Originally Posted by fixfox (Post 599100)

I don't think it's for anyone to convince others about this.

Originally Posted by Casp3r (Post 599054)

What's that transitions.ini file?

Originally Posted by rpgAmazon (Post 599082)

So you are right when you don't overclock it, and I'm right overclocking, having in mind that I assume a very short lifetime for my Lehtokia n950 (but a happy lifetime).

Originally Posted by tidusuk123 (Post 598435)

Hi People. Firstly would like to say thanks to all the people who invest their time and effort into making all this happen and helping everyone. So thanks.

I'm having a problem setting the CPU clock speed permanently.

I used this to overclock to 1GHZ:

sudo gainroot
echo 1000000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

but how do I set it permanent? I don't understand this bit:

To permanently fix the limit edit the scaling_max_freq setting in /etc/pmconfig (using vi).

Sorry I know this must be a really silly question. Could someone write down the code if that's what it is? Thanks.

Also is this an alternative way to overclock or better than the first way that was introduced using the Maemo Flasher program?

Originally Posted by tidusuk123 (Post 599235)

Hi guys. Sorry for the double post but can anyone help me on this? Thanks.

Originally Posted by tidusuk123 (Post 599235)

Hi guys. Sorry for the double post but can anyone help me on this? Thanks.

Originally Posted by Rushmore (Post 599249)

OC observations after 2 days at 800mhz kernel (no DSP OC)

1. Conky is our friend, since provides us insight :)
2. Built in media player is a resource hog (50 to 60% playing 160kb MP3?!)
3. Canola has better volume and folder options for media, but takes 60 to 70% cpu (bleh)
4. Played Duke Nukem several times (longest one hour). No heat issues compared to 600mhz- seems the same.
5. Helps PSX4ALL and MAME a bunch :)
6. Nice bridge for Flash until 10.1 is released (I may go down to the 700 mhz when it is).

Of course, for all good things, there tends to be bad things. Battery drains quicker for a device that already is battery life challenged. Wifi on, playing Duke N, playing a few Flash games, watching a few Flash vids and browsing the web- less than three hours before needed a recharge.

All said, it would be better for Nokia to release a more efficient version of the OS, Flash 10.1 beta and better audio and video drivers, rather than tweet about not OC the N900. Most of us simply want the device to perform as it does when OC'd.

Originally Posted by eitama (Post 599259)

Just food for thought, after (hypothetically) they make the device so it runs @ 600MHz like it runs now @ 800 MHz, will you be tempted to OC it again to 800 and post the exact same thing? (;

(Don't get angry I can relate to your post 100%, I am just kidding).

Originally Posted by eitama (Post 599248)

"vi" - File editor that is apart of almost every linux distribution,
among those is the one on the n900.
vi uses some odd keyboard shortcuts to get around, the advantage is that when you get used to it, it's far superior than notepad.

You need to edit a file called pmconfig, which is located in side /etc
to do that, go tp applications on your phone : (make sure you have rootsh installed 1st)
1. Start X Terminal
2. Type : sudo gainroot
2.5. Backup your file, "cp /etc/pmconfig /etc/pmconfig.old"
2.8. To restore : "cp /etc/pmconfig.old /etc/pmconfig"
3. Type : vi /etc/pmconfig - you can now move around with the arrow keys, but you cannot edit the text yet.
4. Locate the cursor where you want to insert text, press "i".
5. You are now in edit mode, be careful in what you are doing - you can type in new letter, and delete with backspace and delete, write in what you need, press ESC.
6. You are not out of edit mode, make sure you did what you needed to do, to save and exit the file you press : ":wq" (with the ":") and ENTER.

It's not "code" just bash commands, like you had batch commands in DOS.

Originally Posted by tidusuk123 (Post 599288)

]

Thanks a lot. Finally getting somewhere. It's just the last bit where you save and exit. I must be doing it wrong but after pressing ESC where do I type the ":wq"? I typed it in and nothing happens...

Originally Posted by biggzy (Post 599314)

can a CPU guru answer me a question plz? what i want to know is what stresses a CPU more, running at max frequency or maxing the usage of the CPU to 100%? and whats the dif between frequency and usage? thanx v much to anyone that can answer

Originally Posted by Flandry (Post 599322)

Those are obviously connected issues. You overlooked voltage, which is the real cause of the damage. The way the CPU works, it jumps to a higher voltage to make sure that the highest CPU setting is stable, and the setting for the highest voltage on the N900 is already "overclocked" in the sense that it is known to reduce operating life.

What should be discussed in this thread is how to reduce the operating voltages and run at the same (or maybe slightly higher) clocks. That would increase battery life and not adversely affect phone life.

Everything is connected, so running at full CPU speed for long periods of time, which will heat it up, will accelerate damage to it. How much and how fast it heats up obviously depends on the maximum speed you have set, and the voltage it operates at for that speed--and your particular CPU.

Originally Posted by Rushmore (Post 599353)

Have you tried any OC action yet, or plan to?

BTW, lower volt kernels are already proven to work on the 3430 (Droid). There are three different types of kernels and different clock ranges, but most chose the low volt version.

SetCPU is also very nice, since can dynamically control clock profiles while charging, usb, low on battery, etc.

Originally Posted by Flandry (Post 599322)

What should be discussed in this thread is how to reduce the operating voltages and run at the same (or maybe slightly higher) clocks. That would increase battery life and not adversely affect phone life.

Originally Posted by Matan (Post 599371)

You can try using my patch - http://my.arava.co.il/~matan/770/n900/freqs.diff

It reduces the voltage for the frequencies 550 and 600 to OPP3 level (the one used for 500 in Nokia's kernel, and uses OPP4 level for 720-1000 (the same level as originally used for 550). Highest level (OPP5) which is used for 600 in Nokia's kernel, is not used at all in my patch. Of course, the result will be lower maximum frequency in some CPUs, but my is stable at 1000MHz even at this lower voltage.

Originally Posted by eitama (Post 599248)

"vi" - File editor that is apart of almost every linux distribution,
among those is the one on the n900.
vi uses some odd keyboard shortcuts to get around, the advantage is that when you get used to it, it's far superior than notepad.

You need to edit a file called pmconfig, which is located in side /etc
to do that, go tp applications on your phone : (make sure you have rootsh installed 1st)
1. Start X Terminal
2. Type : sudo gainroot
2.5. Backup your file, "cp /etc/pmconfig /etc/pmconfig.old"
2.8. To restore : "cp /etc/pmconfig.old /etc/pmconfig"
3. Type : vi /etc/pmconfig - you can now move around with the arrow keys, but you cannot edit the text yet.
4. Locate the cursor where you want to insert text, press "i".
5. You are now in edit mode, be careful in what you are doing - you can type in new letter, and delete with backspace and delete, write in what you need, press ESC.
6. You are not out of edit mode, make sure you did what you needed to do, to save and exit the file you press : ":wq" (with the ":") and ENTER.

It's not "code" just bash commands, like you had batch commands in DOS.

Originally Posted by ticktock666 (Post 599514)

Strange, I did exactly this, but the changes are not sticking, after reboot it reverts cpu speed back to 600 (from conky) even though when I check the pmconfig file it shows that the sample_max_freq is set to 750000, any ideas what would be the problem here ? :(

Originally Posted by ticktock666 (Post 599514)

Strange, I did exactly this, but the changes are not sticking, after reboot it reverts cpu speed back to 600 (from conky) even though when I check the pmconfig file it shows that the sample_max_freq is set to 750000, any ideas what would be the problem here ? :(

Originally Posted by titan (Post 599560)

editing /etc/pmconfig works fine for me. it sets it to 700MHz on my device during booting.

Originally Posted by Lehto (Post 594200)

Ultimately you guys should use titans or Matans kernels, they know their stuff much better than I do. The information about those rests somewhere in this thread.



READ BEFORE FLASHING NEW KERNEL!!!

I CANNOT BE HELD RESPONSIBLE FOR WHATEVER HAPPENS AFTER YOU'VE DOWNLOADED THE FOLLOWING FILE. YOUR ON YOUR OWN. THE DEVICE COULD BE RENDERED BROKEN, USELESS OR SOME OTHER WAY LIMITED!!! ALSO NO HELP WILL BE PROVIDED BY ME TO FLASH IT TO YOUR PHONE.
YOU WARRANTLY WILL BE VOID AFTER FLASHING ONE OF THESE IN YOUR PHONE
YOU HAVE BEEN WARNED!!!

Your phone will nolonger be recognized by the "settings - about" correctly.

Nokia Software updater no longer functions as a firmware updater. You will have to use the same tool you flashed new kernel with to flash newest update (Dont know if OTA works yet!)


Have fun, dont break your device!




Here be the dragons. Little differently tweaked kernels with DSP oc also or just considered very unsafe. Doubt it makes any difference at all. (Do NOT try these unless you are absolutely certain!)







The faster kernels will come later if nobody reports a dead device in a week.



Little infos on these kernel files:
1. They will make the about page say <unknown> for the hardware and software.

2. There is an additional speed step down from 250mhz. So instead of 250mhz idle it now sits @ 125mhz idle with lower voltage.
125/250/500/550/xxx
instead of
250/500/550/600

3. Your sacrificing machine lifetime by running it overclocked and stressing it at 100% for longer periods of time.

4. Everything will feel faster and is faster.

5. The fastest kernels might not work on your phone, this is purely down to luck of how good chip you've got in your phone. Climate affects it also along with many other variables.

6. This requires only flashing the new kernel in, the phone setups and apps will stay. Only the clock speed increases.








Some behaviour I've seen when playing with clockrates... this might just be my inexperience.

1. The N900 seems to prefer the 125 , 500 and the highest speeds and rarely enters the middle speeds like 250 and 550 with OC kernel.

2. If I set 550 speed (second fastest) to anything faster than 599mhz the phone seems to stop using the fastest mode and instead reverst to the OPP4 state.
So best compromise seems to be the 125/250/500/595/900 kernel.
2b. After getting a hint from another finnish person through PM about the /etc/pmconfig and its max frequency I edited it to 1030mhz and set the second fastest speed at first to 650, then to 700 and lastly to 775mhz and I see absolutely no difference in behaviour. The phone just discriminates the second fastest mode and rarely ever uses it.





Im still learning and my learning curve could be expensive so dont just automatically flash the fastest kernel found here. It CAN have nasty drawbacks. PLUS there are people far more knowledgeable than me, so hopefully they will take over this eventually and write us proper SetCPU like software.



If and when you get angry of the OC kernel. Here is how to flash back the original nokia built kernel.

After installing the new kernel, run this! This gets you back the about information.

Originally Posted by michalurban (Post 597874)

Just installed your experimental 125-1200 kernel, works great, thx! :) Im gonna write a simple script setting the upscale and downscale freq, after that Ill upload it.

Originally Posted by firstknight (Post 599593)

I got a question or somethin i am encountering...

I have upscale to 800 but after some time it will go tback to 600 even when i checked it... is this usual???

TITAN??