Re: Overclock the N900?
 

I tried it, was horible lol

Re: Overclock the N900?
 

Hi ... just flashed mine to 930 Mhz and my phone smelled burnt inside because it heats up much more now, it is still working though. pretty amazing because there is no lag on drnoksnes now, browser loads up instantaneously, almost no lag in openarena, accessing contacts is instant as well, very snappy.

phone version can't be recognized by "about" from settings

I'll let you know if I'll ever encounter problems with it.

Re: Overclock the N900?
 

Flashed mine to 900MHz, and adjusted /etc/pmconfig (with SmartReflex on)... after the reboot I've got corrupted animation and reboot loop. USB flash to 800 remediated the issue :-) Great stuff!

Re: Overclock the N900?
 

woah! what you had did on it?

Re: Overclock the N900?
 

I think 800 would be perfect, I don't really like the smell of my phone now at 930 mhz. if nothing happens with my phone till tomorrow I suppose it's safe? to use 930, but still under our own risk.

Re: Overclock the N900?
 

If it smells burnt and is hot then id recomend using a lower mhz before you cook ur n900

Re: Overclock the N900?
 

it smelled burnt just after I ran more than 10 applications at once.it's probably because of just too much heat. also one good thing is that if you have easydebian and if you run openoppice.org, less than 20 seconds it loads up contrary to a couple of minutes loading before the overclocking.

so far so good, no bad news yet. watching a movie now on my n900 while several applications running on the background.

Re: Overclock the N900?
 

This thread keeps reminding me of the "smoke test" of tech tradition. When building or repairing something, you "give it the smoke test," meaning that you power it up, and if you see smoke, you power it back down again, because you have probably done something wrong.

I like the idea of the smoke test; it implies the knowledge that you might make mistakes, but the determination to move forward and find out, ready to back out if things look bad.

Of course, the N900 might not survive many failed smoke tests, but mine still seems in great shape. I have a feeling that it will be working fine a few years from now, which is all I hope for. By then it probably won't be my main handheld computer.

Re: Overclock the N900?
 

If my phone smelled funny, I would stop running at that speed. There is no such thing as "Oh, I was running ten apps at once so it overheated too much," at least not for me. If my N900 starts noticeably overheating, I'm dropping to a lower speed right now.

Re: Overclock the N900?
 

@geneven, it's just my theory, I might be wrong with that. Anyway whoever made this overclocking tweak ... thank you very much!. My n900 seems the best phone in the world,

I decided to stay at 930 mhz now, I believe it's pretty stable now.

Re: Overclock the N900?
 

Oh, hey, I just noticed something. When I ran the fix for the unknown version problem it reintroduced the "-40" temp problem. Removing the battery fixes that.

Re: Overclock the N900?
 

Please any1 telle me where is the tuto for overcloking the N900 and where are thes kernel images? I can't found them in the 1st post and it's hard to find them in a 1000+ posts topic

Re: Overclock the N900?
 

just played a game ob psx4all, phone seemed to be 100%@900mhz and phone got really hot, bit hot for my liking

Re: Overclock the N900?
 

see my signature

Re: Overclock the N900?
 

how long was you playing? and where was the heat felt? on keyboard? thanx

Re: Overclock the N900?
 

around 15-20mins yeh keyboard and the bottom.

Re: Overclock the N900?
 

I'm running at 850MHz with 450MHz DSP.

Decided to use dbus-scripts to limit it to 250MHz while charging, and it seems to make priority attempts to lock it when I plug in the charger, and then when I unplug I've allowed it to hit 850. I don't need the clock ramping up to anything over 250 really, since I only charge it while sleeping.

I've also got anacron setup to throttle it back when I know I won't be using the device (certain locations in class, I get no signal and usually have my laptop anyways).

It would also be trivial to make a small QT app with a slider, that would set the speed ceiling at certain times, having an option to use the proximity sensor and accelerometer to only allow throttle unlock when the device is out of pocket and in hands.

Re: Overclock the N900?
 

Id keep my eye on that, you dnt want to cook it

Re: Overclock the N900?
 

Right. If the keyboard is hot I suspect that is the CPU whereas if its the bottom, more likely to be the battery. The WiFi chipset probably also gets fairly hot which is why Joikuspot is so bad for heat, as it heavily uses WiFi and the CPU, likely the two biggest heat sources. On battery power you add a third, a battery draining fast gets pretty hot.

That's why it makes me laugh when people say "it doesnt feel any hotter". Its stuck inside fairly thick plastic, on the bottom its behind the battery AND plastic, so you shouldn't be able to feel it until its REALLY hot internally.

As for the person with the droid and GPS problems. They admitted to leaving it in direct sunlight, overclocked, heavily using GPS. Anyone leaving electronics in direct sunlight deserves any failures they get, its just plain stupid. You only get away with it on standalone GPS devices as they are usually really REALLY slow CPUs, but you will still destroy the plastic as it perishes in direct sunlight. I have seen old CRT PC monitor cases discolour and shatter due to exposure to direct sunlight.

Re: Overclock the N900?
 

If your device is hot enough to emit gasses you can smell, you are done cooked to some degree. Unless it was the battery emitting the smell.

I have played MAME and PSX4ALL for over an hour with no heat issues at 800mhz. I can not distinguish a heat difference from 600mhz. That being said, I will not clock beyond 800mhz. Happy with the current speed, so no need to gamble further.

Re: Overclock the N900?
 

Can we have something like this which is available on the droid?

An app to control the clock speed...
http://rootyourdroid.info/guides/ove...ing-the-droid/

On my Dell PocketPC, I can adjust the clock speed too something like the Droid's app, but not for OC, more like limit the clock speed.

Re: Overclock the N900?
 

The pristine source:

http://talk.maemo.org/showpost.php?p...&postcount=309 :rolleyes:

Re: Overclock the N900?
 

thats what i'v been asking, use a custom kernel which is supported by app that allows user to set range from 600mhz-900mhz

Re: Overclock the N900?
 

Re: Overclock the N900?
 

.
Lehto is genius ..!, is the man .., is the god of the N900 ..;).

And this link became our brick in a workstation ..

Re: Overclock the N900?
 

We now definitely need these 3 apps: (all or at least some of them)

1. An app to control the overclock. (somehow)
2. A desktop widget to monitor cpu temp and clock down if specified temp is reached.
3. An app to monitor cpu usage and show alert, then if alert ignored,, shutdown if cpu is maxed at 100% for a specified amount of time.

Re: Overclock the N900?
 

That worries me pretty much - sometime my (not-yet-overclocked) N900 is pretty hot and stay that until switch OFF/ON. I suspect SGX but who knows...

Re: Overclock the N900?
 

thanks once more! This is what I`m talking about....community work! I`m running mine @ 900 no problems at all....everything is super fast and scrolling is from another world now....amazing!

Re: Overclock the N900?
 

Looking at the app for Android, it has many options such as CPU Governor and profiles which will control the CPU clock speed based on certain conditions (e.g. Charging, Sleep/Standy, Power < 30%, Failsafe Profile, etc).

The app are indeed very well thought out and awesome.

I would say, instead of critisizing OC on the N900, might as well create an app that have a set of controls like the Androids. It was also able to cater for various chipsets/devices. Plus, it has AUTO-DETECT feature which can detect the max clock speed for certain device/cpu.

This is what N900/Maemo should have too!

http://rootyourdroid.info/guides/ove...ing-the-droid/

Re: Overclock the N900?
 

+1 . this is a good idea

Re: Overclock the N900?
 

Once you overclock your device, does your N900 still update the firmware automatically?

Re: Overclock the N900?
 

I have PR1.1 but due to fiddling around with some mafw plugins, it uninstalled some PR1.1 stuff.
Since then, I see Maemo5 PR1.1 update available HAM. Even with overclocked kernels.
I can't install it right now as I don't have enough free rootfs. =P

Anyways, to answer your questions, I'm sure the OTA update will show up and install fine still.

Re: Overclock the N900?
 

kernel update is split into two packages - kernel and kernel-flasher. Because of that the update process has no chance to detect that you replaced a stock kernel (md5 checksum is not applied to burned kernel image).

So, it will silently replace your kernel.

Re: Overclock the N900?
 

hi

ok - did an on-device flash of the kernel :

* do a backup, have a pc nearby and know you are able to flash the n900 with flasher-3.5 - just in case
* on device :
- start "softupd -vv -s --local" within xterm as root (thats double v)
- open new terminal
- start "flasher --local -f -k <kernel_zimage_file_with_path>"
- you see the flashing - some secs
- type "sync" to be save all is stored to the discs
- type "reboot" and enter to restart

ciao and good luck

ps: the 800mhz kernel is not that much faster - than a 600mhz. i leave it anyway as it may increase battery life - i am not such a gamer - so probably the effect in overclocking is not dramatic then !

Re: Overclock the N900?
 

I was just wondering.. is there a way to OC the graphics chip? PoverVR SGX530? I have a video compressed with xvid at 1.6 Mbps and the playback isn't smooth even though the cpu usage is about 80 % (900/500 MHz kernel). Would overclocking vga help? I know that the extra heat would probably fry the phone, I'm just curious.

// Never mind, xvid is probably badly optimized. h264 at 2 Mbps average L3.0@baseline plays just fine even at stock cpu/dsp.

Re: Overclock the N900?
 

dude just use this someone helped me find it it will suit your needs
http://www.formatoz.com/index.html
on other note

can someone link me to the post on how to flash new kernel or quote,or copy and paste in here i would really be thankful

Re: Overclock the N900?
 

Hm-m, "softupd -vv -s" prints error like

ERROR: ioctl(SIOCSIFMTU): No such device
ERROR: Unable to open gadget ISI communication device.

What IP interface it tries to open?

EDIT: never mind, just use

softupd -vv -s --local

Re: Overclock the N900?
 

I've just found this info for the Palm Pre which has the same CPU specs like the N900. Can someone confirm the above mentioned numbers?

Re: Overclock the N900?
 

44k hours is still 5 years and its not going to be running at that speed 100% of the time unless you use your phone maxed 24/7 and dont sleep!

One thing is for sure in my case. I wont be using this phone in 2 years. there will be something better about.

Id be happy with 20,000 hours cpu lifetime so overclocking isnt a problem for me.

Hopefully i wont burn it out until Q4 when something better will be available :)

Re: Overclock the N900?
 

Without SmartReflex enabled, isn't the processor always operating at the highest voltage (OPP5)?