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Poll: Do you think its possible to overclock the N900?!
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Do you think its possible to overclock the N900?!

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AlMehdi is offline AlMehdi
2010-04-22 , 15:41
Posts: 1,751 | Thanked: 844 times | Joined on Feb 2010 @ Sweden
#3231
Originally Posted by dimkit View Post
Im using titans power maemo flasher 24 and when ever i charge my phone , it resets the frequency to 600mhz.
Is this a bug or i am doing something wrong
Might be a bug.. have not seen it before. Change to the latest kernel25 to see if it fixes the problem.
 
nokian-series is offline nokian-series
2010-04-22 , 15:43
Posts: 169 | Thanked: 41 times | Joined on Apr 2010 @ Portugal
#3232
I can share it to you but..i've a problem after reflash my device..i've opened a thread to that but no ones seems to understand, actually, i cant understant it to.

The problem is, i've to set permissions RWX on /Sys/.../CPUFreq/ folder, everytime i boot, to get all of that buttons to work.

Tonight i'll try to make a script to do it automatically (the permissions).

Originally Posted by gabby131 View Post
that's what im talkin about.

queen beecon is really useful

would you mind sharing the code for your temp? cant get the awk command right, and sometimes show a -40 after a cold boot.

thanks
 

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gabby131 is offline gabby131
2010-04-22 , 15:54
Posts: 1,729 | Thanked: 388 times | Joined on Jan 2010 @ Canada
#3233
Originally Posted by nokian-series View Post
I can share it to you but..i've a problem after reflash my device..i've opened a thread to that but no ones seems to understand, actually, i cant understant it to.

The problem is, i've to set permissions RWX on /Sys/.../CPUFreq/ folder, everytime i boot, to get all of that buttons to work.

Tonight i'll try to make a script to do it automatically (the permissions).
yikes!

hmmmm....still the same problem eh?
permission denied, and at your desktop everything looks fine but you need to type a command on /Sys/.../CPUFreq/ in every boot,

why dont you put that code (or whatever you do) for the permissions on the queenbeecon app?

well the command i use in Temp is:

Code:
awk ' print $1/1" Celcius" ' /sys/devices/platform/omap34xx_temp/temp1_input
and it shows a -40 ºC!!! men! CPU Freeze!
Last edited by gabby131; 2010-04-22 at 16:18.
 
nokian-series is offline nokian-series
2010-04-22 , 16:24
Posts: 169 | Thanked: 41 times | Joined on Apr 2010 @ Portugal
#3234
The code i use is:

sudo modprobe bq27x00_battery
echo Temp: `cat /sys/class/power_supply/bq27200-0/temp`°C

hope it helps.

Originally Posted by gabby131 View Post
yikes!

hmmmm....still the same problem eh?
permission denied, and at your desktop everything looks fine but you need to type a command on /Sys/.../CPUFreq/ in every boot,

why dont you put that code (or whatever you do) for the permissions on the queenbeecon app?

well the command i use in Temp is:

Code:
awk ' print $1/1" Celcius" ' /sys/devices/platform/omap34xx_temp/temp1_input
and it shows a -40 ºC!!! men! CPU Freeze!
 

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dimkit is offline dimkit
2010-04-22 , 16:32
Posts: 59 | Thanked: 7 times | Joined on Jan 2010
#3235
i use the latest power flasher 25 and when i try to enable lv settings(with the command /usr/sbin/kernel-load /usr/share/kernel-power-settings/lv) my frequency reset to 599 . (it is not the charger as i was previous think). how can i fix this ?
 
egoshin is offline egoshin
2010-04-22 , 18:19
Posts: 992 | Thanked: 995 times | Joined on Dec 2009 @ California
#3236
Originally Posted by firstknight View Post
darn so how do I fix this??
Simple way - reflash root FS and kernel (don't forget to backup).

More difficult way - look into each 3rd party application which you did install (even if you removed it). Especially stuff from extra-devel.

You can start looking files in /var/lib/dpkg/info. Any file can remind your an application name.
 
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esthreel is offline esthreel
2010-04-22 , 19:20
Posts: 259 | Thanked: 55 times | Joined on Apr 2010 @ Vilnius, Lithuania
#3237
I looked trough wiki, ant the max voltage 1.35V on default Nokia setting. So if I am runinng at 1.2V am I still killing my CPU? (I thought overvolting kills it)
 
nightfire is offline nightfire
2010-04-22 , 20:44
Posts: 310 | Thanked: 383 times | Joined on Jan 2010
#3238
Originally Posted by esthreel View Post
I looked trough wiki, ant the max voltage 1.35V on default Nokia setting. So if I am runinng at 1.2V am I still killing my CPU? (I thought overvolting kills it)
There are two methods of killing a CPU. One is dielectric breakdown caused by overvoltage (which is quick, not cumulative, and won't happen in your case), and other is thermal stress. Thermal stress is cumulative; every time the CPU heats and cools, it expands and contracts. Eventually traces will crack, diodes will shatter, etc.

Whether you're running at 1.2V or 1.3V makes little difference thermally; it's a question of load. If you idle your CPU at 1.3V, it won't dissipate much heat at all. If you run full load @ 1.2V, it'll dissipate tons of heat. All things being equal, the higher the voltage, the higher the heat dissipation at a given load. So it's a complicated question.
 

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Gusse is offline Gusse
2010-04-22 , 20:57
Posts: 168 | Thanked: 206 times | Joined on Apr 2010 @ Finland
#3239
Originally Posted by izdroid View Post
Im using titans maemo24 with ideal settings running at 500-850MHz default.

Will it have a positive effect on battery life and CPU safety if I change to 250-805MHz???
I have made couple of CPU setting scripts with Queen Beecon application to improve battery life.

For daytime (i.e active use) CPU: 500 - 850MHz.
For nighttime (i.e. idle, etc...) CPU 125 or 500MHz

And some statistics:
During nighttime, CPU spend over 95% on 125MHz (@ VSEL = 20)

Battery-eye shows pretty flat graph
 
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esthreel is offline esthreel
2010-04-22 , 23:05
Posts: 259 | Thanked: 55 times | Joined on Apr 2010 @ Vilnius, Lithuania
#3240
Originally Posted by nightfire View Post
There are two methods of killing a CPU. One is dielectric breakdown caused by overvoltage (which is quick, not cumulative, and won't happen in your case), and other is thermal stress. Thermal stress is cumulative; every time the CPU heats and cools, it expands and contracts. Eventually traces will crack, diodes will shatter, etc.

Whether you're running at 1.2V or 1.3V makes little difference thermally; it's a question of load. If you idle your CPU at 1.3V, it won't dissipate much heat at all. If you run full load @ 1.2V, it'll dissipate tons of heat. All things being equal, the higher the voltage, the higher the heat dissipation at a given load. So it's a complicated question.
Thank you for the info, good explanation. So there are warnings all around about overclocking shortening your nokias life. But if you are not overvolting it and thermal stress is usual thing (stock voltage is even higher which means more heat under load, more thremal stress at 100% load) If I am not misinterpreting your post, the custom kernel voltages and MHZ are even healthy for your device, of atleast not harmful if you have a good chip that works undervolted at 850Mhz with no errors even if it was not designed to.
 
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