Share your Undervolt settings & battery life - Xperia Z General

Hi everyone,
With the release of DooMLoRD's kernel, we can now undervolt our Xperia Zs! Would like to start compiling results so we can know how far our S4s can be pushed.
Current Settings
- KA2.2 + DooMKernel v2
- Stable for 24hrs, Max clock @ 1.51GHz, Antutu stability tested
- Using System Tuner Pro
===========================
M/GHz - mV
384 - 800 (-50)
432 - 800 (-75)
486 - 800 (-75)
540 - 800 (-100)
594 - 800 (-100)
648 - 825 (-100)
702 - 825 (-100)
756 - 875 (-100)
810 - 875 (-100)
864 - 900 (-100)
918 - 900 (-100)
972 - 925 (-100)
1.02 - 925 (-100)
1.08 - 975 (-100)
1.13 - 975 (-100)
1.18 - 1000 (-100)
1.24 - 1000 (-100)
1.29 - 1000 (-125)
1.35 - 1000 (-125)
1.40 - 1000 (-137.5)
1.45 - 1000 (-137.5)
1.51 - 1000 (-150)
Battery Life
5.3 hours screen on time, 27hours total
No Stamina Mode

Posting the original voltage values here as a reference.
Original stock voltage for 4.1.2
======================
M/GHz - mV
384 - 850
432 - 875
486 - 875
540 - 900
594 - 900
648 - 925
702 - 925
756 - 975
810 - 975
864 - 1000
918 - 1000
972 - 1025
1.02 - 1025
1.08 - 1075
1.13 - 1075
1.18 - 1100
1.24 - 1100
1.29 - 1125
1.35 - 1125
1.40 - 1137.5
1.45 - 1137.5
1.51 - 1150

Reserved for future use - e.g best undervolt settings.

Because i didnt have much time And had bad results on my x10i i just took a look at cpuspy and undervolted only These frequencys that were heavy used.
Till now i have:
384 - 800
1242 - 950
1512 - 1050

Haldi4803 said:
Because i didnt have much time And had bad results on my x10i i just took a look at cpuspy and undervolted only These frequencys that were heavy used.
Till now i have:
384 - 800
1242 - 950
1512 - 1050
Click to expand...
Click to collapse
That's a good idea - any stability issues?
------------------------------------------
Sony Xperia Z C6603 Purple | KA Revolution 2.2

There is actually not much to go lower - more or less set according to your suggestion - first steps at 800 mA.
Also stable without any issue. Seems I can recommend it to others. I cannot evaluate the battery as I run it for a short time and had some hidden wakelock by Google but seems to be a little bit better than stock setting.

Thank you for the settings! I've applied them and had no freezes or reboots in 5 hours.
Battery life seems really improved (95% after 5 hours with 30 minutes screen on) undervolting and using the app greenify (my phone sleeps like a baby!). I'll test deeper uv in the next days

grievous2004 said:
Thank you for the settings! I've applied them and had no freezes or reboots in 5 hours.
Battery life seems really improved (95% after 5 hours with 30 minutes screen on) undervolting and using the app greenify (my phone sleeps like a baby!). I'll test deeper uv in the next days
Click to expand...
Click to collapse
wow thats impressive!

Just ran 16 hours with new settings adjustments thanks to haidil. Totally stable. 4.8 hours of screen time, 1 hour of voice calls, 9% battery left. Simply incredible results.
M/GHz - mV
384 - 800 (-50)
432 - 800 (-75)
486 - 800 (-75)
540 - 800 (-100)
594 - 800 (-100)
648 - 825 (-100)
702 - 825 (-100)
756 - 875 (-100)
810 - 875 (-100)
864 - 900 (-100)
918 - 900 (-100)
972 - 900 (-125)**
1.02 - 900 (-125)**
1.08 - 950 (-125)
1.13 - 950 (-125)
1.18 - 950 (-125)**
1.24 - 950 (-125)**
1.29 - 1000 (-125)
1.35 - 1000 (-125)
1.40 - 1000 (-137.5)
1.45 - 1000 (-137.5)
1.51 - 1000 (-150)
** changes from first settings set
Gonna try and lower the 1.29 to 1.51 spectrum tomorrow after charging.
------------------------------------------
Sony Xperia Z C6603 Purple | KA Revolution 2.2

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Voltages
Just tested,, Voltage Control and SetCPU apps and it is not possible for me to set voltages....what is wrong ?
PS: incredicontrol is solution and OP values work

Jup, incredicontrol works fine.
Haldi4803 said:
Because i didnt have much time And had bad results on my x10i i just took a look at cpuspy and undervolted only These frequencys that were heavy used.
Till now i have:
384 - 800
1242 - 950
1512 - 1050
Click to expand...
Click to collapse
Btw, added 1350 - 975
It did work fine on 950 at first .... 5minutes Antutu stress test np... but after i quit the test and went back to home screen i got a reboot ^^

Sent from my L36h using xda premium

GiGi. said:
Click to expand...
Click to collapse
Disgustingly good! :thumbup:
------------------------------------------
Sony Xperia Z C6603 Purple | KA Revolution 2.2

GiGi. said:
Click to expand...
Click to collapse
Settings and any special app used please?

Lowering down of the values below does not work - rebooted after taking a call.
===============
1.29 - 975 (-150)
1.35 - 975 (-150)
1.40 - 975 (-162.5)
1.45 - 975 (-162.5)
1.51 - 975(-175)
Trying these values now [UPDATE: FAILED]
===================
1.29 - 987.5 (-137.5)
1.35 - 987.5 (-137.5)
1.40 - 987.5 (-150)
1.45 - 987.5 (-150)
1.51 - 987.5 (-162.5)
EDIT: Latest values not working too, reboots - looks like we hit the wall on 1000mV for 1.51 at least. Gonna try pushing the rest down except 1.51.
Latest Try [Update: Success so far!]
===============
1.29 - 975 (-150)
1.35 - 975 (-150)
1.40 - 987.5 (-150)
1.45 - 987.5 (-150)
1.51 - 1000 (-150)
EDIT: been on the latest settings for about 6 hours with intensive use... AND NO PROBLEMS. Looks like the margin of UV is about -150 mV...

Trying 1836mhz @1200mV.... the Problem there is the Phone Already Throttles Down the 3 other Cores to 1512 when the battery hits 27°C xD Lucky it's water proof!
Edit: Crap 1200 doesn't work! made 4 Antutu benches with CoolTool overlay and Trepn profiler logging no PRoblem! But doing solely Antutu it crashes! had to raise it to 1225mV
@BoneMo with 20°C WaterTemperature, nope.

Haldi4803 said:
Trying 1836mhz @1200mV.... the Problem there is the Phone Already Throttles Down the 3 other Cores to 1512 when the battery hits 27°C xD Lucky it's water proof!
Click to expand...
Click to collapse
wow, water cooling for phone...omg

scoopdreams said:
Lowering down of the values below does not work - rebooted after taking a call.
===============
1.29 - 975 (-150)
1.35 - 975 (-150)
1.40 - 975 (-162.5)
1.45 - 975 (-162.5)
1.51 - 975(-175)
Trying these values now [UPDATE: FAILED]
===================
1.29 - 987.5 (-137.5)
1.35 - 987.5 (-137.5)
1.40 - 987.5 (-150)
1.45 - 987.5 (-150)
1.51 - 987.5 (-162.5)
EDIT: Latest values not working too, reboots - looks like we hit the wall on 1000mV for 1.51 at least. Gonna try pushing the rest down except 1.51.
Latest Try [Update: Success so far!]
===============
1.29 - 975 (-150)
1.35 - 975 (-150)
1.40 - 987.5 (-150)
1.45 - 987.5 (-150)
1.51 - 1000 (-150)
EDIT: been on the latest settings for about 6 hours with intensive use... AND NO PROBLEMS. Looks like the margin of UV is about -150 mV...
Click to expand...
Click to collapse
Hi,
How are the voltage tests going?
Can you provide your final and stable table?
Thanks

Is there any way to undervolt with stock rom and stock kernel?

Related

Post your voltage settings and your experience ...

Hi @all,
everyone is invited to post
1. ROM
2. Kernel
3. Kernel settings
4. UV settings
independently of ROM or Kernel used.
It might be a good starting point to compare other user´s experience.
Before using the settings postet in this thread please keep in mind that each device is different. Good settings for device A might produce freezes on device B.
So share your and enjoy other´s experience´s ...
here are my stable settings:
ROM: CheckROM RevoHD v6
Kernel: N.E.A.K. 1.4x
CPU Gorvernor: conservative (with all tweaks over CWM recovery enabled)
I/O Sched: sio
200 Mhz - 1200 Mhz
Voltages:
100 Mhz - 850 mV (... can´t go lower for testing with voltage control )
200 Mhz - 850 mV (... can´t go lower for testing with voltage control )
500 Mhz - 875 mV
800 Mhz - 975 mV
1000 Mhz - 1075 mV
1200 Mhz - 1175 mv
GPU settings:
Low: 133 Mhz - 800 mV
High: 133 Mhz - 800 mV
I am not a gamer and this settings are solid stable for my device. I use the phone mainly for (heavy) phone call´s (I know its old fashion ) and @home for surfing via WIFI. I enable my mobile data connection only when I need it.
This setting´s give me 3 - 4 days battery life.
I use lulzactive governor and vr I/O sched before and I feel NO difference in performance compared with the above settings (regarding scrolling through menus, starting apps ...), but the above settings gives me better battery.
Regards
Antonio
Update: I have to mention that I have the 2000 mAh Samsung battery.
OROM: Stock 2.3.5
Kernel: N.E.A.K 1.3.3.x
Voltage controls: All default.
100-800mhz
Lulzactive, VR
I usually get 1 & a half days battery, with an average of 7 hours screen time. The phone still runs beautifully while playing games and such so I have no problems in that category.
Edit:
Wifi on 80% of the time, a few hours of XDA. Skype on 100% while wifi is on. A few hours of games (dolphin, mc3, cut the rope, etc.), hours of Internet browsing, etc.
Sent from my GT-I9100 using XDA
A last note:
Posting your settings and your battery charge cycle, please also mention the way you using your phone during the day to make your post more comparable ...
have fun
Voltages
Using Checkrom V6, lulzactive gov. NEAK Kernel
1200mhz @ 1150mV
1000 @ 1050
800 @ 975
500 @ 875
200 @ 850
100 @ 825 (min freq is 200mhz anyway, so this freq is not used at all)
Rock solid, never a kernel panic/crash
My battery last 2 days with push Exchange connectivity, gmail pushing too, some gaming (no more than 1h x day), 1h voice calls x day, normal texting activity (30-50 daily text messages) and automatic brightness customized to be darker than default.
Battery last longer if you do not let fully discharge it (plug it at night if you can, no matter the charge left).
@Floodland
I usually don´t let the battery go down below 15% - 20%, then I start a new charge ... I break this rule only in case on an emergency when no charger is near by me
I´ll try your 1000 MHz and 1200 MHz voltage setting´s, will post back if they work on my phone
ROM:Custom Made DXKL3
Kernel:SiyahKernel 2.6.13
Governor:SIO,ondemand
Voltages:
100 Mhz - 800 mV
200 Mhz - 850 mV
500 Mhz - 900 mV (default)
800 Mhz - 950 mV
1000 Mhz - 1050 mV
1200 Mhz - 1150 mv
1400 Mhz - 1250 mV
1600 Mhz - 1350 mV
GPU settings:
1: 133 Mhz - 800 mV
2: 266 Mhz - 950 mV
3: 400 Mhz - 1100mV
battery life around 2 days with light usage, 8 hours for heavy usage.
at present 44% after 32 hours, with 2:15 hours display on, wifi on, 3G off
ROM: All GB ROMs
KERNEL: Siyah, NEAK and Redpill
SCHEDULER: Usually I keep it unchaged
GOVERNOR: ondemand or conservative
FREQUENCY: 200MHz- 800 or 1000 or 1200MHz
UV:
-CPU
200MHz - 800 mV
500MHz - 850 mV
800MHz - 950 mV
1000MHz-1050mV
1200MHz-1150 mV
FYI, I always use this cpu uv settings from 6 months ago -- since the first time I got my SGS2 undervolted while using ninphetamine kernel, to be exact. It always stable on my SGS2.
GPU:
133 MHz - 800 MHz
267 MHz - 950 MHz
Sent from my GT-I9100 using xda premium
New voltages ...
Hi @all,
here are my settings after new tests. The stability was testet by three sequential cycles of the N.E.A.K tester in each (fix) frequency:
100 Mhz - 850 mV
200 Mhz - 850 mV
500 Mhz - 850 mV
800 Mhz - 950 mV
1000 Mhz - 1050 mV
1200 Mhz - 1150 mv
Will test in next bettery cycle if they are stable in daily use, and report. Fell quite secure cause i´m not a heavy user...
Will test the settings starting tomorrow with the new N.E.A.K 1.4.1x kernel (simone told in his thread that the kernel should be released this afternoon).
ROM: Fatal1ty Extreme Edition (XWLA4)
Kernel: Red Pill 1.3
CPU Gorvernor: conservative
I/O Sched: sio
200 Mhz - 1200 Mhz
Voltages:
100 Mhz - 825 mV (Stable but not in use as it tends to lag a bit)
200 Mhz - 825 mV
500 Mhz - 875 mV
800 Mhz - 950 mV
1000 Mhz - 1025 mV
1200 Mhz - 1125 mv
1400 Mhz - 1225 mv (Stable but not in use as don't need it)
1500 Mhz - 1350 mv (Stable but not in use as don't need it)
GPU settings:
Low: 114 Mhz - 800 mV
High: 267 Mhz - 950 mV
I have 2 Exchange accounts on push, Gmail Push, hotmail every hour, and moderate use. Screen time Usually between 2-4 hours. Used to get 2 days, but getting epic wakelocks from google services since the Google Play update. so im trying work that out. at the moment of about 14 hours i have 2hours screen time and 34% battery left.
Red pill rules
ROM: Checkrom revo hd V6 (XWLA4)
Kernel: Red Pill 1.3
CPU Gorvernor: Hyper
I/O Sched: N/A
200 Mhz - 1200 Mhz
Voltages:
100 Mhz - 900 mV
200 Mhz - 900 mV
500 Mhz - 950 mV
800 Mhz - 1000 mV
1000 Mhz - 1100 mV
1200 Mhz - 1200 mv
1400 Mhz - N/A
1500 Mhz - N/A
I USED THE KERNEL Neak BUT I'll take the RED PILL IS SIMPLY THE BEST BUT THE BEST OF SIYAH MORE FLUID AND ENHANCED THIS LAST
TWO CORES ARE ENABLED
did a test for each freq and volt with STABILITY TEST app.
ROM: cognition 1.51
Kernel: Siyah 2.6.14
I/O Schrduler: sio
CPU Gorvernor: smartassV2
CPU:
100 Mhz - 1600 Mhz
Voltages:
100 Mhz - 850 mV
200 Mhz - 850 mV
500 Mhz - 875 mV
800 Mhz - 950 mV
1000 Mhz - 1050 mV
1200 Mhz - 1200 mv
1400 Mhz - 1275
1600 Mhz - 1400 mv
GPU:
100Mhz-800mv
267Mhz-950mV
normally working from 100mhz-800mhz.
i managed to get lower mv for the cpu and stable but it was the limit. so i added 25mv more for more stable results.
Who dares trying my extreme UV values ? ​
My UV stable table (Mhz/mA) :
1200 (1125) | 1000 (1025) | 800 (950) | 500 (850) | 200 (800) | 100 (800)
Noop + On demand.
Thanks to NEAK for its magic on my S2
ROM: CM9
Kernel: NEAK 2.0.2x
I/O Schrduler: vr
CPU Gorvernor: ondemand
CPU:
200 Mhz - 1000 Mhz
Voltages:
200 Mhz - 850 mV
500 Mhz - 900 mV
800 Mhz - 950 mV
1000 Mhz - 1050 mV
GPU:
133Mhz-800mv
166Mhz-800mV
Works perfect for me. Always heavy usage and get nearly 24hours with standard battery. Screen on time 4 hours. With siyah I had nearly the half of the uptime.
Wifi always on. Sync on. I mean this is what it was made for
-sent from sgs2 tapatalk

Share your Voltage Settings here!

Hey everyone, I figured we deserved to have this thread as I hadn't seen one yet. I'm forever trying to tweak and adjust my voltages on my NS4G and I just wanted to see what everyone else was running and with what degree of success.
List your ROM/Kernel combo and your OC/OV/UV settings!
Currently:
CodenameAndroid 1.4.0
Matr1x v17.5 cfs
1300/400 SavagedZen
Deep Idle on.
@1.3GHz - 1430mV
@1.2GHz - 1350mV
@1GHz - 1280mV
@800MHz - 1205mV
@400MHz - 1030mV
...Stability tests are ongoing.
Rom: MIUI 2.3.9 (ICS)
Kernel: Matrix 17.5
Live OC: 105
Min: 210
Max: 1050
Voltage: All stock voltages dropped by 25
Scheduler: Deadline
Deep Idle: On
The voltages being dropped immensely helps battery life. I get at least 12 hours with heavy use and about a day and a half with light use.
Sent from my Nexus S 4G using xda premium
Almost same..
http://forum.xda-developers.com/showthread.php?t=1335429
Undervolting doesn't actually help the battery :$.... Well by much anyways. If it does it will be like a 2% difference... Instability doesn't seem worth it for 2%
Nexus S (GSM i9020a)
AOKP (Milestone 4)
Air Kernel (3.45)
OC 800/100 (Lionheart)
Live OC (100 - Noop)
v6 Supercharged
309041291a said:
Undervolting doesn't actually help the battery :$.... Well by much anyways. If it does it will be like a 2% difference... Instability doesn't seem worth it for 2%
Nexus S (GSM i9020a)
AOKP (Milestone 4)
Air Kernel (3.45)
OC 800/100 (Lionheart)
Live OC (100 - Noop)
v6 Supercharged
Click to expand...
Click to collapse
I always doubted bedalus claims on the matter (and even communicated with him through PM).
Time permitting, I'd like to do some tests myself about undervolting, because I am pretty sure it has an impact.
Anyway, my settings are in my signature.
polobunny said:
For those interested, I spent the night yesterday testing out ARM voltages on my phone that were absolutely stable but hopefully under the stock ones to save more battery.
Had a look at morfic's git for a good idea, so thanks to him.
Might not work on your phone, so use at your own risk.
100MHz 875mv (75mv under stock)
200MHz 875mv (75mv under stock)
400MHz 900mv (150mv under stock)
800MHz 1125mv (75mv under stock)
1000MHz 1225mv (25mv under stock)
Click to expand...
Click to collapse
Some people have a problem with 400MHz at 900, 950mv seems good for anyone though.
AOKP milestone 4
mart1x cfs v18.0
both settings have been run for days without reboot
setting no.1
840/100 smartassv2 noop
selective liveoc 105
freq arm int
840 1075 950
400 950 950
200 850 950
100 850 900
setting no.2
1000/100 smartassv2 noop
freq arm int
1000 1150 1000
800 1050 950
400 950 950
200 850 950
100 850 900
lolokman said:
AOKP milestone 4
mart1x cfs v18.0
both settings have been run for days without reboot
setting no.1
840/100 smartassv2 noop
selective liveoc 105
freq arm int
840 1075 950
400 950 950
200 850 950
100 850 900
setting no.2
1000/100 smartassv2 noop
freq arm int
1000 1150 1000
800 1050 950
400 950 950
200 850 950
100 850 900
Click to expand...
Click to collapse
What's the battery like? And I believe the matrix kernel is already Undervolted by default.
Nexus S (GSM i9020a)
AOKP (Milestone 4)
Air Kernel (3.45)
OC 800/100 (Lionheart)
Live OC (100 - Noop)
v6 Supercharged
Just got over 1 day of battery dropping all stock voltages by 25.
Codename 1.5.5
Matr1x 18.0 cfs
1200/200 lazy
Sent from my GT-P7510 using XDA Premium HD app
gear.h34d.2012 said:
Just got over 1 day of battery dropping all stock voltages by 25.
Codename 1.5.5
Matr1x 18.0 cfs
1200/200 lazy
Sent from my GT-P7510 using XDA Premium HD app
Click to expand...
Click to collapse
On-screen time? With a screen
Nexus S (GSM i9020a)
AOKP (Milestone 4)
Air Kernel (3.45)
OC 800/100 (Lionheart)
Live OC (110 - Noop)
v6 Supercharged
lolokman said:
AOKP milestone 4
mart1x cfs v18.0
both settings have been run for days without reboot
setting no.1
840/100 smartassv2 noop
selective liveoc 105
freq arm int
840 1075 950
400 950 950
200 850 950
100 850 900
setting no.2
1000/100 smartassv2 noop
freq arm int
1000 1150 1000
800 1050 950
400 950 950
200 850 950
100 850 900
Click to expand...
Click to collapse
Interestingly I'm able to undervolt quite a lot more than I've ever been able to using this smartassv2/ noop setup. I'm not sure what it is but anytime I'd try to under volt matrix v18 any below stock I'd get reboots but with this setup I'm close to the values you've set and it's been stable so far. Its not undervolted as heavily and I don't have liveoc enabled at the moment. I'm just enjoying the ability to under volt it to where it is at the moment.
Sent from my Nexus S using Tapatalk
Currently using Franco kernel 1.2 and I dropped the stock voltages by 50(I was feeling a bit adventurous). Getting pretty nice battery life and stable(no reboots yet).
Sent from my Nexus S using Tapatalk 2 Beta-2
polobunny said:
I always doubted bedalus claims on the matter (and even communicated with him through PM).
Time permitting, I'd like to do some tests myself about undervolting, because I am pretty sure it has an impact.
Anyway, my settings are in my signature.
Some people have a problem with 400MHz at 900, 950mv seems good for anyone though.
Click to expand...
Click to collapse
Not sure if lower voltages, would make for less amp/wattage draw,
Sent from my Nexus S 4G using Tapatalk
what exactly is the difference between arm and int voltage? and what should i drop? both?
i have been undervolting with the internal voltage controle of aokp and this only drops int voltages //edit: After taking a second look, it seems like its arm thats changing...
I've dicked around with undervolting since my Evo days, and honestly, it does nothing for battery life. Multiple kernel developers - not to mention bedalus's tests - confirm this.
Undervolting seems useful only for providing an excuse for futzing with your phone. Any power savings are likely anecdotal or psychological.
i start from now the undervolitng , i chek and after i post my expirience .
gear.h34d.2012 said:
Just got over 1 day of battery dropping all stock voltages by 25.
Codename 1.5.5
Matr1x 18.0 cfs
1200/200 lazy
Sent from my GT-P7510 using XDA Premium HD app
Click to expand...
Click to collapse
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There it is.
gear.h34d.2012 said:
There it is.
Click to expand...
Click to collapse
I bet your phone was on idle most of the time.
currently running with these voltage settings:
freq arm int
1200 1350 1125
1000 1225 1075
800 1075 1000
400 950 1000
200 875 975
Governor:SmartassV2
Scheduler:noop
mix/max:200/1200
Rom:Codename Android 3.6.0
Kernel:AirKernel 65fps+BlueColor HBM #211
no reboots so far, but i feel that i've not reached the down-limit point! especially for 1000mhz freq
i'm default
please give me description about voltages.

Ics stable voltages UV/OC

HI
since in ICS firmwares we can talk about different cpu voltages than gb and i think it's a hot subject mostly in kernel threads i believe i can start this thread because many are interested about this. i use speedmod kernel k3-7 and i can use only tegrak overclock ultimate to change voltages. my stable config is:
200 mhz- 825 mv
500 mhz-925 mv
800 mhz-975 mv
1000 mhz-1050 mv
1200 mhz-1150 mv
with this config i get no freeze or sod. so please post your stable config too.
new info:
-seems that i can't go below 925 mv at 500 mhz
-i will see how the battery life will go with these voltages and i will post some pictures because i am interested in undervolting for battery life.
i also saw a post in neak ics kernel where a user had 7 h and 32 minutes display time.
pissyhun said:
HI
since in ICS firmwares we can talk about different cpu voltages than gb and i think it's a hot subject mostly in kernel threads i believe i can start this thread because many are interested about this. i use speedmod kernel k3-7 and i can use only tegrak overclock ultimate to change voltages. my stable config is:
200 mhz- 825 mv
500 mhz-925 mv
800 mhz-975 mv
1000 mhz-1050 mv
1200 mhz-1125 mv
with this config i get no freeze or sod. so please post your stable config too.
Click to expand...
Click to collapse
What were your gb values?
Sent from my GT-I9100 using Tapatalk
Yes, I don't see the values changing with ICS.
I should pay some more time on it... 825mV for 200MHz so amazing
hi
it seems if i go down 925 mV for 500 mhz i got freeze.
Hrithan2020 said:
What were your gb values?
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
hi
theese were my values in gb roms:
1200mhz - 1150mv (stock = 1250mv)
1000mhz - 1050mv (stock = 1150mv)
800mhz - 950mv (stock = 1050mv)
500mhz - 875mv (stock = 975mv)
200mhz - 850mv (stock = 975mv)
and i used phenomenal 4.0 extreme without freeze or sod.
my phone was produced in octomber 2011.
pissyhun said:
hi
theese were my values in gb roms:
1200mhz - 1150mv (stock = 1250mv)
1000mhz - 1050mv (stock = 1150mv)
800mhz - 950mv (stock = 1050mv)
500mhz - 875mv (stock = 975mv)
200mhz - 850mv (stock = 975mv)
and i used phenomenal 4.0 extreme without freeze or sod.
my phone was produced in octomber 2011.
Click to expand...
Click to collapse
Strange.. Are you sure, that you had set the lowest possible values for GB?
For me, it looks as if I would have to increase the voltages a bit in ICS.
Haven't looked too much into it.. [running CM9 with Siyah rc3.. both beta.. need work]
GB voltage:
1200 MHz - 1150 mv
1000 MHz - 1050 mv
800 MHz - 950 mv
500 MHz - 850 mv
200 MHz - 800 mv
Always stable for me. I always use this voltage settings until I update my phone into ICS.
ICS voltage:
1200 MHz - 1150 mv
1000 MHz - 1050 mv
800 MHz - 950 mv
500 MHz - 925 mv
200 MHz - 800 mv
It seems I can't set the voltage for 500 MHz lower anymore. Otherwise the phone will freeze.
Sent from my GT-I9100 using xda premium
so far so good.
they seem to be working for me as well.
using Siyah latest kernel and Hydrog3n rom.
hi
some users reported theese voltages to be stable:
200-800 mv
500 - 925 mv
800 - 950 mv
1000 - 1050 mv
1200 - 1125 mV
pissyhun said:
hi
it seems if i go down 925 mV for 500 mhz i got freeze.
Click to expand...
Click to collapse
Hahaha, Are you really sure ?
Who dares trying my extreme UV​ values ?​
My UV stable table (Mhz/mA) :
1200 (1125) | 1000 (1025) | 800 (950) | 500 (900) | 200 (800) | 100 (800)
Noop + On demand.
Thanks to NEAK for its magic on my S2
Hi
Changed kernel-neak and i use now
850 900 950 1025 1125 mv
Sent from my GT-I9100 using XDA
well this are my settings:
Min/max: 100 mHz-1200mHz
vr - smartassV2
100 - 825
200 - 875
500 - 925
800 - 975
1000 - 1050
1200 - 1150
Siyah 3.0
i tryied to go a lil bit under this settings, but then i had some freezes. i think 500 and 800 makes the most problems.
on ics i have to pull up a bit the voltages that were stable for me on gb, but the annoying thing is that i can´t go less than 925mv for 500mhz step, i get freezes and on gb i was on 875
I'm running 200Mhz 775mV stable
800Mhz 925mV
But cant get stable at 1600Mhz, I get freeze on anything between 1325-1500mV
Anyone can?
This thread is kind of useless .. every phone supports different UV !
Sent from my GT-I9100 using xda premium
I dont think so
Sent from my GT-I9100 using XDA
i am confused cause all tht magic an other tweaks really dint work for me,i tried all but sometimes the phone runs jus for few mins and right now my phone is fully loaded like 400+apps an iam downloading more day by day too check how much sgs2 will handle.an yes i think every phone is diff...
Jodelaplaya said:
This thread is kind of useless .. every phone supports different UV !
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
pissyhun said:
I dont think so
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Well, each phone has different tolerance to Undervolting. I for example can not go lower then these values:
200MHz - 900/925mV
500MHz - 950/975mV
800MHz - 1050mV
1000MHz - 1100-1150mV
1200MHz - 1250mV
If I go lower then 1250mV for 1200MHz, I will get freezes (if not instant then when browsing the net or something heavy). As you can see my values are not so "extreme", other people can undervolt much more.
There has been one succesfull thread of this type from Geko, it's called MagicConifg (if you click on Undervolting in my signature you will be taken there). He tested for months which UV settings would work for 99% of the people. I was one of the few people that couldn't handle his config
Anyway, I don't say that this thread is totally useless. Discussing UV settings can be helpfull for others which are new to Undervolting. But for me the UV settings have stayed the same as on GB, don't know if it's so different UV'ing on GB and on ICS.
As long as people realise: the settings that work for somebody may not work on your own phone! A lot of people in this thread undervolt heavy and there is a big chance your own phone will freeze (and if you set it on boot and can't remove them anymore, that means reflashing your rom...). So be carefull
Cm9 rom/kernal
200 @ not used
500 @ 825 mV
800 @ 950 mV
1000 @ 1050 mV
1200 @ 1150 mV

[Q] Default (stock) frequency/voltage table?

Hi!
Please help me clarify what the stock Nexus 7 CPU frequencies and voltages are. I tried a few kernels, and each of them seems to have its own set of frequencies and voltages, often differentiated by ~50 mV.
For example, franco r23 kernel has the following (I took just a few values):
100 MHz = 850 mV, 1 GHz = 1025 mV, 1.3 GHz = 1125 mV
motley 4.1.2 classic kernel (updated by Metallice):
520 MHz (lowest) = 800 mV, 1.05 (doesn't have 1.00) GHz = 975 mV, 1.3 GHz = 1075 mV
M-kernel a2 by Metallice: same as above
faux b8es:
550 MHz (lowest) = 800 mV, 1.15 (doesn't have 1.00) = 975 mV, 1.3 GHz = 1100 mV
So what is the stock frequency/voltage table? Could someone please post it here or let me know how to get if from my device?
Thanks in advance!

Undervolting discussion

I have read very conflicting things about undervolting; some say it doesn't do much at all, others say it's worth the effort. What most can agree on though, is that it depends on the phone, so I want to get some input to see if people have had success with it on the Fascinate. I tried a mild undervolt today and while I didn't notice much change with the screen on (while using it) I did notice it held a lot better charge while in stand-by. My settings as of right now are:
1200 MHz - 1300mV (-50)
1000 MHz - 1225mV (-50)
800 MHz - 1150mV (-50)
400 MHz - 950mV (-100)
200 MHz - 850mV (-100)
100 MHz - 850mV (-100)
I have been running the over / under volts for a while on different test builds with really good results...
I did do a live o/c for a while but have settled on normal o/c
My over / under settings as of right now are:
1200 mhz O/C
100 mhz minimum
1200 MHz - 1400mV (+50)
1000 MHz - 1325mV (+50)
800 MHz - 1250mV (+50)
400 MHz - 1025mV (-25)
200 MHz - 900mV (-50)
100 MHz - 875mV (-75)
------------------------
------------------------
But i have been wanting to test some other stuff too
I figured i would test this::
And see how it runs
1200 MHz - 1350mV (+00)
1000 MHz - 1275mV (+00)
800 MHz - 1200mV (+00)
400 MHz - 1000mV (-50)
200 MHz - 850mV (-100)
100 MHz - 850mV (-100)
sent from my swagger
aokp 10/22 test / devil kernel
Just curious, but what was your reasoning to raise the voltage? It seems like that would just be a battery drain because at those steps the stock voltage should be more than enough for stability.
I also don't Live OC but that's only because my phone will crash at 110% Live OC so I don't see the point in doing 105% Live OC... so I just do what you do and have 1200 MHz regular OC now
Crawshayi said:
Just curious, but what was your reasoning to raise the voltage? It seems like that would just be a battery drain because at those steps the stock voltage should be more than enough for stability.
I also don't Live OC but that's only because my phone will crash at 110% Live OC so I don't see the point in doing 105% Live OC... so I just do what you do and have 1200 MHz regular OC now
Click to expand...
Click to collapse
Just came from all the reading in the original devil ics thread...
Somebody 'Crack' ran these settings...
http://forum.xda-developers.com/showthread.php?t=1699141
It has so many great answers and Such great info,,, just realized i need to go back and read some more,,,
Think ... devil idle .... :thumbup:
sent from my swagger
aokp 10/22 test / devil kernel
From all the roms/kernels I ever ran on my fascinate undervolting did help slightly. It seems if I remember correctly that pulling -50uv across the board helped with battery life without decreasing stability. Anymore than that is when the random reboots started. Also disabling the 100mhz step made a big difference with SOD's and reboots.
Crawshayi said:
Just curious, but what was your reasoning to raise the voltage? It seems like that would just be a battery drain because at those steps the stock voltage should be more than enough for stability.
I also don't Live OC but that's only because my phone will crash at 110% Live OC so I don't see the point in doing 105% Live OC... so I just do what you do and have 1200 MHz regular OC now
Click to expand...
Click to collapse
You can do both a live oc (fsb overclock), and a regular overclock (multiplier overclock) at the same time. I use 110 live oc and a 200 mhz regular overclock giving me a total of 1320mhz. Set your live oc then use rom controlor whatever to do your regular overclock on top of it.

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