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-   Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)
-   -   Overclock the N900? (https://talk.maemo.org/showthread.php?t=39753)

Icyseanfitz 2010-04-02 02:14

Re: Overclock the N900?
 
interesting thread :) i have a dell m1730 laptop that came with an overclocking application as standard 2.8 up in .2 intervals to 3.6 its a dual core processor, my laptop is crammed with stuff and doesnt have much room to breath but ive been using it overclocked at 3.2 for over 2 years and no problems,
overclocking is not that dangerous you just have to be carefull not to do anything stupid like overclock the n900 straight up to 1.5 that would fry it.
hell if some people are willing to try it why not whats life without a bit of risk :)

Lehto 2010-04-02 14:11

Re: Overclock the N900?
 
Quote:

Originally Posted by Icyseanfitz (Post 592141)
interesting thread :) i have a dell m1730 laptop that came with an overclocking application as standard 2.8 up in .2 intervals to 3.6 its a dual core processor, my laptop is crammed with stuff and doesnt have much room to breath but ive been using it overclocked at 3.2 for over 2 years and no problems,
overclocking is not that dangerous you just have to be carefull not to do anything stupid like overclock the n900 straight up to 1.5 that would fry it.
hell if some people are willing to try it why not whats life without a bit of risk :)

Overclocking to 1500mhz would just simply turn the phone into a brick instantly, it wouldnt even boot with such mhz.

I looked through the kernel sources and didnt find anything of interest. By looking at what the android guys did I found out that our clocks arent controlled in such simple manner. Though I didnt understand much of the code in there.

Icyseanfitz 2010-04-02 15:22

Re: Overclock the N900?
 
thats what im saying, if overclocking is done in moderation it can be alright just keep increasing in small intervals until you find the point were the phone starts to get abnormally hot and or starts to malfunction

keljuk 2010-04-02 15:36

Re: Overclock the N900?
 
I'm looking forward to this! :) My desktop pc is oc'd from 1,6ghz to 3,1ghz and it's rock solid.
Omap3 should handle the extra 200 mhz just fine and it'd prolly be enough to make the n900 experience much smoother.

Taigatrommel 2010-04-02 15:37

Re: Overclock the N900?
 
I say it is not needed. Higher CPU clock usually leads to higher power consumption and even at stock clock the battery capacities of the N900 aren't something to cheer about to say at least. Also I think there still is room for software based improvements in terms of speed and reaction, so there is no need yet to pull out the hardware-mace.

stano 2010-04-02 15:49

Re: Overclock the N900?
 
frequencies and voltages are in kernel in file
arch/arm/mach-omap2/omap3-opp.h

i was able to overclock the phone to 800Mhz, boot it without problem and using it for 5 minutes
but i am hunting longer battery life instead of speed, so i am running kernel with 125Mhz enabled
(125,250,500,550,600) instead of (250,500,550,600)

keljuk 2010-04-02 15:54

Re: Overclock the N900?
 
Quote:

Originally Posted by Taigatrommel (Post 592737)
I say it is not needed. Higher CPU clock usually leads to higher power consumption and even at stock clock the battery capacities of the N900 aren't something to cheer about to say at least. Also I think there still is room for software based improvements in terms of speed and reaction, so there is no need yet to pull out the hardware-mace.

I find it hard to believe that nokia will keep optimizing maemo5 when they're migrating towards meego.
And higher clock frequenzy doesn't necessarily increase the power consumption on a mobile device as much as it does on pc.
Overclockin a device like this would only push the highest available frequency so it would consume more power, but it would do so in shorter perioids.

keljuk 2010-04-02 15:59

Re: Overclock the N900?
 
Quote:

Originally Posted by stano (Post 592745)
frequencies and voltages are in kernel in file
arch/arm/mach-omap2/omap3-opp.h

i was able to overclock the phone to 800Mhz, boot it without problem and using it for 5 minutes
but i am hunting longer battery life instead of speed, so i am running kernel with 125Mhz enabled
(125,250,500,550,600) instead of (250,500,550,600)

That was quick :)
Say, would it be possible to boot to another maemo5 os from sd-card to check if 800-900 mhz is stable?

attila77 2010-04-02 17:07

Re: Overclock the N900?
 
Quote:

Originally Posted by stano (Post 592745)
but i am hunting longer battery life instead of speed, so i am running kernel with 125Mhz enabled
(125,250,500,550,600) instead of (250,500,550,600)

Do you have some test data for 125 ? I had this dispute with some folks and there was a notion that on N900 style devices you don't actually win anything with 125 except for some very specific usage scenarios.

titi974 2010-04-02 17:19

Re: Overclock the N900?
 
so you actually did it as i can see ? any changes in smoothness ?


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