maemo.org - Talk - Overclock the N900?

Everithing perfect here running at 900mhz. I can't test wifi (holidays so I'm connected using 3g). microB seems to work without (new) issues.
glTron-full detail smooth now. Sorry I can't test psx4all!
2h 30min of abusive-use-and-3g-connection-overdose with one battery... not bad for me!

fixfox

2010-04-04 09:53

Re: Overclock the N900?

May I humbly suggest that all you "overclockers" don't keep your phones too hot for too long?

I know it's subjective but I'm sure by now you all have a "feel" for how hot it used to get during your regular usage.

Since it has no fan, I'm monitoring it's temperature to reduce load when necessary.

biggzy

2010-04-04 09:55

Re: Overclock the N900?

Quote:

Originally Posted by fixfox (Post 594726)

My n900 has never got hot even befor i overclocked it, i will however revert to stock kernel if i feel any change in heat, but so far so good.

ceroberts75

2010-04-04 10:01

Re: Overclock the N900?

my unit got hot all the time...but i use it almost constantly.

i will definately notice if it gets hotter, or so hot that it burns the material in my pocket and falls on the floor,....melting a hole into the ground and sinking into the melted asphalt like a hot meteor from the sky!

fmo	2010-04-04 10:04

Re: Overclock the N900?

Hi guys,

I think one very important test that you need to run would be to copy files to and from the device and check if you see any corruption happening after overclocking. Use something like ZIP file or anything else were you can spot easily corruption, something that you really don't want happening is your overclocking appearing to work fine but slowly corrupting all of your files (symptoms on videos and audio are glitches).

F2thaK

2010-04-04 10:05

Re: Overclock the N900?

Quote:

Originally Posted by fixfox (Post 594717)

Yes, but mine was idle.. no apps running.

Personally, I have no reason to believe there's been any significant change in the battery usage.
I believe that if more time spent in the higher frequencies, more power will be consumed.

I'm now watching a video stream (Smallville) from surfthechannel[dot]com (the Megavideo links are excellent quality at fullscreen !).

Frequency is at 500Mhz with cpu usage at 60%

it was locked (im pretty sure) but wifi was on....... now i think about it...

michalurban

2010-04-04 10:16

Re: Overclock the N900?

Quote:

Originally Posted by jakiman (Post 594342)

For those who has flashed to 800mhz or 900mhz. You will have to try and stress the cpu to max speed at 100% to see if it is actually stable. Because 90% of the time, the cpu never uses 900Mhz for more than a couple of seconds at a time.

If you want to try about 25 seconds of 100% at max speed, try launching HAM. HAM will use 100% of the cpu at max speed (even at 900Mhz) for the first 25 seconds or so. If this is good, then just try all the usual stuff that you do. The only other apps which may fully max out the cpu constantly are superpi calculations, SETI, game emulators, extracting big compressed files etc.

What program is that HAM, pls?

titan

2010-04-04 10:20

Re: Overclock the N900?

I consider adding under/overclocking support to the community kernel (package kernel-flasher-maemo).
It should be safe to built a kernel that supports the entire 125MHz-1GHz range but only enables 250-600MHz by default.
Unfortunately the kernel boot parameter for the frequency range has been removed
in kernel 2.5.x http://www.mail-archive.com/bk-commi.../msg00015.html

The frequency range can be changed from user space by

Code:

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

echo 250000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq

Does anybody have a patch to add boot parameters for the frequency range?

michalurban

2010-04-04 10:22

Re: Overclock the N900?

Quote:

Originally Posted by Ahmed360 (Post 594624)

OMG....when i started a thread about overclocking long time ago (i made the ^ poll but it was merged with another thread)....everyone was laughing at the idea and saying its not needed and would kill the N900...blah blah

And now...look what happened....everyone is overclocking except ME loool

Okaaaay, need to do some reading....like 47 pages

lol

Myself, I was anxious about this whole OC business from the beginning! :)

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