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overclocking

how do I overclock my vibrant safely without destroying it??

Terrance31 said:
how do I overclock my vibrant safely without destroying it??
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Try installing an overstock kernel, like Eugene373's Deadhorse Kernel, then you can download One Click Lag Fix from the market.

Just install a kernel that has oc capabilities and use set CPU to adjust the frequencies
Terrance31 said:
how do I overclock my vibrant safely without destroying it??
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I have overstock 2.2 with minimum at 400mhz and used spare parts to set windows to fast. This thing HAULS ASS!
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If he asks how to install an OC kernal I'm reporting this thread to be closed.

LOL
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after you have the oc kernel installed go into set cpu and set an audible alarm and for when your temp goes above 115 Fahrenheit, in that profile have it drop your clock speed down to 1000 or 800 to help your phone cool off before reactivating the full oc. Ive never had any problems with the cpu getting to hot oc'd to 1.2 thats not to say you wont.
Cheers

I don't think that overclocking and not destroying can be done at the same time.
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Terrance31 said:
how do I overclock my vibrant safely without destroying it??
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Flash it, set clock speed with setcpu or voltage control, cross your fingers and hope for the best.
Sent from my SGH-T959 using XDA Premium App

All you need is a kernel that supports OC ie. (DoW, Tigersblood, Overstock, Dragon) you should be golden but double check compatibility with whatever ROM ur running.
I use "set cpu" to torque it up to 1.2(or whatever the kernel OC's to) Then i use "SystemPanel Lite" to check and make sure its actually OCing. In the system app it has a CPU Clock in the top right corner which monitors ur current cpu. When the system app opens it has a list of active applications i simply move the list up and down repeatedly really fast and watch the "CPU Clock" if it maxes out at 1.2 or whatever its good to go. I remember one time(cant remember what kernel)but set cpu showed 1.2 or 1.4 and even in system CPU info it showed OCed but if you did like i just described the CPU Clock never went above 1000Mhz. Like it was just showing as OC even tho it really wasn't it was really weird the clock would max out at 1000Mhz with dead space above it like it could go over but never would.
shreddintyres said:
after you have the oc kernel installed go into set cpu and set an audible alarm and for when your temp goes above 115 Fahrenheit, in that profile have it drop your clock speed down to 1000 or 800 to help your phone cool off before reactivating the full oc. Ive never had any problems with the cpu getting to hot oc'd to 1.2 thats not to say you wont.
Cheers
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i never knew you could set audible alarms(guess i never really looked into it) thanks for that! running DoW221 OC to 1.4 i used to see my temps hit 120-130 it would freak me out! but never had any problems except for batt life avg 6-7hrs.
Personally my best OC ROM/kernel setup to this date has been MALICE[EDT]+Tigersblood(any release) everything works and great batt life for a OC kernel

Binary100100 said:
If he asks how to install an OC kernal I'm reporting this thread to be closed.
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LOL
funny

Just make sure you backup before trying. Some Vibrants cannot handle overclocking (and there's no real way to know until you try). Mine is one of those, and if it can't handle it, an Odin to stock will be in your immediate future.

GPU undervolting what app to use for this?

OK, so we have setcpu to undervolt. I'm doing this on my Note II and running 1600Mhz at 1200mV (all others -50mV) which I think is helping batter life. I watched an 1 1/2 movie and the battery only dropped 7% :highfive: Better than stock for sure
Anyone know of an app that will let us undervolt the GPU?
I remember there was tegrak, but the Note II is not supported. Also Stweaks or something?

Maybe have to wait untill all developers settle and get sourcecodes and other stuff...
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Hendrickson said:
OK, so we have setcpu to undervolt. I'm doing this on my Note II and running 1600Mhz at 1200mV (all others -50mV) which I think is helping batter life. I watched an 1 1/2 movie and the battery only dropped 7% :highfive: Better than stock for sure
Anyone know of an app that will let us undervolt the GPU?
I remember there was tegrak, but the Note II is not supported. Also Stweaks or something?
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Click to collapse
Is there anyway to undervolt the stock kernel?
Tegrak had that ability.. But I'd love to run undervolted stock kernel :/

Galaxy S3 overclocking

Hello guys. I just want to take information that there are many tweaks to overclock galaxy s3 to max 1.8 ghz. If we set to maximum overclocking then is there any risk for damage hardware? Because 2 months before i had nokia n8 & i set this device to overclock & it damaged all board,now its totally destroyed. According to my point of view,sometime i think that nokia n8 has only 680 ghz & due to overclock it run on higher clock speed & so that due to low processor it could not manage or handle the higher clock speed & it ran on heavy clock speed continuesly then overload of processor it got damaged. It is my fear for s3. And i think for s3 that it has higher processor with 1.4 ghz,if i set it to 1.8 ghz then there is no risk bcoz of there are cpu governor. With this,the s3 does not run continues on 1.8 ghz higher speed, governor takes control over the cpu to run on higher clock speed according to their high usage like 200 ghz, 500ghz, 800 ghz, 1.4ghz & so on. So i think i can overclock my galaxy s3 with kernel but I'm still confused & I'm not expert. So plz suggest me to do overclock without any damage fear. Thanx a lot.

If you don't know what you are doing, then don't do it!
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sfjuocekr said:
If you don't know what you are doing, then don't do it!
Sent from my GT-I9300 using xda app-developers app
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If i don't but you know then u can tell me about any risk.

NOTHING is without risk, but a good place to start is just to install the latest Siyah S3 Kernel and run it it at 1.6ghz for the CPU and default settings for the GPU. I tried running my CPU at 1.7 and 1.8 and the it wasn't 100% stable and the temps were to high for my liking. Be moderate in your settings and you shouln't encounter any issues.
http://www.gokhanmoral.com/ latest version is 1.7rc1
That will give you a good performance bump with the minimum of risk (in my opinion).
Other than that installing a bloatware free ROM will also give a nice bump. I personally run Omega V29 with the above 1.6 overclock settings and it lightning fast. :good:

There is always a risk involved in overclocking.
1.8ghz isn't stable for most people but 1.7 is quite stable.
How well your device handles overclocking depends on the quality of the chip you got.
This is down to the manufacturing process, you may get a good chip from the middle of the wafer or a not so good one from nearer the edge.
if you want to reduce heat them you should undervolt the CPU, less current means less heat.
Obviously it isn't good for the hardware in the long run but that's what you gotta take into account when you overclock, I've overclocked every phone I've ever had and haven't had any problems but YMMV.
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nodstuff said:
There is always a risk involved in overclocking.
1.8ghz isn't stable for most people but 1.7 is quite stable.
How well your device handles overclocking depends on the quality of the chip you got.
This is down to the manufacturing process, you may get a good chip from the middle of the wafer or a not so good one from nearer the edge.
if you want to reduce heat them you should undervolt the CPU, less current means less heat.
Obviously it isn't good for the hardware in the long run but that's what you gotta take into account when you overclock, I've overclocked every phone I've ever had and haven't had any problems but YMMV.
Sent from my Nexus 7 using xda premium
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could u plz tell me that what is the process of undervolt if i undervolt the cpu then it is related to only heat or performence also?

If you use siyah kernel then in the stweaks app that comes with it you can choose how much you want to undervolt.
I suggest starting with -25mv or -50mv and check stability.
I use -100mv without problems but like in said earlier YMMV.
It doesn't give a performance boost per se, but less heat in the chip will mean that it doesn't hit the temperature throttle threshold as easily and that means more performance.
The CPU will begin to throttle (limit clock speed) at around 75c until the temp drops and the CPU is allowed to run at max clock speed again.
Usually you will only hit the temp throttle threshold under very heavy loads, for example repeated benchmarks.
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mrjoy said:
Hello guys. I just want to take information that there are many tweaks to overclock galaxy s3 to max 1.8 ghz. If we set to maximum overclocking then is there any risk for damage hardware? Because 2 months before i had nokia n8 & i set this device to overclock & it damaged all board,now its totally destroyed. According to my point of view,sometime i think that nokia n8 has only 680 ghz & due to overclock it run on higher clock speed & so that due to low processor it could not manage or handle the higher clock speed & it ran on heavy clock speed continuesly then overload of processor it got damaged. It is my fear for s3. And i think for s3 that it has higher processor with 1.4 ghz,if i set it to 1.8 ghz then there is no risk bcoz of there are cpu governor. With this,the s3 does not run continues on 1.8 ghz higher speed, governor takes control over the cpu to run on higher clock speed according to their high usage like 200 ghz, 500ghz, 800 ghz, 1.4ghz & so on. So i think i can overclock my galaxy s3 with kernel but I'm still confused & I'm not expert. So plz suggest me to do overclock without any damage fear. Thanx a lot.
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1.7ghz should be alright for a 32nm chip like the exynos 4412 on our s3. HTC has had their One S (with a 45 nm chip) clocked at 1.7 ghz. The lower the nanoneter, the more ambitious you can be with clock speeds. Try 1.6 or 1.7 ghz with default voltage settings and see how that goes
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nodstuff said:
If you use siyah kernel then in the stweaks app that comes with it you can choose how much you want to undervolt.
I suggest starting with -25mv or -50mv and check stability.
I use -100mv without problems but like in said earlier YMMV.
It doesn't give a performance boost per se, but less heat in the chip will mean that it doesn't hit the temperature throttle threshold as easily and that means more performance.
The CPU will begin to throttle (limit clock speed) at around 75c until the temp drops and the CPU is allowed to run at max clock speed again.
Usually you will only hit the temp throttle threshold under very heavy loads, for example repeated benchmarks.
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You are using -100 undervolt, that mean its high current & mean if i select 25 to 50 then its less current than 100??? & is there any battery improvement if i select less current mean less heat.?

I am using -100mv, as in minus 100mv, 100mv less than stock.
Less current is less heat and *maybe* battery savings.
-100mv is less current than -50mv.
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nodstuff said:
I am using -100mv, as in minus 100mv, 100mv less than stock.
Less current is less heat and *maybe* battery savings.
-100mv is less current than -50mv.
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I am new to all this just one question, will over clocking drain the battery quicker?

andmax66 said:
I am new to all this just one question, will over clocking drain the battery quicker?
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Yes atleast while it's using the higher clock speeds.
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What's a good kernel for overclocking for the stock I9300 running ICS (don't have the JB yet)? Will the latest Siyah work?

DenethorLenwion said:
What's a good kernel for overclocking for the stock I9300 running ICS (don't have the JB yet)? Will the latest Siyah work?
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siyah, its most beginner friendly wih stweaks (for ICS you should check 1.5 version if its still obtainable, however should be)
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Antutu and Quadrant, all are just bull****. Just to see their manipulated scores, overclocking does not make any sense.
At ground level, applications do not run anything faster as overclocking alone does not work here. Even if you get milli milli milli second improvement which is just nothing against damage of CPU.
Got it?? now start using your phone as it should be and made for.

Before overclocking you should ask yourself Why you want to overclock. If it's because the phone have some lags there is other(safer) way to solve this problem. Honestly I overclock mine for a while (just because I'm a tester) but the S3 is fast enough for everything. You should see my S3. The app drawer appears (almost) instantaneously. Any games play smoothly etc...
On this phone overclocking is possible but useless. If you want to learn how to overclock just to learn how, search in the stickies for the overclocking guide.

I have tried overclocking and undervolting for the last week now and I can say that overclocking has not made any visible difference to my S3. Overclocking seems to be a nice option to have, but the S3 does not need it. Undervolting on the other hand reduces lag considerably when playing games for long periods. Usually my S3 started to get laggy after about 1 hour of Asphalt, but now it does not get laggy at all. I have undervolted by (-)125.
Hope that helps.

When I play pokemon black 2 on nds4droid without overclocking it gives me 20 to 30 fps and when I overclock it to 1.7 GHz i get 28 to 35 fps
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Firstly you need a kernel supporting overclocking... Secondly its fine if u wanna play around with your device... Lastly I would suggest u to overclock it to 1704 MHz max (avoiding any boot loops )....
I would recommend Siyah 1.9.1 (as your Kernel) and "Noop" as your I/O Scheduler... In case ure using Siyah as your Kernel, try using "Lulzactiveq" as your governer...
Furthermore u can tweak the governer if u want more juice out of it....
Try it.....
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---------- Post added at 10:50 PM ---------- Previous post was at 10:41 PM ----------
Mr Faeces said:
I have tried overclocking and undervolting for the last week now and I can say that overclocking has not made any visible difference to my S3. Overclocking seems to be a nice option to have, but the S3 does not need it. Undervolting on the other hand reduces lag considerably when playing games for long periods. Usually my S3 started to get laggy after about 1 hour of Asphalt, but now it does not get laggy at all. I have undervolted by (-)125.
Hope that helps.
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Click to collapse
Lag can be reduced by tweaking your governer and some other settings... U don't have to underclock it...
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I have tried overclocking to1600, and although Quadrant stats are higher, I did not notice any difference in normal usage. I am a general usage text and phone calls and email user. Minimal game playing. I stick to 1400 now and everything seems just the same!!
At the moment I am running Sotmax rom and boeffla kernel.
Hope this helps.

How safe is overclocking?

I am experiencing lag on real racing 3, on high graphics. If I overclock to say 2ghz on cpu, will the tablet be stable enough? Should I undervolt ( and does it actually make any difference on temps)? I want to overclock but not at the cost of huge battery drain, can some1 recommend me a good kernel and some stable oc steps?
Sent from my Nexus 10 using Tapatalk HD

lvnatic said:
I am experiencing lag on real racing 3, on high graphics. If I overclock to say 2ghz on cpu, will the tablet be stable enough? Should I undervolt ( and does it actually make any difference on temps)? I want to overclock but not at the cost of huge battery drain, can some1 recommend me a good kernel and some stable oc steps?
Sent from my Nexus 10 using Tapatalk HD
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Are you running a custom ROM and kernel? I play RR3 daily and have NO lag. AOKP PUB ROM with ktmanta kernel, at 1.7mhz CPU and GPU OC to 720. Runs great.
Most OC is safe, issues are really with battery and overheating. I've run for long periods at 1900 just fine.

So there's no way the tablet will melt down because of the heat? Does warranty cover that? Assuming they don't know it was overclocked, which they couldn't because the device would be dead, right? I guess they don't bother to repair it and see if it was rooted.
LE: btw did you manage to safely undervolt? Even a -5 gives me reboots on most freqs.

Any time I try to use the app from the store to set the graphics mode it causes problems. Running RR3 without it works fine.

lvnatic said:
So there's no way the tablet will melt down because of the heat? Does warranty cover that? Assuming they don't know it was overclocked, which they couldn't because the device would be dead, right? I guess they don't bother to repair it and see if it was rooted.
LE: btw did you manage to safely undervolt? Even a -5 gives me reboots on most freqs.
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Click to collapse
Take a look at the KTmanta thread. KTmanta is a great option for what you are after, he notes and codes distinctions between clocking and thermal protection, plus unless you lock the settings, they will reset at reboot!
If you tell Google you messed it up from some sort of tinkering, no - they won't help you.

lvnatic said:
So there's no way the tablet will melt down because of the heat? Does warranty cover that? Assuming they don't know it was overclocked, which they couldn't because the device would be dead, right? I guess they don't bother to repair it and see if it was rooted.
LE: btw did you manage to safely undervolt? Even a -5 gives me reboots on most freqs.
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Click to collapse
I am assuming you must be using the KTmanta kernel right? I thought it was the only kernel right now that allows for user control undervolting. Trinity has a static -50mv value set on all frequencies by default. You should be able to undervolt just about everything. Getting lockups at -5mv lets me think there is something you are not doing correctly
EDIT: threw the quote in so its less confusing

EniGmA1987 said:
I am assuming you must be using the KTmanta kernel right? I thought it was the only kernel right now that allows for user control undervolting. Trinity has a static -50mv value set on all frequencies by default. You should be able to undervolt just about everything. Getting lockups at -5mv lets me think there is something you are not doing correctly
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Yes, the kernel
Edit: oops thought you were asking me, I see now I was confused.

Galaxy S Android 4.4 Unstable overclock

Hi there,
I want to get the most performance out of my old galaxy s but i have a slight problem with 4.4.
I came from Slimbean android 4.3 on 1.2ghz because it worked really slow and gave me alot of problems.
I first flashed (After full wipe) to Mackay 4.4 rom but whatever govenor or sheduler i am using it crashes everytime after a minute or so doing some simple tasks from the slightest overclock (1.1 ghz).
So i flashed to CyanAOSP (full wipe) to see if it would fix the problem but the problem still exist on this rom :c
Is there something wrong with my device?
Greetings,
- Merlin

Taking the phone to pieces and applying thermal compound to the chips gave me another 100Mhz. (rock solid at 1200Mhz when 3D gaming etc). There are 2 chips underneath the motherboard, and if you remove the sim tray from the board there are another few under there. I did them all. Be very careful if you're using Arctic Silver. I would have preferred to use the cheap white stuff but I didn't have any. There is a thread if you search for it with instructions on how to do this if you need it.
And with overclocking there's an element of luck. There are variations in the manufacturing of the chips themselves which can make your particular phone good (or useless) for overclocking.
Sent from my GT-I9000 using Tapatalk

knuckles1978 said:
Taking the phone to pieces and applying thermal compound to the chips gave me another 100Mhz. (rock solid at 1200Mhz when 3D gaming etc). There are 2 chips underneath the motherboard, and if you remove the sim tray from the board there are another few under there. I did them all. Be very careful if you're using Arctic Silver. I would have preferred to use the cheap white stuff but I didn't have any. There is a thread if you search for it with instructions on how to do this if you need it.
And with overclocking there's an element of luck. There are variations in the manufacturing of the chips themselves which can make your particular phone good (or useless) for overclocking.
Sent from my GT-I9000 using Tapatalk
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But why could it do 1.3 ghz on android 4.3 easily? I think it has nothing to do with heat atm.
Because sometimes i can run antutu for 2 times in a row before it crashes. But sometimes it crashes instantly when i press the start button.

MerlijnD said:
But why could it do 1.3 ghz on android 4.3 easily? I think it has nothing to do with heat atm.
Because sometimes i can run antutu for 2 times in a row before it crashes. But sometimes it crashes instantly when i press the start button.
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Click to collapse
It's kernel related issues. I managed to clock in at 1.6Ghz rock stable on CM 10.2 but likewise, a 1.2Ghz overclock on 4.4 is giving me very rear soft reboots

MrAndroid12 said:
It's kernel related issues. I managed to clock in at 1.6Ghz rock stable on CM 10.2 but likewise, a 1.2Ghz overclock on 4.4 is giving me very rear soft reboots
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Click to collapse
Ah ok now that i know that, its probably going to get fixed sooner or later

Interesting. Mine is stable at 1.2Ghz on 4.4, so I'll be trying to push it a bit more when I get new kernels. I put Arctic Silver on all the chips the other day, even the ones under the sim card tray so hopefully that will help it. It has defo done something because my phone was unstable at 1.2Ghz before I did it.
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knuckles1978 said:
Interesting. Mine is stable at 1.2Ghz on 4.4, so I'll be trying to push it a bit more when I get new kernels. I put Arctic Silver on all the chips the other day, even the ones under the sim card tray so hopefully that will help it. It has defo done something because my phone was unstable at 1.2Ghz before I did it.
Sent from my GT-I9000 using Tapatalk
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I just flashed to semaphore kernel on mackay rom and it is fully stable on 1.3 ghz atm.

Is there a 4.4 semaphore kernel?
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Guys , every kernel has its own custom voltages for over clocking . just use an app that controls the voltage (you can find one in play store ) and increase the voltage step by step until your phone is stable. For example : on Mackay I can't over clock not even to 1100 MHz with stock voltages without the phone rebooting after a few seconds but on Semaphore I can oc with stock voltages up to 1200MHz and its stable . on Mackay I messed around with higher voltages until I found the ones that my phone is happy with and I could oc up to 1300 MHz stable after that.
knuckles1978 said:
Is there a 4.4 semaphore kernel?
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Click to collapse
Yes there is , check the Semaphore thread for 3.4.0
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I didn't realise that voltages were set in a kernel. Thanks
Do you know what voltages I should be using for a 1300 or 1400 overclock? I'm sitting stable at 1200 at the moment, how much do you think I should raise the voltage to keep it stable with another 100 or 200 MHz increase?
Edit: I'll try the 4.4 semaphore kernel
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I personally use these settings:
Frequency - CPU - Int
1000MHz - 1225 - 1100
1200MHz - 1300 - 1100
1300MHz - 1350 - 1100
1400MHz - I've never got stable 1400MHz OC :/ (I think 1400 1150 should be right for most devices)
Optional:
1100MHz - 1250 - 1100 (some kernels have this step)

Thanks again, that's me running rock stable even under gaming at 1.3Ghz. Not tried 1.4.......yet lol
Why is there two voltage values you gave for each clock speed though?
I used setcpu, and set the first value. I'm not sure what the other value you gave is? GPU voltage?? Thx

knuckles1978 said:
Thanks again, that's me running rock stable even under gaming at 1.3Ghz. Not tried 1.4.......yet lol
Why is there two voltage values you gave for each clock speed though?
I used setcpu, and set the first value. I'm not sure what the other value you gave is? GPU voltage?? Thx
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Click to collapse
Second value is internal voltage (mostly used with LiveOC to stabilize as it gives voltage to GPU and RAM). With normal OC it should be at stock (1100mV). Some apps, like NSTools gives you opportunity to change those.
Normal OC affects CPU, and liveOC CPU, GPU, RAM, so it's more likely to be unstable. I can't reach 1100 on LiveOC, but on normal I have 1300 easily.

midnight911 said:
Second value is internal voltage (mostly used with LiveOC to stabilize as it gives voltage to GPU and RAM). With normal OC it should be at stock (1100mV). Some apps, like NSTools gives you opportunity to change those.
Normal OC affects CPU, and liveOC CPU, GPU, RAM, so it's more likely to be unstable. I can't reach 1100 on LiveOC, but on normal I have 1300 easily.
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Ah well i am using stock voltages from semaphore kernel and 130% live oc. It is fully stable atm.

MerlijnD said:
Ah well i am using stock voltages from semaphore kernel and 130% live oc. It is fully stable atm.
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Click to collapse
Heh there are no two same devices. One overclocks better and one at all. There are devices which can't be overclocked. It's just luck you have with your hardware.