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Root CM7: Min & Max CPU frequency

N

Nanocomunicate

Newbie
I installed CM7 (7.1.0-TG-Beta-0.8-Triumph) on my phone. I tried to tweak my minimum and maximum frequency, but when I try to press on them it says "cancel" instead of showing me the options of MHz I can choose from. The minimum is at 245 MHz and the maximum frequency is at 1024 MHz and I can't do anything to increase or decrease these. I also tried changing the governers and they stay at the same frequency. Why can't I change these frequencies?
 
Assuming you havnt lost root somehow and have superuser installed you can experiment with different frequencies. If you already have a pair in mind you'll have to wait for someone more advanced to help you but ill play with it to see if i can duplicate your issue. Of course this is a temporary solution because your rom already has this feature built in.

screenshot-1327846525208.png
:)
 
You will need to use a different kernel. There are a couple linked in the all things root guide that are for CM7 and are overclockable.
 
You can use an overclockable kernel like others have said or flash cm7-tg-reloaded which has more features and an overclockable kernel already.
 
How would I install the CM7 Reloaded? Do I follow the same steps and factory reset/wipe my phone and put it on my SD card then install through CWM? So, if the CM7 by TickerGuy can't overclock it can only underclock? I underclocked it to 12XMhz.
 
Nanocomunicate said:
How would I install the CM7 Reloaded? Do I follow the same steps and factory reset/wipe my phone and put it on my SD card then install through CWM? So, if the CM7 by TickerGuy can't overclock it can only underclock? I underclocked it to 12XMhz.
Click to expand...

You can just download it and wipe cache, dalvik-cache, and flash the rom. TG's cm7 has his kernel which doesn't have OC capabilities, there are other kernels you can flash or just go to cm7-reloaded.
 
How do I wipe the cache and the dalvik-cache?
I also wanted to know if only rooted phones drop there MHz when the screen is turned off and the phone isn't in use?
 
Nanocomunicate said:
How do I wipe the cache and the dalvik-cache?
I also wanted to know if only rooted phones drop there MHz when the screen is turned off and the phone isn't in use?
Click to expand...

No all phones will turn there cpu clock speed down, unless you are rooted and have settings changed that doesn't allow it to.

And to wipe your cache and dalvik cache boot into recovery, then scroll down to wipe cache, select it, then select yes, then scroll to advanced, select it, select wipe dalvik cache, select yes, then just flash CM7-TG-Reloaded the same way you flashed cm7.
 
I was wondering... if my MT was to be overclocked would it have a longer battery life because it would have an easier time processing things or would it shorten it's life? If so, what would be the recommended Mhz and governor?
 
Nanocomunicate said:
I was wondering... if my MT was to be overclocked would it have a longer battery life because it would have an easier time processing things or would it shorten it's life? If so, what would be the recommended Mhz and governor?
Click to expand...

Overclocking shortens battery life because its making the processor work harder and therefor sucking up more power. The best way to figure out what clock speed is best and what govenor is just by trial and error. Each person is going to get different results.
 
marc12868 said:
Overclocking shortens battery life because its making the processor work harder and therefor sucking up more power.
Click to expand...

Not necessarily true. Because it can process the request faster and get back to a lower clock speed (idle) sooner, overclocking may increase battery life. But you redeemed yourself with...
marc12868 said:
The best way to figure out what clock speed is best and what govenor is just by trial and error. Each person is going to get different results.
Click to expand...

Very true. I don't overclock because I don't feel the need. I also don't want my processor to go bad sooner, which isn't necessarily guaranteed by overclocking but not doing it guarantees that it won't happen from that :).
 
agentc13 said:
Not necessarily true. Because it can process the request faster and get back to a lower clock speed (idle) sooner, overclocking may increase battery life. But you redeemed yourself with...
Click to expand...
Depends on the governor, some governors will stay at max for a long(er) time, most of the time overclocking lower battery life, mostly because some governors stay at frequencies higher than 1.0Ghz for the simplest of processes.

I'm running at:
576Max
24Min
SavagedZen
SIO
Undervolted;
24Mhz: 500
576Mhz: 900
 
Austrie said:
Depends on the governor, some governors will stay at max for a long(er) time, most of the time overclocking lower battery life, mostly because some governors stay at frequencies higher than 1.0Ghz for the simplest of processes.

I'm running at:
576Max
24Min
SavagedZen
SIO
Undervolted;
24Mhz: 500
576Mhz: 900
Click to expand...

Which is why I said it MAY improve it. It will all depend on the setup.
 
I've downloaded CM7 Reloaded from Whyzor, thank you! Now I'm able to overclock and underclock to the lowest setting, 61mhz. What's undervolting? O__O
 
Nanocomunicate said:
I've downloaded CM7 Reloaded from Whyzor, thank you! Now I'm able to overclock and underclock to the lowest setting, 61mhz. What's undervolting? O__O
Click to expand...
It's, changing how much mV(power/battery) each frequency uses; you can do this through incredicontrol app from market. Each frequency needs at least a certain amount of power, if you go to low in power for whatever frequency, you will result in reboot or in worse case bootlooping, when your phone uses that frequency; though how much is not known because everybody's phone is different, varying how much everyone's phone can handle different amount of stress or lack of power.
 
Austrie, how long does your phone last with those min and max clocked at those speeds? How'd you know how to underclock is there some type of way of knowing how low to undervolt?
 
Nanocomunicate said:
... is there some type of way of knowing how low to undervolt?
Click to expand...

Trial and error.
I have found that -50mv (at all frequencies, if not overclocking much) is safe on my phone. Anything below that and I have to experiment allot, one frequency at a time. Get a reboot and you're too low at some frequency.
 
thangfish said:
Trial and error.
I have found that -50mv (at all frequencies, if not overclocking much) is safe on my phone. Anything below that and I have to experiment allot, one frequency at a time. Get a reboot and you're too low at some frequency.
Click to expand...

Same here. I just use the master control up top and drop them all down by 4 and leave it as is. If I drop it down by 5, instant reboot.
 
Austrie said:
Depends on the governor, some governors will stay at max for a long(er) time, most of the time overclocking lower battery life, mostly because some governors stay at frequencies higher than 1.0Ghz for the simplest of processes.

I'm running at:
576Max
24Min
SavagedZen
SIO
Undervolted;
24Mhz: 500
576Mhz: 900
Click to expand...

Does your low voltages actually stick. The reason I ask is, when I drop mine below 800mv, my phone doesn't act like it's below 800mv.
The way I know is at ~500MHz if I go below 850 (825 or 800), the phone reboots. If I go to 775 or less the phone runs just fine.
I know we have this cute black box that we tell to do stuff. I'm just not sure if it always listens.
 
The lower the mv the better? If I set on boot and it causes my phone to restart how do I undo these settings?

These are my settings:
61mhz 500mv
122mhz 500mv
245mhz 550mv
576mhz 800mv
768mhz 900mv
1024mhz 1000mv
 
Nanocomunicate said:
The lower the mv the better? If I set on boot and it causes my phone to restart how do I undo these settings?

These are my settings:
61mhz 500mv
122mhz 500mv
245mhz 550mv
576mhz 800mv
768mhz 900mv
1024mhz 1000mv
Click to expand...

http://androidforums.com/triumph-al...eoc-v1-6-14-kernel-mt-isaac-tg-based-cm7.html before "more aggressive undervolting table:", there's a link to restetvoltages for incredivolt
Also, if you set your 576MHz to 775mv, does it reset? If I set mine to 825 or 800, my phone will reset, but at 775 or lower it won't. So could you confirm that for me. I may just be going crazy:confused:
 
dsmryder said:
http://androidforums.com/triumph-al...eoc-v1-6-14-kernel-mt-isaac-tg-based-cm7.html before "more aggressive undervolting table:", there's a link to restetvoltages for incredivolt
Also, if you set your 576MHz to 775mv, does it reset? If I set mine to 825 or 800, my phone will reset, but at 775 or lower it won't. So could you confirm that for me. I may just be going crazy:confused:
Click to expand...

Yes, I set my 576mhz to 725mv and it doesn't reset my phone, but when it's set to 800 it does reset. It's weird because it should be resetting.
 
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