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Since this is a popular topic and since MSNBERG requested that i make this, i have decided to make it.
THE GUIDE TO UNDERVOLTING
What you will need:
PREFERABLY the application Tegrak OVERCLOCK PAID! can also use set cpu
TEGRAK
LOAD THE OVERCLOCK MODULE
go into the "TWEAKS" section and be sure to select DEADLINE as your scheduler!!!
you will see the option "OPTIMIZATION" go there
now you will see 5 levels to customize
ONLY LEVEL 0 CAN YOU CUSTOMIZE EVERYTHING
Now if you only want to undervolt with no overclock here is the chart you need to use ON GINGERBREAD:
UNDERVOLT SETTINGS
level0 - 1000 - 1155 - 1065 -------this level can change frequency but volts need to change as well
level1 - 800 - 1040 - 1035
level2 - 400 - 955 - 960
level3 - 200 - 835 - 950
level4 - 100 - 825 - 930
once you enter these in you can go to tegraks main menu and go into "PROFILE" and you can save your current settings or choose previous ones.
Here are some overclock values you can use for level 0
LEVEL 0 1100 1100 1090
LEVEL 0 1200 1195 1095
LEVEL 0 1300 1295 1115
LEVEL 0 1400 1315 1125
LEVEL 0 1500 1375-85 1150
LEVEL 0 1600 1400 1175-1200
***THIS WILL BE UPDATED WITH MORE INFO SOON
In my best Mr. Burns voice: Excellent!
Always wanted a undervolting guide. Nice!
:C my phone reboots with these undervolt values for some reason. I'm running Valhalla 1.1(haven't has the time to update and don't have wifi so...) and adrenaline shot X. I also have stability checker off so I'm sure that's not the issue. Its fine at first but then rebootes once I start mulititasking like listening to music, texting and getting on Facebook at the same time. Seems to work fine for everyone else so I don't get what's going on
Sent from my SGH-T959V using XDA App
icy56 said:
:C my phone reboots with these undervolt values for some reason. I'm running Valhalla 1.1(haven't has the time to update and don't have wifi so...) and adrenaline shot X. I also have stability checker off so I'm sure that's not the issue. Its fine at first but then rebootes once I start mulititasking like listening to music, texting and getting on Facebook at the same time. Seems to work fine for everyone else so I don't get what's going on
Sent from my SGH-T959V using XDA App
Click to expand...
Click to collapse
What governor and scheduler.are.you using
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I'm using ondemand as the governor. I have no idea what a scheduler is.
*edit*
The io scheduler? Well its set to cfq.
Sent from my SGH-T959V using XDA App
Thanks a lot for this. I have been looking forward to this guide! Awesome work again Dsexton
icy56 said:
I'm using ondemand as the governor. I have no idea what a scheduler is.
*edit*
The io scheduler? Well its set to cfq.
Sent from my SGH-T959V using XDA App
Click to expand...
Click to collapse
Change cfq to deadline
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jager555 said:
Change cfq to deadline
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Click to expand...
Click to collapse
THANK YOU!!!! its finnaly working. Haven't had a single reboot yet. You sir just saved me a trip to T-Mobile. I thought there was something wrong with my phone since I was the only one getting that issue.
Sent from my SGH-T959V using XDA App
jager555 said:
Change cfq to deadline
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Click to expand...
Click to collapse
Thats what I was going to say, good job
Sent from my SGH-T959V using XDA Premium App
thanks dexter like always!!
Sent from my SGH-T959V using XDA App
Hi guys,
Sorry for the rookey questions, but :
1. Do I need to install TegraK kernel ? If so, before or after installing TegraK overclock ?
2. Will TegraK OC free version do, or i need the paid version ? what's the difference ?
3. ICY56 - I'm having the exact configuration you have (Valhalla 1.1 and Adrenaline ShotX) can you please explain what changes you noticed regarding battery consumption, and doesn't it affect your phone responsiveness, stability and performance ?
Thanks,
Itzik.
Answers
1) Tegrak will work fine with valhalla, most (if not every) custom rom has the needed kernel already.
2) You need the paid version because free version only allows overclock up to 1.3 you cant adjust anything else.
3) I can't answer as I'm not set up the same, but from my understanding you shouldn't see any negative affects, just increased battery life.
Every time I try to undervolt my phone. It reboots constantly. Even with ICBINB KJ1. Scheduler is set to deadline and governor is set to ondemand. What am I doing wrong?
itzik2sh said:
Hi guys,
3. ICY56 - I'm having the exact configuration you have (Valhalla 1.1 and Adrenaline ShotX) can you please explain what changes you noticed regarding battery consumption, and doesn't it affect your phone responsiveness, stability and performance ?
Thanks,
Itzik.
Click to expand...
Click to collapse
Well I haven't noticed a decrease in performance and stability. The phone actually feels the exact same. As for bettery life, I can't really comment on that yet since I'm in the process of recalibrating my battery and I haven't been on UV long enough to say but so far battery life seems to be a little better
Sent from my SGH-T959V using XDA App
Nice work... tried and works .... 1600mhz looks like unstable in phone....
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wizardslovak said:
Nice work... tried and works .... 1600mhz looks like unstable in phone....
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Click to expand...
Click to collapse
It can be stable you just need to up voltages a lil more
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dsexton702 said:
It can be stable you just need to up voltages a lil more
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Click to expand...
Click to collapse
Well ill play with it more.... usually ill get restarts within few seconds of setting up new parms... thx again...
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Even if I increase voltage it still freezes and then restarts phone @ 1600mhz
Sent from my SGH-T959V using XDA App
I've had 1664 mhz before stable. It can ne done, every phone will be different with what voltages work. experiment a little. But I wouldn't go to high, don't want a $500 paperweight.
@ 1.3 GHz, this phone its rock solid, so anything higher is over kill imo.
Sent from my SGH-T959V using xda premium
Hey guys will overclocking drain the battery quicker even with stock voltages?
Sent from my Nexus S using XDA Premium App
Different voltages are specified as stock for different frequencies. As the frequency changes, the voltage does too. Running 1200mhz with the stock 1000mhz voltage will probably cause instability and crashing.
Harrb, great post.
Sent from my Nexus S 4G using XDA App. Developer of brickROM, and OP of XDA Thread of The Year 2011.
And if increase voltage, the power consumption should also increase.
i haven't played with voltages yet but in my experience the benefits of overclocking are minimal anyway, and they make nexus reboot often and other bad things :/
With the right settings you can get a fully stable and functional overclock, but it is on a per-phone basis due to varying quality of the same CPU during manufacture.
Harbb said:
Different voltages are specified as stock for different frequencies. As the frequency changes, the voltage does too. Running 1200mhz with the stock 1000mhz voltage will probably cause instability and crashing.
Click to expand...
Click to collapse
Currently I'm using icup kernel speedy 5 clocked at 1.4 and its been extremely stable. So what your saying is that the voltages automatically increase when I select a higher frequency, because I did not change them manually.
Sent from my Nexus S using XDA Premium App
xmatrix13 said:
Currently I'm using icup kernel speedy 5 clocked at 1.4 and its been extremely stable. So what your saying is that the voltages automatically increase when I select a higher frequency, because I did not change them manually.
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
Open NSTools and select Voltage tab. That's the list of "stock" voltages for each frequency.
suksit said:
Open NSTools and select Voltage tab. That's the list of "stock" voltages for each frequency.
Click to expand...
Click to collapse
Thanks
Sent from my Nexus S using XDA Premium App
A CPU governor such as on demand, lulzactive and lazy tells the CPU what clock to be at and automatically change. While reading, it will be at 100 or 200mhz, while playing a game it will be at the maximum clock you tell it to. Saves power this way.
your asian said:
i haven't played with voltages yet but in my experience the benefits of overclocking are minimal anyway, and they make nexus reboot often and other bad things :/
Click to expand...
Click to collapse
yes, usually 1 GHz is enough , UV or OC also may reduce hardware's physical life
Is this a bug in the rom, or is it safe?
It's constantly running on the OC of 1500MHz.
Usually the cpu is meant to scale down when idle. Not the case here.
Thanks
Are you using setCPU, system tuner, or any user app to OC?
Sent from my HTC Pyramid using xda premium
stringer7 said:
Are you using setCPU, system tuner, or any user app to OC?
Sent from my HTC Pyramid using xda premium
Click to expand...
Click to collapse
It's OC'd out of the box
I just downloaded and run CPU MASTER FREE and it shows constant 1500MHz reading.
I think I will have to depart from this ROM (even though it's very good). I am assuming it will kill the already week battery
benyben123 said:
It's OC'd out of the box
I just downloaded and run CPU MASTER FREE and it shows constant 1500MHz reading.
I think I will have to depart from this ROM (even though it's very good). I am assuming it will kill the already week battery
Click to expand...
Click to collapse
Try another CPU controller like system tuner, setcpu or no frills. Its not the roms fault.
Sent from my Sensation running Hypernonsense
benyben123 said:
It's OC'd out of the box
I just downloaded and run CPU MASTER FREE and it shows constant 1500MHz reading.
I think I will have to depart from this ROM (even though it's very good). I am assuming it will kill the already week battery
Click to expand...
Click to collapse
and even if u r using cpu master free , just make sure that its on Ondemand , n everything wll b just fine
I'm Using razodroid v4.0 and it's great but i need more battery saving so ,,
what are the best settings for no frills ?
my defaults are ..
max 600
min 245
governor : ondemand
i/o scheduler : noop
thanks in advance pls reply soon
Battery saving best is 600 245 power save and sio
dont use powersave! you'll face a lot of lags and re-boots!
use set cpu instead of no-frills.
min:245 max:480 (use 600 if ur rom lags but 480 is enough for me )
governor:smartassv2 (actually lulzactive is best for battery life but you wont find it in galaxy fit roms :/)
i/o:sio
now in set cpu go to profiles section. Create new profile, choose "SCREEN OFF" and set min:122 and max:245 governor: ondemand priority:50
but disable profiles if you listen to songs with headphones.
But bro I read in.forum that never lower than 245 mhz
androidnandroid said:
But bro I read in.forum that never lower than 245 mhz
Click to expand...
Click to collapse
huh? why so? and where exaclty you read it??
becouse they use same battery , eaven sometime 122 use more, and phone is realy slow opening afther locked on 122 . btw no need to set cpu profiles when using smartassv2 or lilgv2 because they have it own sleeping profile .
i read that if below 122 your phone cant overcome that frequency and if your phone on dead sleep than your phone wud me not reacheble or will show people calling as switchof...and if difference of frequency is more than more battery consumption check xda search about io and governor a guy explained every io and governor...check that
---------- Post added at 07:42 PM ---------- Previous post was at 07:41 PM ----------
djozaa said:
becouse they use same battery , eaven sometime 122 use more, and phone is realy slow opening afther locked on 122 . btw no need to set cpu profiles when using smartassv2 or lilgv2 because they have it own sleeping profile .
Click to expand...
Click to collapse
you are exactly right bro...
My fave Nofrills setting :
Gov : Smartassv2
I/O : Vr
Min 245 max 600.
Still using it until now...
Sent from my GT-S5570 using Tapatalk 2 Beta-5
vr better or sio???
Sio is better. Then deadline and noop. Btw sio maybe give slight less benchmark score. But it doesent matter
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thanx bro
i don't have smartassv2 but i have smartass :/
thanks guys
U got maybe lilgv2 ? That is moded smartasv2 for mini/fit by squadzone.
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djozaa said:
U got maybe lilgv2 ? That is moded smartasv2 for mini/fit by squadzone.
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Click to expand...
Click to collapse
yes i have lilgv2 is it good ?
Yes
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Sio is good for benchmarking...
But I like Vr more because it so fast when you try to open any apps...
Just try n see...
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hmmm...ok bro will review it for 1 day
cygnus39 said:
Sio is good for benchmarking...
But I like Vr more because it so fast when you try to open any apps...
Just try n see...
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Click to expand...
Click to collapse
so my current settings now are
600
245
lilgv2
vr
i'll feedback next hours
I still sugest sio over anything. It has been proven that is best overall performance and battery
Sent from my GT-S5670 using Tapatalk 2
no frills
What is the best no frills setting for fast downloads
Hi Guys,
I've been using custom kernel/ROM for sometimes now, and I hear a lot about overclocking.
And I know that overclocking is "not so good" for the phone. Was wondering whether the same applies for under-clocking also.
Oh, and 1 more question is about decreasing just the "Minimum CPU frequency" to something like 245MHz. Will that be bad for the phone?
neo4u said:
Hi Guys,
I've been using custom kernel/ROM for sometimes now, and I hear a lot about overclocking.
And I know that overclocking is "not so good" for the phone. Was wondering whether the same applies for under-clocking also.
Oh, and 1 more question is about decreasing just the "Minimum CPU frequency" to something like 245MHz. Will that be bad for the phone?
Click to expand...
Click to collapse
Our phone support overclocking to 729 max and min 320 if you underclock it your phone will be laggy and not responding . Those frequencies are the best for it and will not harm your phone.
Sent from my LG-P500 using Tapatalk 2
Christian Nothing said:
Our phone support overclocking to 729 max and min 320 if you underclock it your phone will be laggy and not responding . Those frequencies are the best for it and will not harm your phone.
Sent from my LG-P500 using Tapatalk 2
Click to expand...
Click to collapse
ya i know underclocking will definitely reduce performance. What if I keep the Max freq as 600MHz and reduce the Min freq to 245MHz. I just want to know whether it will harm my phone or not.
neo4u said:
ya i know underclocking will definitely reduce performance. What if I keep the Max freq as 600MHz and reduce the Min freq to 245MHz. I just want to know whether it will harm my phone or not.
Click to expand...
Click to collapse
No it will not harm your phone!
I'm using oc since the first week I owned my phone and it's running fine.So, min freq:480(it use the same freq as lower clocks and reduces wakelocks) and max:600 or more
Sent from my LG-P500 using xda premium
FPChaim said:
I'm using oc since the first week I owned my phone and it's running fine.So, min freq:480(it use the same freq as lower clocks and reduces wakelocks) and max:600 or more
Sent from my LG-P500 using xda premium
Click to expand...
Click to collapse
Actually the point of underclocking is to use a different frequency, 245 will use a lower frequency than 480. Also, frequency has absolutely nothing to do with wakelocks, 122 will have the same number of wakelocks as 806. You should set the minimum to whatever works for you, some people like 245, some people like 320, some people like 480. Underclocking can't damage the phone, so use whatever works for you.
bluespoon4 said:
Actually the point of underclocking is to use a different frequency, 245 will use a lower frequency than 480. Also, frequency has absolutely nothing to do with wakelocks, 122 will have the same number of wakelocks as 806. You should set the minimum to whatever works for you, some people like 245, some people like 320, some people like 480. Underclocking can't damage the phone, so use whatever works for you.
Click to expand...
Click to collapse
Are you sure...?Take a look on what fserve posted in his kernel thread:" NOT underclock below 480MHz. At lower speeds, wakeups-from-idle per second are bigger than 480MHz and they share the same voltage, so thats leads to more battery drain. It's recomended to use: MIN 480 / MAX YOUR CHOICE more about it: http://forum.xda-developers.com/showthread.php?t=999064 and here: http://forum.xda-developers.com/show...2&postcount=22"
Edit:link to his thread:http://forum.xda-developers.com/showthread.php?t=1227682
Edit 2ne link is broken and the other got abbreviated so you have to visit his thread
Sent from my LG-P500 using xda premium
FPChaim said:
Are you sure...?Take a look on what fserve posted in his kernel thread:" NOT underclock below 480MHz. At lower speeds, wakeups-from-idle per second are bigger than 480MHz and they share the same voltage, so thats leads to more battery drain. It's recomended to use: MIN 480 / MAX YOUR CHOICE more about it: http://forum.xda-developers.com/showthread.php?t=999064 and here: http://forum.xda-developers.com/show...2&postcount=22"
Edit:link to his thread:http://forum.xda-developers.com/showthread.php?t=1227682
Edit 2ne link is broken and the other got abbreviated so you have to visit his thread
Sent from my LG-P500 using xda premium
Click to expand...
Click to collapse
I have been using MIN FREQ 245 for the past two days., and I got a better battery life
neo4u said:
I have been using MIN FREQ 245 for the past two days., and I got a better battery life
Click to expand...
Click to collapse
I'm using min freq 480 and my phone sleep very well too
Sent from my LG-P500 using xda premium
I use setcpu to set the clock to 122 - 320 while the screen is off and the phone sleeps very well but sometimes it freezes when I wake it up so I had to change it to 245 - 320 and evertyhing is fine now.