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Evo overclocking questions, hopeing for some Dev input!

Hey all, I want to get some info on the limitations of our processor, mainly is their a ceiling on how high we can overclock our Evo's?
I am sure most of us here are familiar with the insanely fast 1.3ghz-1.8ghz(I think the top I read was 1.8ghz) speeds some newer phones are getting clocked to, the only thing that caught my eye about these speeds is that they are reported stable & usable. Coming from a Hero(a while ago) that I had to overclock to my Evo that is not really necessary to overclock was nice, BUT it would be awesome to have an Evo clocked at 1.5ghz-1.8ghz and stable as well as usable, is this even remotely doable? If not what is causing the limitation? Just curious
Edit: HAPPY THANKSGIVING, I am very thankful for my wife & kids as well as all you great guys and gals here at XDA!
Sent from my White Evo 4G

It all depends on your phone....what may run on yours may send mine into random reboot...I found mine is stable at 1.13
You may want to raise the bar a little at a time to see what you can handle....be sure not to have it set on boot till you are sure your phone can handle it....
Sent from my froyo using the xda app

matthewjulian said:
Hey all, I want to get some info on the limitations of our processor, mainly is their a ceiling on how high we can overclock our Evo's?
I am sure most of us here are familiar with the insanely fast 1.3ghz-1.8ghz(I think the top I read was 1.8ghz) speeds some newer phones are getting clocked to, the only thing that caught my eye about these speeds is that they are reported stable & usable. Coming from a Hero(a while ago) that I had to overclock to my Evo that is not really necessary to overclock was nice, BUT it would be awesome to have an Evo clocked at 1.5ghz-1.8ghz and stable as well as usable, is this even remotely doable? If not what is causing the limitation? Just curious
Edit: HAPPY THANKSGIVING, I am very thankful for my wife & kids as well as all you great guys and gals here at XDA!
Sent from my White Evo 4G
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not exactly sure how it works on the phones but if its anything like a pc processor then it would take a kernel that can tweek voltages right like to get a 1.8 on our ever i would say it would need about a 3 step down uv but not sure if it would be stable heck at 3 step down uv it shouldn't boot unless its set oc'd on splash boot I'm pretty sure since our proc. are first gen snapdragons and the one's in the G2 and myTouch 4G are second with a smaller die ours won't be able to make it that far up with out major modification

Hmmm......so if I were to get off my ass and learn to compile a kernel I could at least attempt it, good info, thanks! At least now I have a place to start researching, I think I would be happy with a bump to an even 1.5ghz if it were stable, well if anyone else has more info I'm all ears!
Sent from my White Evo 4G

I got mine at 1.15 anything past that seems unstable 1.2/1.25 reboots automatically (cm7 nightly 88)

The FroYo kernels come unlocked to 1190 I believe. When I was running FroYo I ran 1152 all the time. You don't really need to compile your own kernel unless you really want to. All of the kernels available here are unlocked except for the stock kernels. Also 1190 was about the limit for most EVOs.

I don't have an evo, but I do have a snapdragon, use quadrant to check scores after an overclock. 1190 isn't so good. Makes lower scores than the stock 1ghz. Fsb bottlenecks at that speed, but gets a boost at 1530. I've had my snapdragon around 1600 stable all day. Low battery life though.
Sent from my HTC HD2 using XDA Premium App

How fast can the desire go ???

The hd2 can go up to 1.5ghz I know so why can't the desire, you may ask 'why does it need to get faster its fast anyway ' well that's because I want to see how far it can go. ages ago our kernels were going up to 1.3ghz and surprisingly it was stable for me. Any answers
Sent from my HTC Desire using XDA App

DHD has a different processor

What? He is not even mentioning Desire HD, only HD2, which has an identical chip.

My fault, swear it said DHD!

EddyOS said:
My fault, swear it said DHD!
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lol shouldve went to specsavers

Lol yeah , but seriously any idea
Sent from my HTC Desire using XDA App

No cpu is the same, even if its the same model, one person may be able to oc theres to 1.5 ghz. where as another may be only able to oc theres to 1.1 ghz. someone on another forum oc'd there droid x to 2.5ghz lol
Sent from my Desire HD using Tapatalk

AndroHero said:
No cpu is the same, even if its the same model, one person may be able to oc theres to 1.5 ghz. where as another may be only able to oc theres to 1.1 ghz. someone on another forum oc'd there droid x to 2.5ghz lol
Sent from my Desire HD using Tapatalk
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This is very true not only that there is the stresses that your ROM and apps are taking on the CPU some will be OC'd to be extremely fast but never actually use that amount of CPU speed so will always be stable however some users will take theirs to the limit and will only remain stable at much less CPU speed.
It's pretty much the same with all processors but who really wants to fry their processor just checking how fast they can make it run. If 1.3Ghz is stable for you then that's all good bump it up yourself once your cpu burns out you know it can't go that fast

warlordxxx said:
This is very true not only that there is the stresses that your ROM and apps are taking on the CPU some will be OC'd to be extremely fast but never actually use that amount of CPU speed so will always be stable however some users will take theirs to the limit and will only remain stable at much less CPU speed.
It's pretty much the same with all processors but who really wants to fry their processor just checking how fast they can make it run. If 1.3Ghz is stable for you then that's all good bump it up yourself once your cpu burns out you know it can't go that fast
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+1 and if the op really wants to try it, why not throw a donation at a dev, get him to compile you a kernel that can be oc'd that much
Sent from my Desire HD using Tapatalk

998Mhz does me just fine on my Desire. I used to run 1.51Ghz on my DHD but all I got from it was an awesome Quadrant score and a piss poor battery life. For day to day use I really don't notice the difference from 998Mhz to 1190Mhz with a HAVS/BFS kernel on my Desire.

my amoled went up to 1300 and my wife slcd wont go over 1030(i menan it will but any stronger activity will crash it)

2.5ghz overclocked with a droid x?
how good was the battery life on that?

I think 998 MHZ is enough for my Desire. 1.5 GHZ is nothing to me.

(Q)I have a og evo and cant overclock it 1.2ghz.

I have a og evo I want to know why when I overclock to 1.2ghz it freezes my phone why does it do that ?
Sent from my Nocturnal 4G using xda premium

Each Evo is different. Some of them can't handle that high overclock, or can't be undervolted very low. Each one is different, each has its limits.
I don't understand the big deal with overclocking. It burns your battery faster. I personally underclock, with little to no lag and is good enough for my casual gaming needs

Mine doesn't like a clock much at all. I can get about 1.1 before it starts locking up but even then it hangs a lot. I honestly don't see a difference from 1.0 to 1.2. Get a decent rom, good kernel and try out the v6 script an I almost guarantee you will like that better.

beaumontcali48 said:
I have a og evo I want to know why when I overclock to 1.2ghz it freezes my phone why does it do that ?
Sent from my Nocturnal 4G using xda premium
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Well for us to be able to help you, you would need to provide us with more details on how you are trying to accomplish this.

I use no frils cpu but have also tried setcpu and viperMOD I know that's the best way to overclock but is very confusing. Have any step by step instructions to of to 1.2 I know having higher voltages helps as well.
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Sent from my Nocturnal 4G using xda premium

Overclocking is overrated. If you need to overclock for every day usage, then something is wrong - at least in my opinion. Resource intensive gaming is different, but you shouldn't need to overclock for browsing, texting, casual games, etc.
Try out the V6 Supercharger script. I'm not currently using it, but have in the past and it seemed to make my phone more snappy. A lot of people swear by it and it's a great script, definitely worth a shot. There are other things you can do to speed up your phone without overclocking. I'd try other options first since overclocking will chew through your battery. Increase the dalvik vm heap size, there are plenty of free apps on the market to help with this task. Uninstall apps you don't use, I'll bet that you never use some of the apps on your phone. Back them up with Titanium Backup and you can restore them if you ever need them again.
In case you didn't already know, the Evo can't overclock past 1.2, I'm not 100% sure why - it has something to do with the processor.
Supersonic Evo 4G | MIUI | Tapatalk

I never oc over 1075 and only when plugged in if i play a game I need to oc.for I just activate my charging profile and plug up and play 1.2 ghz is a good chance of doing serious.damage as these older scorpion processors get very very hot at that clock speed so they lock up to try and protect themselves from heat damage or they shut down the phone 1075 is as high as you should need to go for any games the evo can handle on the subpar gpu
Sent from my Classic-EViLizED-ToMAToFiED-EVo4g-

beaumontcali48 said:
...also tried setcpu and viperMOD I know that's the best way to overclock.
..
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I'm pretty sure viperMOD is more for undervolting than overclocking, which are not suppose to be combined together. I am running vipermod with max voltages - 50. Other nite was playing snes9x and was getting some lag with a game so I bumped max CPU up to 1.2. Phone went into a bootloop and had to superwipe and reflash everything. Don't know if its b/c vipermod + 1.2 CPU or just bumping up CPU. Didn't try it again.
Support TrevE!!

shift
Get a shift. Mine runs fine at 1.9. But usually run it art 254-1200 on demand.

{ParanoiA} said:
I'm pretty sure viperMOD is more for undervolting than overclocking, which are not suppose to be combined together. I am running vipermod with max voltages - 50. Other nite was playing snes9x and was getting some lag with a game so I bumped max CPU up to 1.2. Phone went into a bootloop and had to superwipe and reflash everything. Don't know if its b/c vipermod + 1.2 CPU or just bumping up CPU. Didn't try it again.
Support TrevE!!
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You can overclock and undervolt together just fine. You just need to ensure that every frequency has a high enough voltage to run the processor at that step. My Evo is overclocked and undervolted just fine, although IIRC I can only push it up to 1.1 GHz . My tablet is 1ghz to 1.6ghz and is undervolted as well, though.

merge rls 2.0, iron monkey, Droid overclock because of the profiles options. I set up four profiles including one for temp. sometimes i'm underclocking and sometimes overclocking but only up to 1.19 to prevent freeze and boot loops. Only downside is right at open Droid overclock needs su permission but that is my choice since profile changes at open.
Very snappy afterwards.
Sent from my PC36100 using XDA Premium App

When I had the 4G, I was never able to go above 1118, or somewhere around that. It would have freezing issues.
On my evo shift, I was able to do 1.7 gHz (compared to stock 800 mhz) ok. 1.6 pretty reliabily, and I could run 1.5 all day long. Some guys could do 1.9. It just depends on the phone.

Actually overclocking and undervolting is counter-productive. What you should do, is read carhaulers and ropodopes guide over at vaelepak. Its give some good useful info about how to set up a good aosp rom. I'm underclocked, undervolted, and still getting 1400+ benchmarks. Check it out bro. You'll love the results.
Sent from my PC36100 using xda premium

tommy0823 said:
Actually overclocking and undervolting is counter-productive. What you should do, is read carhaulers and ropodopes guide over at vaelepak. Its give some good useful info about how to set up a good aosp rom. I'm underclocked, undervolted, and still getting 1400+ benchmarks. Check it out bro. You'll love the results.
Sent from my PC36100 using xda premium
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Shoot the brutha a link
TrevE Supporter!

tommy0823 said:
Actually overclocking and undervolting is counter-productive. What you should do, is read carhaulers and ropodopes guide over at vaelepak. Its give some good useful info about how to set up a good aosp rom. I'm underclocked, undervolted, and still getting 1400+ benchmarks. Check it out bro. You'll love the results.
Sent from my PC36100 using xda premium
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What? Overclocking and undervolting are two completely different things, and they aren't mutually exclusive. Unless you can provide a good reason as to why it's counter productive to do both, I don't buy that at all. Just checked my phone, my overclock requires an extra 25 mV for all three steps I've overclocked. 25mV isnt much, and it certainly isn't going to kill my battery that much faster.
Besides, the only time the CPU is going to be entering these high power modes is when it needs to do work, and it's better to do work as fast as possible to go back to sleep. Would you rather wake up, do a mundane task for 5 minutes, then go back to sleep or wake up, do a task at 2x the speed while only consuming 30-50% more energy, then going back to sleep after only 2.5 minutes?
HUGI is real.
Sent from my Transformer TF101

Yea shot me the link too bro.
Sent from my PC36100 using xda premium

First let me say I don't use viper mod or any voltage controlling mod.
On sense 3.0 roms such as mikg I over clock to 1152 and set the minimum to 384 and its smooth as butter. No problem and battery lasts all day.
On aosp however such as decks (I'm on it now) I underclock to 499 and leave the min at 254. Smooth as always and battery lasts forever.
Anything past 1152 is going to cause problems (at least in my experience) also the rom/kernel can effect how much you can overclock.
Sent from my PC36100 using xda premium

Gary13579 said:
What? Overclocking and undervolting are two completely different things, and they aren't mutually exclusive. Unless you can provide a good reason as to why it's counter productive to do both, I don't buy that at all. Just checked my phone, my overclock requires an extra 25 mV for all three steps I've overclocked. 25mV isnt much, and it certainly isn't going to kill my battery that much faster.
Besides, the only time the CPU is going to be entering these high power modes is when it needs to do work, and it's better to do work as fast as possible to go back to sleep. Would you rather wake up, do a mundane task for 5 minutes, then go back to sleep or wake up, do a task at 2x the speed while only consuming 30-50% more energy, then going back to sleep after only 2.5 minutes?
HUGI is real.
Sent from my Transformer TF101
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Its counter productive because it is giving less to something that needs more. (Don't take this post as me trying to be a ****. Just voicing how someone explained it to me a while ago)
Think of this as cars.
Lets say you have a nice fancy v8 mustang. Stock, everything is well, balanced.
If you start adding parts and get it pushing out 1000 horsepower (overclock) your most likely gonna need more feul (voltage) or at least stock amount flowing into the engine just to keep it running.
Now lets say you got that same 1000 horsepower gas destroying mustang and you start to lower the amount of gas flowing into the engine (undervolt (done in vipermod)) cylinders (CPU) wont get enough gas, it wont work, and your stuck going no where.
So if that made sense (did to me) then you can see why they are counter productive. Unless your using vipermod to overvolt (which idk if you can since I don't use it) then you can disregard this whole post
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Your car analogy is completely irrelevant. You can look up the exact voltages that the CPU runs on at every frequency, *even when overclocking*. Overclocking an Evo 1ghz to 1.2ghz takes maybe a 5% bump in voltage, and that 5% extra power is only going to be used *when the CPU is running at max speed* (which is only when there is a lot of work to do), and even then, it's *still better to let the CPU run at max speed with a tiny bit more power consumption than to cap the CPU at a slower speed and make it work for even longer*. Intel calls it HUGI, Hurry Up and Get Idle.
I know what I'm talking about, and I wish people would stop trying to argue with me based off of second hand speculation. I do this for a living, after all. There is absolutely nothing wrong with overclocking and undervolting, and it's the best way to get the most battery life *and* performance out of your phone, period.
Sent from my Transformer TF101

Gary13579 said:
Your car analogy is completely irrelevant. You can look up the exact voltages that the CPU runs on at every frequency, *even when overclocking*. Overclocking an Evo 1ghz to 1.2ghz takes maybe a 5% bump in voltage, and that 5% extra power is only going to be used *when the CPU is running at max speed* (which is only when there is a lot of work to do), and even then, it's *still better to let the CPU run at max speed with a tiny bit more power consumption than to cap the CPU at a slower speed and make it work for even longer*. Intel calls it HUGI, Hurry Up and Get Idle.
I know what I'm talking about, and I wish people would stop trying to argue with me based off of second hand speculation. I do this for a living, after all. There is absolutely nothing wrong with overclocking and undervolting, and it's the best way to get the most battery life *and* performance out of your phone, period.
Sent from my Transformer TF101
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Hmm, *interesting*. I believe the best answer to the OP was covered rather well earlier. It's all about your rom/kernel/hardware combination. With all the variables to consider as relevant, your best bet is to experiment and find what works for your device. Don't check set on boot untill you are confident the set-up is stable. Higher is not always better with overclocking. My device runs blazingly well underclocked @768max. Gets insanely great battery @499max. However my quadrants are better @ 1036 than at 1190.
Great thing about android is you can experiment and learn through trial and error.
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[Q] overclocking

Hello everyone,
I am using many different roms since i have my desire z rooted.
The only problem is:
i can overclock to about 1 ghz... everything above it results in a freeze were my screen stays awaken.
Does anybody know what i'm doing wrong?

You can try different governors, and others may have some other tips. But its also possible that 1 GHz is all your CPU can handle. Not all CPUs are created equal. Far from it, in fact. There is a reason why CPUs are rated for a certain clock speed, in our case 800 MHz. That's the speed that the manufacturer can basically guarantee stable performance. Anything higher than that, and all bets are off. The manufacturing process has a huge amount of variability to it. So to see some people getting stable performance at 1.5 GHz, while you might not get over 1 GHz with the same series of chip, is not a big shock to me.

What roms are you using?
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I have heArd that CPUs of the same phone can perform different. Mine will run all day at 1.8ghz while others get reboots and freezing when they go over 1-1.2 GHz. It really don't make sense to me but I guess it happens. Just glad mine will take whatever the kernel frequency sets allow lol.
Sent from my HTC Vision using XDA App

selfinflicted1 said:
I have heArd that CPUs of the same phone can perform different. Mine will run all day at 1.8ghz while others get reboots and freezing when they go over 1-1.2 GHz. It really don't make sense to me but I guess it happens. Just glad mine will take whatever the kernel frequency sets allow lol.
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The manufacturing process for any type of CPU is quite variable. They can target a range of clock speeds, but can't efficiently manufacture all the chips at the same exact performance. CPUs actually get testing after manufacturing to determine the clock speed, and are "binned" into various categories based on how they tested. If a CPU doesn't meet the test specs for a certain clock speed category, it will be dropped to the next one down. Its also based on market demand. It completely possible a high performing chip gets labelled and sold as a lower performing one, simply to meet demand.

using the andramadus rom i can get well over 1.5ghz completely stable. you should try that

Is the phone stable when overclocking past 1.3ghz?

I heard there was a problem with stability issues before. Has it been fixed?
Also, do any of you guys feel the need to OC in the first place?

iArtisan said:
I heard there was a problem with stability issues before. Has it been fixed?
Also, do any of you guys feel the need to OC in the first place?
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I tried OC'ing to 1,4 for a short time, didnt get any instabilities.
Which leads me to question two. No I don't feel the need to OC this phone, it is still good enough to cope with everything i throw at it.

The worst that will happen is that it will run a little hotter than normal. I was running Trinity Kernel on RasCream ROM clocked at 1.5GHz and it was fine, nothing crashed, no reboots, all was well.
Besides; It's a Nexus, it was built for this!

This varies for everyone
Sent from my GT-I9300 using Tapatalk 2

Meh. It all varies. No 2 chipsets are the same. What may work for someone else may not work for you. Trial and error is the only surefire way to find out.

Hi,
I agree with what has been said above, all the CPU's are not equal but actually the progress made by the kernel devs allows all (or almost) phones to run at 1.3* Ghz (1.34/1.35 Ghz, it depends of the kernel) without any issues.I think it's for all, actually I don't remember a user with issues at 1.3* Ghz...
And for most phones 1.5 Ghz is fine.For some others, above 1.5 Ghz is problematic but it depends also of too many factors.
Now it's not like it when the Genx came out, where 1.3 Ghz was the limit of CPU overclock for all the phones.
And many people can run stable at 1.65 Ghz, also it depends of the kernel.
For me for example my max CPU freq usable each day, so stable is 1.72 Ghz with Glados kernel, above (like 1.8 Ghz) it runs fine for 30 mins, sometimes 1 hour, but after always freeze/reboot... maybe my CPU can't reach this CPU freq or maybe my settings are wrong (voltage) ...
I agree, an extreme overclock like 1.72 Ghz is not really necessary for all day (heat, battery life, etc...) but a little overclock like 1.5/1.53 Ghz and you a difference in certain case (openning some apps, general UI, browsing, etc...).
But if we have the ability to test and play...why not... ,in any case for me it's yes, I like overclock and test the possibilities/limits of my phone, different settings...
Everyone does as he wants and it depends on what you want (battery life,a little more power in some situation like playing or a higher bench score ).

Well considering Texas instruments recommended highest clock speed for this processor is 1.5 ghz I'd say your fine. Anything above that is dependent on how well your chip set will handle it. Besides who honestly has needed to OC for anything other than benchmarks?
Sent From My Sprint Galaxy Nexus