maemo.org - Talk - 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--

Rushmore

2010-04-06 12:14

Re: Overclock the N900?

Quote:

Originally Posted by dof250 (Post 597537)

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

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.

michalurban

2010-04-06 12:14

Re: Overclock the N900?

Quote:

Originally Posted by titan (Post 597569)

There is a new stable overclockable kernel in extras-testing.
Installation is very simple: install the package kernel-flasher-maemo (section system in HAM) und reboot. There's no need for reflashing etc.

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:

echo 600000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

To permanently fix the limit edit /etc/pmconfig.
Unlike the other kernels in this thread it can also more of use the intermediate frequencies which might be the reason why it is stable for me at 1GHz.

Apart from overclocking, this kernel has a lot of other features
(2.8.26.10, PR1.2 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/

Good luck!

Why is it not downscaling to 125mHz?

Ronaldo

2010-04-06 12:16

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

chowdahhead

2010-04-06 12:42

Re: Overclock the N900?

Quote:

Originally Posted by Ronaldo (Post 597599)

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.

RDK	2010-04-06 12:47

Re: Overclock the N900?

Will flashing using those methods, delete files etc?

Fumanchu

2010-04-06 12:47

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.

Gadgetoid

2010-04-06 12:49

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.

thecube

2010-04-06 12:51

Re: Overclock the N900?

Quote:

Originally Posted by Lehto (Post 597555)

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.

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

moerderameise

2010-04-06 12:58

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?

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