Originally Posted by -miniME-

hi

phone's ip-stack was not working this morning after a one night charging session - wlan was there but no ping possible - my e51 has no problems - and i did not have problems with n900 before with this. restart helped but ...
back to 800 from 900. just for the record.

Originally Posted by sophocha

Also the phone was hotter than stock on 900 when flash content was playing, even for 5 minutes....I wouldn`t recommend it for heavy use!

Originally Posted by That One Guy

OMG! OMG! OMG!

My N900! Holy carp!

I've been running the 900mhz OC image for almost 2 days, and... IT'S STILL STABLE!



Seriously, I don't know what all these naysayers about overclocking the N900 being bad, are on...

Originally Posted by jakiman

I've been running mine at 1Ghz for now 2 days. Zero abnormal symptoms so far. Been using it quite heavily also.

Last night, I was watching about 1 hour of Flash videos directly from youtube via MicroB browser.
Then watched about 30mins of xvid avi video via mplayer. Then played a bit of angry birds before I slept.
That's just the last 2 hours or so betfore I slept.
Then I plugged it into my PC's USB to let it charge overnight.
This morning, watched another 45mins straight of xvid avi file on the train.

But I don't expect everyone to have similar results. As I mentioned in my guide, I reckon only about 1/4 at best would actually be useable and stable at 1Ghz. Maybe I'm lucky. Maybe not. =P

Originally Posted by sophocha

This is like overclocking on the PC....you think that your system is stable until you get a crash on heavy usage....then boom ...it hits you that your system is not stable....this also happens months or years later, when your hardware are stressed, forcing you to drop the frequency down because they can cope with the overclocking.....this is first hand experience from the celeron 800 overclocking days

Originally Posted by titan

There is a new stable overclockable kernel in extras-testing (version 2.6.28-maemo19, not 18!!).
Installation is very simple: install the package kernel-flasher-maemo (section system in HAM), shutdown and cold boot. There's no need for reflashing etc.
It requires firmware PR1.1 or newer.

The default limit is at stable 600MHz. This is the same setting as the stock kernel and is safe.

This kernel makes it possible dynamically change the maximum frequency up to 1.2GHz (supported frequencies are 250,500,550,600,700,750,800,850,900,950,1000,1100, 1200MHz)
WARNING: Overclocking may damage your device and is at your own risk!
You can manually increase the limit until your device fries using, e.g. for 600MHz

Code:

sudo gainroot
echo 600000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

The last line shows which value was actually set.
This setting takes effect immediately and is cleared with the next reboot.
To permanently fix the limit edit the scaling_max_freq setting in /etc/pmconfig (using vi).
WARNING: Permanent overclocking is very dangerous!

Apart from overclocking, this kernel has a lot of other features
(2.6.28.10, PR1.2 SDK patches etc) see http://talk.maemo.org/showthread.php?t=43420
It also retains the version info in Settings -> Product info.
If it works well for you, please vote at
http://maemo.org/packages/package_in....6.28-maemo19/

PS: 125MHz is deliberately not included, see http://talk.maemo.org/showpost.php?p...&postcount=141

Good luck!

Originally Posted by firstknight

is there a way to use desktop widget execution widget for the change?"

Originally Posted by sophocha

Bummer!....me too, 900 was good but my phone isn`t fully stable at that speed

Originally Posted by Andy214

I think it's better to double-triple check and test to verify if it's because of the clock speed or it just that particular moment.
Even at 600Mhz, I do have occasional instability or slow/hang, MicroB crash, etc.

I wouldn't jump to conclusion it was the clock speed issue unless something is really wrong.
It might also be what apps you have installed.

Perhaps if someone really want to confirm their device is the limitation, flash the device completely (that means, clean flash) then OC and see if it's acting the same. I'd say most probably there won't be any more issues.

Another thing about temperature/heat. I read from other forums which the device having same ARM Cortex A-8, they also did similar OC from 600Mhz up to 1Ghz.The "experts" there gave different opinion about the heat, they said it's rarely the processor, the heat is most probably caused by the "battery". Maybe someone who experience heat can confirm?
E.g. power off, remove the battery and see which is the heat source.