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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? I should remove the OC and just leave the UV?
Default Voltage and Clock:
- 1000MHz 1000mV
- 900MHz 950mV
- 750MHz 875mV
- 650MHz 850mV
- 500MHz 800mV
- 300Mhz 750mV

How do you undervolt the unit? Thanks.

ppsun said:
How do you undervolt the unit? Thanks.
Click to expand...
Click to collapse
With Pimp My CPU and EternityProject Kernel 1.4
Sent from my LG-P990 using Tapatalk

Help: OC/UV settings

I'm new to O2X undervolting, and I seem to be lost with the Kernel possibilities.
Is there a resource you can lead me to that offers a nice tutorial as to what OC/UV values are optimal (and at the same time safe) for our O2X? Or, mind sharing your settings?
I am currently on Cpasjuste's OC/UV kernel, stock v10b ROM, no OC, -25mV UVs.
In short, here's mine:
Code:
300 Mhz / 770 mV
500 Mhz / 775 mV
650 Mhz / 825 mV
750 Mhz / 850 mV
900 Mhz / 925 mV
1000 Mhz / 975 mV

Be conservative like u have, 25 to 50 off totals except 300mhz is a good safe uv.
Anything more is just silly/dangerous.
-smc

Uv is not dangerous. Ive got 1000mhz on 900Mv runs great...
U will post my uv stats in a couple of minutes
Sent from my LG-P990 using XDA App
1400 Mhz - 1100Mv
1300 Mhz - 1050Mv
1200 Mhz - 1025Mv
1100 Mhz - 975 Mv
1000 Mhz - 900 Mv
800 Mhz - 800 Mv
500 Mhz - 750 Mv
300 Mhz - 745 Mv

That is the kind of discussions Im looking for. How low is low for each freq? Do we have a specsheet that we can use as scientific basis?
In any case, i'm guessing that if anything goes wrong and the fone doesnt boot, i guess we can just reflash our kernel right? No data wipe needed?
Sent from my Optimus 2X.

Well the word dangerous was probably a tad harsh but there’s always a chance for loss of data and stability issues.
Note: You can't undervolt lower then 770mv on a Tegra device which the lowest speed of 300mhz (depending on kernel) defaults to, plus each device is different and will uv/oc differently so no real spec sheet can give definitive answers for your device, only trial and error.
I’m running -50 for all values except for 500mhz -25 and 300 default and using mck kernel r14.
I liked cpasjuste’s version 5 kernel "alot", be heading back once his version 8 issues are fixed soon.
-smc

somemadcaaant said:
Well the word dangerous was probably a tad harsh but there’s always a chance for loss of data and stability issues.
Note: You can't undervolt lower then 770mv on a Tegra device which the lowest speed of 300mhz (depending on kernel) defaults to, plus each device is different and will uv/oc differently so no real spec sheet can give definitive answers for your device, only trial and error.
I’m running -50 for all values except for 500mhz -25 and 300 default and using mck kernel r14.
I liked cpasjuste’s version 5 kernel "alot", be heading back once his version 8 issues are fixed soon.
-smc
Click to expand...
Click to collapse
AFAIK, the only issue with v8 is loss of tethering right? (As I don't use that anyway.)
I'm looking for a specsheet as that will tell us the long-term allowable operating voltage and temperatures of our CPU. (Back in my milestone, there was a post in Android-Hilfe that used the TI OMAP specsheet as basis for our 60vsel OC settings.)
Below are my current freq settings:
Code:
300 Mhz / 770 mV (-0)
500 Mhz / 775 mV (-25mV)
650 Mhz / 825 mV (-25mV)
750 Mhz / 850 mV (-25mV)
900 Mhz / 875 mV (-75mV)
1000 Mhz / 900 mV (-100mV)
1100 MHz / 1000mV (-100mV)

I also have similar settings and have no problems at all on stock rom. On CM7 I did encounter issues....
salisbury_steak said:
AFAIK, the only issue with v8 is loss of tethering right? (As I don't use that anyway.)
I'm looking for a specsheet as that will tell us the long-term allowable operating voltage and temperatures of our CPU. (Back in my milestone, there was a post in Android-Hilfe that used the TI OMAP specsheet as basis for our 60vsel OC settings.)
Below are my current freq settings:
Code:
300 Mhz / 770 mV (-0)
500 Mhz / 775 mV (-25mV)
650 Mhz / 825 mV (-25mV)
750 Mhz / 850 mV (-25mV)
900 Mhz / 875 mV (-75mV)
1000 Mhz / 900 mV (-100mV)
1100 MHz / 1000mV (-100mV)
Click to expand...
Click to collapse

damirovic said:
I also have similar settings and have no problems at all on stock rom. On CM7 I did encounter issues....
Click to expand...
Click to collapse
Shouldn't CM7 have it's own set of optimized freq values? (And can anyone post them here? )

OC/UV settings

What are your OC/UV settings?
Thank's for the info!
Sent from my GT-P1000 using Tapatalk

Currently at:
Min: 100mhz
Max: 1200mhz
Cpu Govenor: Conservative
I/O: V(R)
Works great for me, no lags everything runs smoothly

I'm currently running:
Minimum: 100 Mhz
Maximum: 1300MHz
with the ondemand scheduler
and the sio I/O scheduler
All this is on Overcome Jupiter and I find it gives me enough power to keep things running smoothly but the battery is still great.
At the moment, I'm not Undervolting but I used to run it in a cascading scheme where at 1300 I would undervolt 125 and drop 25 each frequency step until at 800 MHz it was back at standard voltages. This improved my battery a bit but led to the occasional glitch etc.

Performance case:
Minimum: 200 Mhz (200 mhz -75mV, 400-1000mhz -50mV, 1200mhz -25mV, 1300-1500mV untouched)
Maximum: 1600MHz (overvolt +50mV)
ondemand\performance cpu governor
deadline I/O scheduler (looks pretty faster than sio)
Battery saving case:
Minimum: 100 Mhz (100-600mhz -75mV)
Maximum: 1000MHz (800-1000mhz -50mV)
with the powersave cpu governor
noop I/O scheduler
those settings are best as for me.
also if i need extreme speed i lock CPU @ 1600mhz or cut its scaling up to 1400-1600mhz (beacuse overheatings suck badly)
using modded Overcome 3.1.0

I used the performance settings above and so far so good. I'll post back if battery performance is any better.
Sent from my PC36100 using XDA App

5 days with moderate usage
Sent from Sprint Galaxy Tab

2.5 days with heavy heavy usage.
Sent from Sprint Galaxy Tab

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.