900 mV
780mhz: 825 mV
650mhz: 775 mV
480mhz: 725 mV
(When you have a custom kernel that support undervolting!!)
LG 4X HD - Better than a Smartphone
Click to expand...
Click to collapse
ok thanks

azteca452 said:
ok thanks
Click to expand...
Click to collapse
actually i have ROM ToolBox Pro and there is an option to overclock the default is 1500MHz but i have it set at 1100MHz does this undervolt automatically or not?

What default minimum freq or maximum freq?
When you set a lower frequency of the CPU.
The CPU would like take less voltage for the step.
But you can set more less voltage when you have a custom kernel that support undervolting and undervolting the different steps with your own volt steps.
Use Trickster Mod for it and undervolting in -10 UV steps and test it. Whether the CPU work stable.
LG 4X HD - Better than a Smartphone

Nemeziz 56th said:
What default minimum freq or maximum freq?
When you set a lower frequency of the CPU.
The CPU would like take less voltage for the step.
But you can set more less voltage when you have a custom kernel that support undervolting and undervolting the different steps with your own volt steps.
Use Trickster Mod for it and undervolting in -10 UV steps and test it. Whether the CPU work stable.
LG 4X HD - Better than a Smartphone
Click to expand...
Click to collapse
default minimum is 102MHz and max is 1100MHz

Ok
LG 4X HD - Better than a Smartphone

I wonder if undervolting it will help you. Could you test your phone after undervolting it and give a report? If it makes the phone run cool, it would help increasing the life expectancy of this phone.
Try it with some games at 100% brightness,50% brightness and some HD videos and using the camera. The phone heats up in each of these cases in my phone.
I dont have CM right now because I disliked it after using it for 2 weeks.

CPU Overclock

Hi,
I'm running CM 10.1 with Werewolf kernel v007. At 1600 MHz the CPU is stable, but at 1700 MHz, the phone freezes and I need to remove the battery. Any solution to make it stable? I tried to set 1325 mV instead of 1275mV, but the SetCPU crashes.

djlamaie said:
Hi,
I'm running CM 10.1 with Werewolf kernel v007. At 1600 MHz the CPU is stable, but at 1700 MHz, the phone freezes and I need to remove the battery. Any solution to make it stable? I tried to set 1325 mV instead of 1275mV, but the SetCPU crashes.
Click to expand...
Click to collapse
Try another over-clockable kernel, but i advice u to stay at the 1600 mhz no more.
Sent from my HTC One X using xda premium

djlamaie said:
Hi,
I'm running CM 10.1 with Werewolf kernel v007. At 1600 MHz the CPU is stable, but at 1700 MHz, the phone freezes and I need to remove the battery. Any solution to make it stable? I tried to set 1325 mV instead of 1275mV, but the SetCPU crashes.
Click to expand...
Click to collapse
I wouldnt worry about it, the difference between 1600-1700mhz is tiny and a 100mv voltage jump is a big jump to get 1700 stable. Personally is underclock mine to around 1200-1300

djlamaie said:
Hi,
I'm running CM 10.1 with Werewolf kernel v007. At 1600 MHz the CPU is stable, but at 1700 MHz, the phone freezes and I need to remove the battery. Any solution to make it stable? I tried to set 1325 mV instead of 1275mV, but the SetCPU crashes.
Click to expand...
Click to collapse
well, in that case you have no choice but to stay at 1.6GHz...
and two more side notes: i'd recommend tricksterMOD for such things like UV/OV, ... (i use it myself as well --> "guaranteed" working )
and the max voltage is capped @ 1300mV. more would be too much (remember, we have mobile device with no cooling, not like a lappy )

I would stay at 1600 MHz. The battery gets hot enough without pushing the phone.
I for my part had it underclocked at 1200 and after Optimux Prime kernel Im using 1500MHZ.

[KERNEL][AOSP/TW][27 Dec] War Kernel r3 // colder than ever

Hi all,
I'm happy to present you my kernel, War Kernel, based on latest TW kernel sources.
Here you go, @XxPixX :highfive:
Changes over stock :
Mali r3p2 merged
GCC 5.3 compiled (feels snappier!)
Defaults to interactive/ROW
59hz panel overclock for lower input lag (disabled for now)
FPBug patchset merged
TRIM support (read this)
13-step cpufreq
3-step GPU DVFS
That's all. These tiny changes are trully noticeable.
Download :
War r3 for CM12.1 (announce)
Raw r10 for Omni 4.4 (announce)
Raw r10 for CM11 (announce)
Raw r5 for Touchwiz (announce, 59hz variant)
(if the download page gets stuck disable your ad blocker)
old: r2/war, r1/war, r10, r9, r4/TW, r8, r7, r3/TW, r6, r2/TW, r1/TW, r5/KK4.4, r4/JB4.3, r3, r2/JB4.3, r2/JB4.2, r1
Dear developers
War Kernel repo
Raw Kernel repo
Raw Kernel for Touchwiz repo
Dear adventurers
nothing to see here
Have fun.

Good news! New kernel for note, thanks and i hope this will be a good kernel!
Enviado desde mi GT-N7000 usando Tapatalk 4

Thank you
Will try and report
Sent from my GT-N7000 using Tapatalk 4

Using in ROM http://forum.xda-developers.com/showthread.php?t=2386561 and so far did not show any apparent bug. Very fluid system. No overheating, lags and crashes. Let's wait a few more days. But congratulations on the good work.

fashed the kernel and so far so good everythig is ok. if its not to much to ask for a request. please in ur next release please add slide2wake function and sound boost like in dorimanx kernel.

Congrats and welcome
Sent from my GT-N7000 using xda premium

flashed this morning on SlimBean 8!
i'll test it today
thx for your job

onyez said:
please in ur next release please add slide2wake function and sound boost like in dorimanx kernel.
Click to expand...
Click to collapse
It would also be extra handy if your next kernel iteration could be able to prepare delicious meals, automagically disconnect when my ex-wipe™ calls and bark at postmen when they enter my front yard. Please consider including these useful futures®, I'd much appreciate it.

OK so after a few hours of testing, the phone is not heating up at all and its very fast and fluid but the battery runs down too quickly, lost 3 percent in time it took me to type this. I'll test how well it sleeps next and report back

welcome!!!

I am impressed with this kernel!
So snappy, smooth, cold and lets see the battery now...
Sent from my GT-N7000 using xda premium

Thanks everybody !
I will release two undervolted test builds (CPU and GPU) as soon as I can. CPU will only affect group B as I can't test for group A and C.
I do not intend to add some fancy features or overclocking to this kernel. I'm trying to make simple changes that have a real impact.
Remember : the main bottleneck of the Note is in userspace, not the kernel. The latest Insignal source drop may improve a lot the smoothness of our device. It is not merged yet into CyanogenMod, as it requires some big changes, but it will come some day. Crossing fingers.
I'm waiting for some more feedback...

GeeckoDev said:
Here you go, @XxPixX :highfive:
Click to expand...
Click to collapse
Thanks a lot for this, glad you released it to the public
Good work!

Currently testing cm10.2. Will try this kernel tomorrow with the latest cm10.1 build.

CPU undervolting test build.
Here's the hardcoded voltage table I'm using (only for group B), based on my own tests :
Code:
MHz mV crash nominal delta
1400 1200 1125 1300 100
1200 1100 1025 1225 125
1000 1000 950 1125 125
800 900 850 1050 150
500 875 825 950 75
200 850 775 950 100
Download : raw_kernel_r1_cpu.zip
This is a TEST BUILD so it may be UNSTABLE. Report any problem but don't complain.

GeeckoDev said:
CPU undervolting test build.
Here's the hardcoded voltage table I'm using (only for group B), based on my own tests :
Code:
MHz mV crash nominal delta
1400 1200 1125 1300 100
1200 1100 1025 1225 125
1000 1000 950 1125 125
800 900 850 1050 150
500 875 825 950 75
200 850 775 950 100
Download : raw_kernel_r1_cpu.zip
This is a TEST BUILD so it may be UNSTABLE. Report any problem but don't complain.
Click to expand...
Click to collapse
Im on a volt group B.
The most stable undervolt I use from ICS to JB is:
MHZ----------VOLT
1400---------1175
1200---------1150
1000---------1075
800-------------950
500-------------875
200-------------850
I use this all the time on TW, NX, LoKi kernel and no instability.
Will try your kernel later when I get to charge it a little bit more.
Lets see how those undervolts go :thumbup:
EDIT: now testing :thumbup::thumbup::thumbup::thumbup:
Sent from my GT-N7000 using Tapatalk 2

Ok, 20h+ uptime without any glitches. I will now compile the GPU undervolting test build. Feedback welcome!
EDIT: cm10.2 kernel will also follow

GPU undervolting test build #2
Slightly increased lowest GPU step from 133 to 134MHz as Tegrak was reporting an actual frequency of 115MHz. It should be even smoother now.
CPU voltage is stock, while the GPU voltage table is set as follow :
Code:
mHz mV crash nominal delta
267 900 800 1100 200
200 850 750 1100 250
134 800 <750 1000 200
Download the build here : raw_kernel_r1_gpu.zip
Same advice applies. This is a TEST BUILD. Please report back !
EDIT: I spotted a mistake in mali_platform_dvfs.c which was setting a higher voltage than needed when ASV_LEVEL was set to 0, so I set it to 1 (fix included in this build). Default voltages are 1100 and 1000mV in CM10.1 while it should be 1000mV and 950mV

GeeckoDev said:
GPU undervolting test build #2
Slightly increased lowest GPU step from 133 to 134MHz as Tegrak was reporting an actual frequency of 115MHz. It should be even smoother now.
CPU voltage is stock, while the GPU voltage table is set as follow :
Code:
mHz mV crash nominal delta
267 900 800 1100 200
200 850 750 1100 250
134 800 <750 1000 200
Download the build here : raw_kernel_r1_gpu.zip
Same advice applies. This is a TEST BUILD. Please report back !
EDIT: I spotted a mistake in mali_platform_dvfs.c which was setting a higher voltage than needed when ASV_LEVEL was set to 0, so I set it to 1 (fix included in this build). Default voltages are 1100 and 1000mV in CM10.1 while it should be 1000mV and 950mV
Click to expand...
Click to collapse
Hi! Just to clarify. Does this new build raw_kernel_r1_gpu have stock CPU mV like in OP or is this packed with the test build raw_kernel_r1_cpu from above?
Thanks!

bratboo said:
Hi! Just to clarify. Does this new build raw_kernel_r1_gpu have stock CPU mV like in OP or is this packed with the test build raw_kernel_r1_cpu from above?
Thanks!
Click to expand...
Click to collapse
This build indeed has stock CPU voltage table as said in the previous post. Thus if anyone has a problem, it will help me to fix the right voltage table (cpu or gpu).
However, the next r2 build will have both included. Also, you must know that the modifications only affect group B as I can't test for group A or C, and group B represents 90% of the Notes out there.