Re: Overclock the N900?
 

I notices that too.. thought the overclock would improve the video recording. I'm running 900mhz with 500DSP but still stuttering with nothing running in the background :(

Re: Overclock the N900?
 

thanks for the advice!

personally i have zero linux experience, but pretty extensive experience overclocking/modding various devices.

but we all have to start somewhere, each individual can decide him/herself whether this is for them to do, or is it that you think the average n900 user is not capable of their own simple decisions?
maybe its just that you would you like to keep the "club" a bit more "exclusive"??

Re: Overclock the N900?
 

I think XP mode is only for pro and above. Figured most people who go 64bit have at least pro since it was only $30 on sale.

Re: Overclock the N900?
 

1 question....
If I overclock my device...lets say to 1700MHz...what can happen in worstcase?
cpu dead?

@flashing with win7 x64: download a ubuntu live cd and do it with ubuntu

Re: Overclock the N900?
 

I guess so. However, you don't even need a PC to flash really.
There is a way to flash directly from N900's xterminal thanks to -miniME- in this thread. (in my guide also)
http://talk.maemo.org/showpost.php?p...postcount=1194

Phone won't boot up. But cpu most likely won't die as it never got the chance to run at such speed for long. Just flash it to a slower kernel and it should come back.

Re: Overclock the N900?
 

Try with faster DSP and report back if you could? If I guess correctly the DSP might be do some of the video recorders jobs.

Re: Overclock the N900?
 

is this kernel flash working in PR1.1.1 i read the guy tested it on 1.1

Re: Overclock the N900?
 

I think the frame clipping issue during video recording may be more due to the use of buffering? (or lack of)

I'm pretty sure 99.9% here are on 1.1.1. (including myself although I did write 1.1sometime back in this thread)

Re: Overclock the N900?
 

fine for me on 1.1.1

Re: Overclock the N900?
 

ok that means I can overclock it and if something goes wrong flash it the original kernel and send it for repairing to nokia

Re: Overclock the N900?
 

Like i said, i'm running the 900mhz with OC DSP 500mhz. Still stuttering :(

Re: Overclock the N900?
 

I'm trying to get my system info back and I have an issue. I did look for the currently installed one via dpkg -l and it looks I need the generic-pr version. Fully consistent with my global firmware I guess.

But when I try to reinstall that package, it tells me "Reinstallation of mp-fremantle-generic-mp is not possible, it cannot be downloaded."

I have all my catalogs enabled, including the Nokia Applications and Nokia System Software Updates ones.

Can anyone shed some light on this ? Maybe someone can attach the PR1.1.1 version .deb for that package here if that's the only (non full flash) solution ?

Re: Overclock the N900?
 

No, because

a) it would be nasty
b) you would not be able to flash a dead device
c) you wouldn't do that anyway as it would be nastty, right?

;)
Corwin

Re: Overclock the N900?
 

900 Mhz with 500 DSP, here, from 48 hours. Very stable, you should trie ...

Re: Overclock the N900?
 

As much as I admire the efforts and hacking per se - please be careful, do not exaggerate it. And - in case the device is broken - no whining :)

Tried the 900MHz Kernel myself for half an hour - might be snappier, but was not so much that I would have stayed with it ;)

Re: Overclock the N900?
 

Heres my thoughts.
People like you should stick to the stock kernels! Theres no way in hell anybody who breaks their device with overclocking should send it to warranty, for the following reasons:

1. If you break the device, you cant flash stock kernel back in.
2. At nokia service they will see that your using non-stock kernel and then figure out its an OC kernel one
2b. At which point they will just send the device back along with a propable bill for wasting their time with a device you broke yourself!
3. Its not right thing to do. Say I buy a new car, then I put in my own tuning fuels and oils, which make the car go faster for a moment but then engine breaks. Do you think it goes to warranty?

So there you have it. I didnt write the warranty void texts there just for fun! People... THINK before you flash any of these in your device.

Re: Overclock the N900?
 

You'd 99% likely get away with this.
Edit: update - if you've got to ask questions like this though you shouldn't be o/cing your n900. "someone on the forum said i'd likely get away with it" will not cut mustard. if the phone is burnt out nokia will not be able to check the firmware and it will just be cheaper for them to send you a brand new one...

Unless loads of idiots start doing it...

...queue 1 week later and every thread on TMO is about how to repair a burnout N900

Re: Overclock the N900?
 

I think of you guys are not understanding the implications that come with overclocking.
Some do not care about CPU life span (bit like me) But if you run a application which max out the cpu then the phone will get really hot and may damange other components near it and including the phone's housing.

I pretty sure 900mhz is stable but when at load there is a lot of heat and battery goes fast, saying that when the phone is in normal use, web/music/calls it seems to be better with battery life with 125mhz range

Re: Overclock the N900?
 

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! It may void your warranty and destroy your data. You have been warned.
You can manually increase the limit until your device fries using, e.g. for 600MHz
The last line shows which value was actually set.
This setting takes effect immediately and is cleared with the next reboot or overriden by
every phone call with the value 600MHz.
To permanently fix a limit you found to be stable edit the scaling_max_freq setting in /etc/pmconfig (e.g., using vi)
and either install the new kernel http://talk.maemo.org/showpost.php?p...postcount=1890
or implement the workaround http://talk.maemo.org/showpost.php?p...postcount=1722
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 is still available).
If it works well for you, please vote at
http://maemo.org/packages/package_in....6.28-maemo19/

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

Good luck!

Re: Overclock the N900?
 

What is the fiasco method?

Re: Overclock the N900?
 

run some apps that are cpu intensive with 1ghz please and tell us how hot the device is getting after 10-15mins also maybe battery report

Re: Overclock the N900?
 

While I agree with your post, I dont really understand why there are so much emotions about this whole OC business ... I mean, you wrote that disclaimer, clearly stating its everybodys risk to use custom kernels, right? From that moment on, its their desicion and ... thats it. If I fry my device using GHz kernel during a hot summer (example) ... well ... me be dumbass, me no phone, me no do again ...

Re: Overclock the N900?
 

I second, that would be great ...

Re: Overclock the N900?
 

that's up to brave volunteers who want to fry their device. I don't want to take that risk.
I used it for webbrowsing and other < 100% stuff.

Re: Overclock the N900?
 

been running 950mhz with 500dsp for a while now and my n900 seems to run really smooth even under heavy load

i would love to try a 1ghz kernel and fry my n900 some more all in the name of tech of course :-)

i love messing about with tech and running experiments on stuff so if anyone can help me getting a 1ghz 500 dsp kernel it would be very much appreciated

hint hint lehto or anyone else that can help me out

pm me if you can help i fully understand the risks etc

thanks in advance

Re: Overclock the N900?
 

mine @ 900mhz psx4all was using 100% it got very hot after 10-15mins.

as an overlocker i know that heat is the main obstacle.

Re: Overclock the N900?
 

yep heat isn't good at all specially in such a small space

i would still love to try the 1ghz with 500dsp for experemental purpose though :-)

shame there isnt a proper benchmark program for the n900 showing heat rise of components etc during the benchmark

that way peeps could find a great medium between power and lifespan

Re: Overclock the N900?
 

When the frequency is changed does the voltage also increase? If this isn't the case then i don't see how you could fry the cpu.

It simply wont boot with the different kernal if the frequency is too high. Just like with a PC, the voltage change is what damages the cpu due to higher temps.

Or it does increase the voltage and this should be disregarded!

Re: Overclock the N900?
 

Everything you need is here

Re: Overclock the N900?
 

idea idea if the device fries..... put it in water for a few hours.. maybe boiling water.. and send it to insurance with a £25 cheque... ohh it fell in the toilet.. too bad :(...

by the way, someone tried running xp as a virtual machine or something with 900mhz or similar??
whats it like??

Re: Overclock the N900?
 

Hello. I have Nokia N900 for Czech Republic. I wrote to X-Terminal: apt-get install --reinstall mp-fremantle-003-pr and there is written: E: Couldn´t find package mp-fremantle-003-pr . WHat I can do? I want to get back firmware informations. Where I can find this package?.. Thanks a lot.

Sorry for my English xD--

Re: Overclock the N900?
 

This is more a driver issue for video and not a cpu issue. If drivers are not written to take better advantage of the DSP, it (DSP) will always be the bottleneck- regardless of CPU speed or 20% bump up of the DSP.

Re: Overclock the N900?
 

Why is it not downscaling to 125mHz?

Re: Overclock the N900?
 

"Overview
The Cortex-A8 high-performance processor is proven in end devices today. From high-end feature phones to netbooks, DTVs, printers and automotive-infotainment, the Cortex-A8 processor offers a proven high-performance solution with millions of units shipped annually.

The processor is particularly suited to high-performance applications.

•Frequency from 600MHz to 1GHz and above
•High-performance, Superscalar microarchitecture
•NEON™technology for multi-media and SIMD processing
•Binary compatibility with ARM926, ARM1136, and ARM1176 Processors"

:D

source

http://www.arm.com/products/processo.../cortex-a8.php

Re: Overclock the N900?
 

Cortex A8 is the architecture, like AMD64. It doesn't have much to do with the silicon. This could also refer to the 36xx series, which is 45nm and designed for higher clockspeed. There are other reasons to suspect that there might be a tolerance for overclocking however.

Re: Overclock the N900?
 

Will flashing using those methods, delete files etc?

Re: Overclock the N900?
 

Lehto, I have done as suggested, alas... no performance gain when recording a video clip.

I will experiment further :)

*Also noted, when in media player, upon deleting clips... the two buttons; Yes/No, have white dots within them, am assuming corruption.

Will try 900mhz stock to see if artifacts are present, and then will try lower speeds.

Re: Overclock the N900?
 

Updated to the kernel from extras-testing, and still running comfortably at 900mhz. The inclusion of idling at 125mhz would be nice, it's set as such in pmconfig (although), yet I don't see it dipping below 250mhz in Conky.

I also cannot "echo 125000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq" without it defaulting back to 250mhz.

I could be misguided, but I imagine this would help to balance the battery life.

Re: Overclock the N900?
 

I wont send it to nokia if it breaks because of overclocking...
It was only a thought I had, what can be the worst case and what nokia can tell about the overclocking

Re: Overclock the N900?
 

Well as I see overclocking your device only avoids waranty if it broke through that. So if your n900 brakes because of the overclocking, waranty of course doesn't count anymore. but if it brakes because of a bad quality, something went wrong with "building" the device, and it has nothing to do with the overclocking, nokia couldn't say anything... I can tune my car with chip to have 500 ps instead of 200 ps. if my radio brakes (bad example) the waranty still is intact, because chipping my car doesn't directly touch the radio. but when my engine brakes because of chipping its my false.
or am i wrong?