Hi, i'm an italian user and I don't understand something about live oc in some threads. I read that Live Oc isn't compatible with Jellybean, but in other post someone said that this problem is fixed... but there isn't JB kernel that has it! ... so, i will ask you what is the real situation.
Why I ask this? ..becouse my Nexus S reboot with 1200 OC and lag with standard clock... so 1100 Mhz are perfect for me
oh, sorry for my english guys.
I don't believe there is live oc anymore. I'm with you 1200 isn't good for me, but 1100 is
Sent from my Nexus S
Hoping to see liveoc feature even in JB kernels! :laugh:
i used to have 110% liveoc with stock voltages and max freq 1000->1100!
Try rising your voltage to 1375 or 1400 at 1.2 ghz
Galaxy S4 9500 onlyStandard Disclaimer: Im not responsible if something wrong happens to your device Read the guide as much as you want before proceeding with overclocking
Overclocking and undervolting is highly debatable, some say its good and some say its bad... so its upto you to decide and proceed further
First rule of overclocking.. Your Mileage May Vary
Most of the people here in xda do know about overclocking and stuffs but still there are many who are so eager to overclock their device . Hence this guide.
I have given some good info below about these stuffs as far as i can , you can always use google to get further details.
What is overclocking?
Overclocking is the process of making a computer or component operate faster than the specified clock frequency by the manufacturer by modifying system parameters. One of the most important techniques is running at a higher clock rate (more clock cycles per second; hence the name "overclocking")
Operating voltages may also be changed (increased), which can increase the speed at which operation remains stable.
Advantage:
You can get more performance from your chipset, though s4 is already fast you can see the visible changes in application execution time and much more like instant response time.
Disadvantage:
* Overclocking is always risky if something is configured improperly and may also result in permanent damage to your hardware. As long as it is done safely you are good to go.
* You may see some increased power consumption.
* Extreme overclocking might kill your hardware.
Undervolting :
The process where you provide less voltage to your cpu rather than the stock voltage.
Advantage:
* Reduced heat from your device.
* Good battery life.
Disadvantage:
* Extreme undervolting will make your device unstable and some times even end up with a boot loop.
Apart from the voltage table defined below for exynos the below mentioned data are common for 9500/9505
Overclocking in Exynos Octa:
Exynos 5410 is already one among the best performing chipset available, so overclocking this device is not going to give us any visible performance improvements except the benchmark scores. Underclocking is a different story on 9500, since the cpu temperature easily reaches upto 90C (90C is the throttle temperature defined for this device in the kernel, so its normal) undervolting the device will help in reducing the overall temperature of the device considerably. I highly recommend undervolting the device instead of overclocking it.
Exynos 5410 has 2 cpu clusters, stock voltages and available steppings are given below
Little Cores (A7) stock voltages
Code:
[B]STWEAKS[/B]
1200mhz : 1225mv
1100mhz : 1125mv
1000mhz : 1100mv
900mhz : 1037mv
800mhz : 987mv
700mhz : 950mv
600mhz : 950mv
500mhz : 950mv
400mhz : 950mv
300mhz : 950mv
200mhz : 950mv
Samsung divides the actual clock of a7 by 2 while displaying the steppings in order to accommodate the big little way of displaying values. Stweaks will show you every available steppings like above whereas most other cpu tuning apps show it like below, both are same though. stweaks @ 800mhz is equal to other tuning apps @ 400mhz
Code:
[B]OTHER CPU TUNING APPS[/B]
700mhz : 1225mv
550mhz : 1162mv
500mhz : 1100mv
450mhz : 1037mv
400mhz : 987mv
350mhz : 950mv
300mhz : 950mv
250mhz : 950mv
200mhz : 950mv
150mhz : 950mv
100mhz : 950mv
Big Cores (A15) stock voltages
Code:
2000mhz : 1250mv
1900mhz : 1250mv
1800mhz : 1250mv
1700mhz : 1200mv
1600mhz : 1162mv
1500mhz : 1137mv
1400mhz : 1100mv
1300mhz : 1062mv
1200mhz : 1025mv
1100mhz : 1000mv
1000mhz : 962mv
900mhz : 925mv
800mhz : 900mv
Though the cpu frequency table has steppings upto 2ghz the max stable clock i have seen so for on s4 is 1800mhz.
Requirements:
1. Kernel with overclocking/undervolting support.
2. stweaks or android tuner to change frequency/voltage.(you can use the app of your choice here).
3. set cpu and stability test to test the stability of CPU.
4. Some patience.
The below mentioned steps are common for 9500/9505
Step 1:
Set the current clock and voltage you want to test via android tuner/stweaks. (Select max frequency in cpu tab).
Example:
*If you want to test under volting for 1.4 ghz with 1050 mv (1100 is the default) then set 1.4 ghz as max clock and 1050mv as its voltage.
*If you want to test overclocking @ 1.7 ghz with 1150 mv (1200 is the default) then set 1.7 ghz as max clock and 1150 mv as its voltage.
Step 2:
Open set cpu's cpu stress test and run it for atleast 10 minutes. If you didnt get any errors or hang during the testing period and if the test completed successfully then the clock is ready for daily use
Step 3:
Now for undervolting use the same tools and reduce the voltage by -25mv.
Repeat step 2.
you can reduce the voltage further by -25 mv after every successful completion of stress test (Advanced users can try reducing -50mv )
Step 4:
Repeat step 1,2 and 3 for every possible cpu clock you see in android tuner/stweaks.
Note the stable cpu voltage for every clock, once you finish testing all your clock values save it as a profile and/or set it on boot.
Voila !!! now you have finished overclocking/ under voting your device.
Notes:
1. Never ever use set on boot option until you find the stable clock and voltage settings.
2. Not all chips are capable of running at higher speeds like 1800 mhz. Those speeds are highly experimental.
3. Recommended max overclocking is 1700 mhz.
4. If your device gets hotter allow the device to cool for few minutes before starting the test.
5. Either use stweaks or android tuner(or some other app), dont mix up.
6. Combining the overclocking and undervolting will give you the best of both the worlds
In case of emergency:
1. If your device becomes unstable and not responsive either press the power button until your device restarts or pull out your battery.
2. Android tuner has an option to create flashable zip for resetting the voltage table, use it if needed.
*********************Do note me if any information is incomplete or wrong ill change it.*******************************
Credits :
* wikipedia
* @AndreiLux and @wanam for their outstanding work on kernel development
Reserved for GPU
One more for some other if needed
I realize the thanks icon is there in order to prevent thanks spam.... however today I can not restrain myself.. thank you bala for this contribution
¡¡So say we all!! from Battlestar GT-I9500
well written and elaborate..thanks
thanks for the valuable input, but i differ on one thing. am using a 2Ghz overclock and is rock stable. using the GPU in the highest clock too....am attaching the STweaks values, battery and antutu score for the same. the device runs very cool too...hope this helps somone.
I do not know if am I doing it right or doing it wrong, but my phone runs without the (very occasional) hiccups and is as cool as it can be....and dat wat metters to me
thanks and regards,
Achyut.
P.S. - I resized the FHD screenshots to 25% for easy uploading.
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achyut said:
thanks for the valuable input, but i differ on one thing. am using a 2Ghz overclock and is rock stable. using the GPU in the highest clock too....am attaching the STweaks values, battery and antutu score for the same. the device runs very cool too...hope this helps somone.
I do not know if am I doing it right or doing it wrong, but my phone runs without the (very occasional) hiccups and is as cool as it can be....and dat wat metters to me
thanks and regards,
Achyut.
P.S. - I resized the FHD screenshots to 25% for easy uploading.
Click to expand...
Click to collapse
Thank you very much!! Only wanted to ask about the 800mHz and 900mHz volts of the little cores since it's not shown in the screenshots. Thanks. :good:
noideaforusername said:
Thank you very much!! Only wanted to ask about the 800mHz and 900mHz volts of the little cores since it's not shown in the screenshots. Thanks. :good:
Click to expand...
Click to collapse
oops...sorry...here,
achyut said:
thanks for the valuable input, but i differ on one thing. am using a 2Ghz overclock and is rock stable. using the GPU in the highest clock too....am attaching the STweaks values, battery and antutu score for the same. the device runs very cool too...hope this helps somone.
I do not know if am I doing it right or doing it wrong, but my phone runs without the (very occasional) hiccups and is as cool as it can be....and dat wat metters to me
thanks and regards,
Achyut.
Click to expand...
Click to collapse
hmm, with 400Mhz more You have same results as stock? something is wrong, maybe settings do not apply or overheating is causing cpu throttling down so scores are so low.
Kriomag said:
hmm, with 400Mhz more You have same results as stock? something is wrong, maybe settings do not apply or overheating is causing cpu throttling down so scores are so low.
Click to expand...
Click to collapse
Every chips has different mileage, even if his chip runs at 2ghz, it will throttle down in very few seconds.
Sent from my GT-I9500 using Tapatalk 4 Beta
achyut said:
thanks for the valuable input, but i differ on one thing. am using a 2Ghz overclock and is rock stable. using the GPU in the highest clock too....am attaching the STweaks values, battery and antutu score for the same. the device runs very cool too...hope this helps somone.
I do not know if am I doing it right or doing it wrong, but my phone runs without the (very occasional) hiccups and is as cool as it can be....and dat wat metters to me
thanks and regards,
Achyut.
P.S. - I resized the FHD screenshots to 25% for easy uploading.
Click to expand...
Click to collapse
Which Kernel are u using??? I assume ure using Perseus 4... Ive heard and read on some forums that ver 4 has some problems with Camera/Sound etc issues???
Plz confirm.... Thanks
Sent from my GT-I9500 (Hassan Khalid Malik) using xda premium
HassanM said:
Which Kernel are u using??? I assume ure using Perseus 4... Ive heard and read on some forums that ver 4 has some problems with Camera/Sound etc issues???
Plz confirm.... Thanks
Sent from my GT-I9500 (Hassan Khalid Malik) using xda premium
Click to expand...
Click to collapse
absolutely Zero issues.....camera opens at the blink of an eye. Am on wanams MEA firmware, trimmed and themed by me according to my need.
hope this helps.
regards,
achyut
tried oc upto to 1.8 ghz today and yes, im impressed
quadrant gave something around 14,500 and geekbench scored 4k+
bala_gamer said:
tried oc upto to 1.8 ghz today and yes, im impressed
quadrant gave something around 14,500 and geekbench scored 4k+
Click to expand...
Click to collapse
I increased the voltages as advised by u but the quadrant results are around 13000 benchmark...
I'm currently using Omega 8/Perseus 3.4 along with the cross breeder....
My phones very snappy but just wondering about the quadrant result... Is there anything I'm missing???
Plz advise...
Thanks
Sent from my GT-I9500 (Hassan Khalid Malik) using xda premium
HassanM said:
I increased the voltages as advised by u but the quadrant results are around 13000 benchmark...
I'm currently using Omega 8/Perseus 3.4 along with the cross breeder....
My phones very snappy but just wondering about the quadrant result... Is there anything I'm missing???
Plz advise...
Thanks
Sent from my GT-I9500 (Hassan Khalid Malik) using xda premium
Click to expand...
Click to collapse
clock ur cpu at 1.8 ghz , u will get some similar scores
bala_gamer said:
clock ur cpu at 1.8 ghz , u will get some similar scores
Click to expand...
Click to collapse
Thanks for replying.....
Should I ser this value in STweaks or SetCpu or both?????
Sent from my GT-I9500 (Hassan Khalid Malik) using xda premium
undervolting cpu
i dont get my phone pass all time stress cpu test but in my daily use he reboot all time!
anyone stable oc gpu? 640mhz or higher?
gpu overclock
jianlinooi said:
anyone stable oc gpu? 640mhz or higher?
Click to expand...
Click to collapse
mine is not so stabel something i manage to complete gfx berch and someting not on 700 on stock voltages!
jianlinooi said:
anyone stable oc gpu? 640mhz or higher?
Click to expand...
Click to collapse
yep....am on 700 mhz and is stable...check out my post in previous page, I shared the voltages for CPU & GPU.
regards,
Achyut
achyut said:
yep....am on 700 mhz and is stable...check out my post in previous page, I shared the voltages for CPU & GPU.
regards,
Achyut
Click to expand...
Click to collapse
looks like your chip is cooked well
Hi forum !
I did some research on the Smartass V2 CPU Governor and it seems that it has nice balance between performance and battery. I downloaded Sultan's, Faux's, Bricked's kernels and they don't have this CPU governor for the HTC Sensation. Does anybody know which kernel contains Smartass V2 CPU governor for the HTC Sensation?
What is the best governor for Max performance?
coolasdude said:
What is the best governor for Max performance?
Click to expand...
Click to collapse
performance = always max cpu frequency (Not for daily use!!!)
interactive provides a good performance.
Which governors are supported by your kernel?
Hands down
Thanks
#~~~`
thanks ..... :highfive:
I use the governor ondemand, and it works famously battery-wise.