Database Users

Overclocking

(Q) can anyone tell me the consequences of overclocking too high
Sent from my DROIDX

TripleNP said:
(Q) can anyone tell me the consequences of overclocking too high
Sent from my DROIDX
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Your phone will reboot, it burns through your battery life quicker and overall can be hard on the hardware for your phone over an extended period of time....same as a computer
Sent from my DROIDX using XDA App

Cool that's what I thought...I recently installed the GB them and I thought that had something to do with it but them remembered that I had boosted the clock sod....hasn't booted on me since I dropped it back down a lil.
Sent from my DROIDX

I find that often the highest overclock kernel's usually don't work for most people. Pick one a few notches down and you will most likely enjoy the benefits of overclocking without any issues.
With ultra low voltage kernels, it is possible to overclock and still use less battery since the lower voltage requires a lower current.

[Idea] Faster Charging

I noticed that in aosp roms, the battery charges faster. If we could hunt down the reason of this, we can implement this in touchwiz based roms.
Sent from my SPH-D700 using XDA App

Possibly they use less power when the phone is idle (ie less apps running in the background, maybe undervolting). Since they use less power sitting there, they would charge faster.

Doesn't our aosp rom still have touch wiz framework?
Sent from my SPH-D700 using Tapatalk

gtuansdiamm said:
Doesn't our aosp rom still have touch wiz framework?
Sent from my SPH-D700 using Tapatalk
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He's talking about actual AOSP roms like cyanogenmod.
Texted while driving

Well Gingerbread in itself is more energy efficient..its one of the features of gingerbread...that and hummingbird optimizations help too..the faster it completes the process the faster it can go idle.

on related note, I'm wondering if it's possible to undervolt even more at say 200Mhz when the phone goes to sleep ??
just curious if it would even allow the phone to wake up, negative effects, etc. or 'might' it be worthwhile ?

gtuansdiamm said:
Doesn't our aosp rom still have touch wiz framework?
Sent from my SPH-D700 using Tapatalk
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We don't have a real AOSP rom.
Sent from my Frozen Epic using XDA App

daddymikey1975 said:
on related note, I'm wondering if it's possible to undervolt even more at say 200Mhz when the phone goes to sleep ??
just curious if it would even allow the phone to wake up, negative effects, etc. or 'might' it be worthwhile ?
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I had -125mV and when the battery got below 40% phone wouldn't wake up. So that will vary from phone to phone.

daddymikey1975 said:
on related note, I'm wondering if it's possible to undervolt even more at say 200Mhz when the phone goes to sleep ??
just curious if it would even allow the phone to wake up, negative effects, etc. or 'might' it be worthwhile ?
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Not sure whether you meant "undervolt" or are talking about the processor speed being throttled back... two different things (but your units for the 200 are wrong for undervolting). Are you talking about undervolting or CPU speed?

beejmeister said:
Not sure whether you meant "undervolt" or are talking about the processor speed being throttled back... two different things (but your units for the 200 are wrong for undervolting). Are you talking about undervolting or CPU speed?
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I believe he is talking about both, undervolting at each clockspeed. I do this with Voltage Control.
Do you BONSAI?

marcusant said:
I noticed that in aosp roms, the battery charges faster. If we could hunt down the reason of this, we can implement this in touchwiz based roms.
Sent from my SPH-D700 using XDA App
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this has already been done, nubecoder did it with an older bonsai kernal. works great, unfortunately no one else wants to do it. battery charges much faster and fully to 100% instead of 97%.
I'm not using the kernal now because it doesn't work with cpu spy and it doesn't work with wifi tether. but the info is there on how to do it and should be easy to do to other kernals. Unfortunately i don't have the knowledge to be able to do something like that.

beejmeister said:
Not sure whether you meant "undervolt" or are talking about the processor speed being throttled back... two different things (but your units for the 200 are wrong for undervolting). Are you talking about undervolting or CPU speed?
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I was talking about both, throttling back the CPU when sleeping AND undervolting the 200mhz step at the same time while sleeping to conserve battery more, thereby 'hoping' for a quicker charge.
just an idea.

N7 undervolted CPU

I have underclocked my CPU at 1GHz and undervolted it to -125mV and its working perfectly stable. Is it safe to undervolt even lower or should i be satisfied?

I see no reason why it wouldn't be safe. From what I know about overclocking is that worse case scenario is that it might make your tablet become unstable.
Sent from my Galaxy Nexus using xda app-developers app

More than likely it will reboot and reset values if something goes wrong. There's no harm in testing lower values so long as you don't set it on boot.
Tapatalk made me send this.

jshashwat93 said:
I have underclocked my CPU at 1GHz and undervolted it to -125mV and its working perfectly stable. Is it safe to undervolt even lower or should i be satisfied?
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so.. your device is now running on negative voltage? does that mean its producing electricity instead of using it?

Each CPU is unique, it should detect a fault and just reset to stock voltage table
Sent from my Nexus 7 using xda app-developers app

simms22 said:
so.. your device is now running on negative voltage? does that mean its producing electricity instead of using it?
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Lol I meant -125mV taking the stock values as starting point. Not from 0. And that's how everyone using System Tuner refers to it..

jshashwat93 said:
Lol I meant -125mV taking the stock values as starting point. Not from 0. And that's how everyone using System Tuner refers to it..
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ahh.. then thats normal. if you get freezes or sod then its too much undervolting for your device. also, to much undervolting can actually lead to more battery drain.

You can lower it as much as you can the worse that can happen is that it reboots because the cpu required more electricity then it could get.
Lower it as much as you can is the best you can do

[Q] XOOM SetCPU clock rate

Has anyone experienced performance enhancement with Clock Rate of 1500 in XOOM?
Also, are there any side effects on the life of CPU if this clock rate is used permanently?
Cheers.

Yes, I get significant increase at 1.5. I haven't noticed any substantial decreases in battery life, and as long as it isn't getting too hot than you shouldn't have to worry about the CPU dying much sooner than normal.
Sent from my SGH-I747 using xda premium

d3athsd00r said:
Yes, I get significant increase at 1.5. I haven't noticed any substantial decreases in battery life, and as long as it isn't getting too hot than you shouldn't have to worry about the CPU dying much sooner than normal.
Sent from my SGH-I747 using xda premium
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Thanks, I will try using 1500.

Obviously running the cpu at 50% faster is going to provide and improvement in the overall speed. The heat is negligible with the Xooms big metal back. Battery may be affected but I have never used stock speed.

Overclocking

Hey guys, just wondering what the maximum frequency our Snapdragon S4 Pro CPU's can handle??
Thanks peoples lol
Sent from my Nexus 4 using xda premium

What's the point in over clocking on the n4? Are the improvements actually noticeable for anything besides bench testing? Meaning is it noticeable when doing day to day activities? The reason i ask is because my phone has handled everything I've thrown at it with no issues so far.....just curious I guess
Sent from my Nexus 4 using xda app-developers app

speedyjay said:
Hey guys, just wondering what the maximum frequency our Snapdragon S4 Pro CPU's can handle??
Thanks peoples lol
Sent from my Nexus 4 using xda premium
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I see absolutely no point in over clocking this device, even under clocking the nexus 4 you get plenty of power.

speedyjay said:
Hey guys, just wondering what the maximum frequency our Snapdragon S4 Pro CPU's can handle??
Thanks peoples lol
Sent from my Nexus 4 using xda premium
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If you use trinity kernel, you will be able to oC to 1.8Ghz. It used to be able to OCable to 1.9 but I think there were substantial issues with that level. Overclocking will ruin the CPU life span. Overclocking is more suitable for computers. This phone is really quick and smooth out of box. Overclocking it is redundant.
Sent from my Nexus 4 using Tapatalk 2

Does anybody here even understand what overclocking is?

Why oh why do people feel the need to overclock a Quad core device with 2 gigs of RAM.

ScumDroid said:
Why oh why do people feel the need to overclock a Quad core device with 2 gigs of RAM.
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Good question but, to answer the OP 1.94GHz is the max. More may be possible however, no one is foolish enough to risk 2Ghz+.

Okay let's set this straight:
More Overclock --> Faster speed --> Lower stability
Increasing Voltage --> More stability --> Higher temperature --> Dangerous
To be able to achieve a higher clock speed, you need to have a higher CPU voltage in order for it to be stable. If you don't increase the voltage, the CPU will churn out corrupted data, and in the worse case files will become corrupted as they are written into memory. But it WON'T damage your hardware. However, because you are increasing the voltage, you get more heat, which can damage your hardware. So it's actually the overvolting bit that is dangerous, not the overclocking.
As for maximum clockspeed, you might find this article interesting:
"Theoretically, your upper limit would be due to the propagation delay in sending electrons from one point to another, which would be the speed of electricity. Electricity travels close to the speed of light and light travels a foot in a femtosecond (10E-15 s) so the top speed is somewhere in the 10E22-10E23 Hz range. However, this limit will never be reached as this assumes no capacitance and no resistance in the wire."
- Source: Mu_Engineer (http://www.tomshardware.com/forum/250325-28-limit-clock-speed) -
1 GHz is 10E9 Hz, which is nowhere close to 10E22. Even taking into account the resistance of the circuitry, 10E9 is still very low. So 1.94 GHz is simply the maximum STABLE clockspeed you can normally achieve on a Nexus 4. In addition, developers might impose arbitary limitations on how much you can overclock your CPU, but that's just a software limitation.
In conclusion, the answer will depend on which of the following questions you actually want answered:
1) What is the highest stable clockspeed the XDA community has managed to achieve without external aid (i.e. liquid N2)?
2) What is the highest clockspeed allowed by currently available kernels?
3) What is the physical clockspeed limit of the Snapdragon S4 Pro assuming external aids are allowed? (E.g. connecting your CPU to a higher voltage source directly while keeping it cooled with liquid helium. Even then it would probably only lasts for a few seconds.)

snapper.fishes said:
Okay let's set this straight:
More Overclock --> Faster speed --> Lower stability
Increasing Voltage --> More stability --> Higher temperature --> Dangerous
To be able to achieve a higher clock speed, you need to have a higher CPU voltage in order for it to be stable. If you don't increase the voltage, the CPU will churn out corrupted data, and in the worse case files will become corrupted as they are written into memory. But it WON'T damage your hardware. However, because you are increasing the voltage, you get more heat, which can damage your hardware. So it's actually the overvolting bit that is dangerous, not the overclocking.
As for maximum clockspeed, you might find this article interesting:
"Theoretically, your upper limit would be due to the propagation delay in sending electrons from one point to another, which would be the speed of electricity. Electricity travels close to the speed of light and light travels a foot in a femtosecond (10E-15 s) so the top speed is somewhere in the 10E22-10E23 Hz range. However, this limit will never be reached as this assumes no capacitance and no resistance in the wire."
- Source: Mu_Engineer (http://www.tomshardware.com/forum/250325-28-limit-clock-speed) -
1 GHz is 10E9 Hz, which is nowhere close to 10E22. Even taking into account the resistance of the circuitry, 10E9 is still very low. So 1.94 GHz is simply the maximum STABLE clockspeed you can normally achieve on a Nexus 4. In addition, developers might impose arbitary limitations on how much you can overclock your CPU, but that's just a software limitation.
In conclusion, the answer will depend on which of the following questions you actually want answered:
1) What is the highest stable clockspeed the XDA community has managed to achieve without external aid (i.e. liquid N2)?
2) What is the highest clockspeed allowed by currently available kernels?
3) What is the physical clockspeed limit of the Snapdragon S4 Pro assuming external aids are allowed? (E.g. connecting your CPU to a higher voltage source directly while keeping it cooled with liquid helium. Even then it would probably only lasts for a few seconds.)
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Why don`t you overclock it yourself and post your findings here, overclocking the N4 is useless imo and only nice for those kicking on benchmarks.

gee2012 said:
Why don`t you overclock it yourself and post your findings here, overclocking the N4 is useless imo and only nice for those kicking on benchmarks.
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I won't because at the moment I fail to see any reason why anyone would need to OC their Nexus 4. So yes I am agreeing with you.
However, OP asked for the highest clockspeed, not for opinions on whether OC is useful. Saying that OC is useless in response to his question is similar to telling someone that they should eat at Burger King instead when they ask you for directions to MacDonald's. It doesn't make your statement any less true, but you are not answering his question.

With some Kernel like Faux you can OC up 1.94Ghz (Turbo Boost Ultimate) but not all CPU hold this frequency.
I think 1.83Ghz (Turbo Boost Mainline) is more reasonable.
Both Kernel just mentioned also OC GPU to 487Mhz.
Personally i don't Think we need to OC our Nexus 4, I've never seen a phone so fast
Sent from the Nexus 4

Thanks for all the responses, I agree with all answers given....the N4 doesn't need anymore Nos lol I was just curious thanks again guys and girls (if any) lol
Sent from my Nexus 4 using xda premium

Yep I OC like crazy and love it. I use faux @ 1.9 UV -125 across the board, fast cpu bin:good: no problems or issues to cry about...

yyz71 said:
Yep I OC like crazy and love it. I use faux @ 1.9 UV -125 across the board, fast cpu bin:good: no problems or issues to cry about...
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Your CPU is not going to have a long life. You're wearing it down dude.
Sent from my Nexus 7 using Tapatalk 2

scream4cheese said:
Your CPU is not going to have a long life. You're wearing it down dude.
Sent from my Nexus 7 using Tapatalk 2
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It will have a long life more then the length he'll keep the device.
Sent from my Nexus 4 using xda app-developers app