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Poll: Do you think its possible to overclock the N900?!
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Do you think its possible to overclock the N900?!

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DaSilva is offline DaSilva
2010-06-05 , 20:32
Posts: 729 | Thanked: 155 times | Joined on Dec 2009
#4401
I have a strange problem with under/overclocking:

Always when I try another profile than default (starving and XLV tested) the phone starts to stutter and is slower/less responsive even with overclocking (tried it up to 850Mhz) than with default settings!
Now I have overclocked my N900 up to 750Mhz with the default settings (kernel-config limits 250 750) and it doesn't have this stutter effect but I cannot save energy with low energy profiles.
Which setting in those profiles could cause this and how can I fix it?

I tried to get this working but even after a reboot it doesn't do anything. What could be wrong?

Thanks for help.
 
gabby131 is offline gabby131
2010-06-05 , 20:39
Posts: 1,729 | Thanked: 388 times | Joined on Jan 2010 @ Canada
#4402
Originally Posted by DaSilva View Post
I have a strange problem with under/overclocking:

Always when I try another profile than default (starving and XLV tested) the phone starts to stutter and is slower/less responsive even with overclocking (tried it up to 850Mhz) than with default settings!
Now I have overclocked my N900 up to 750Mhz with the default settings (kernel-config limits 250 750) and it doesn't have this stutter effect but I cannot save energy with low energy profiles.
Which setting in those profiles could cause this and how can I fix it?

I tried to get this working but even after a reboot it doesn't do anything. What could be wrong?

Thanks for help.
stutter is a normal......problem, maybe try your freqs to 500/xxxxMHz
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N900: 1000/1150mhz; sampling_rate 15; up_threshold 150000;
 
DaSilva is offline DaSilva
2010-06-05 , 20:50
Posts: 729 | Thanked: 155 times | Joined on Dec 2009
#4403
No, it is not the normal stutter it is something worse. Mobile Maps is not able anymore to speak fluently and the phone feels slower than with the default settings which means there must be something wrong with the tested profiles (starving and XLV) on my phone because it doesn't have this stutter effect with default mode and overclocking.
 
Crashdamage is offline Crashdamage
2010-06-05 , 20:51
Posts: 670 | Thanked: 747 times | Joined on Aug 2009 @ Kansas City, Missouri, USA
#4404
Originally Posted by DaSilva View Post
when I try another profile than default (starving and XLV tested) the phone starts to stutter and is slower/less responsive even with overclocking...I cannot save energy with low energy profiles.
Which setting in those profiles could cause this and how can I fix it?
Your particular unit probably just isn't very tolerant of the lower voltage profiles same as how some units don't tolerate the higher clock speeds well. Depends on your unit, the luck of the draw.

Try loading the 'lv' profile. It's the least aggressive one and should be ok. Of course it offers less potential power savings, but honestly I haven't seen really significant, noticeable power savings from any of the power profiles anyway - but maybe that's just me.
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gabby131 is offline gabby131
2010-06-05 , 20:54
Posts: 1,729 | Thanked: 388 times | Joined on Jan 2010 @ Canada
#4405
Originally Posted by DaSilva View Post
No, it is not the normal stutter it is something worse. Mobile Maps is not able anymore to speak fluently and the phone feels slower than with the default settings which means there must be something wrong with the tested profiles (starving and XLV) on my phone because it doesn't have this stutter effect with default mode and overclocking.
now i get it......XLV and starving has too low voltages that brings quite problems (stutter, lags, reboots video cam shut down etc), but i believe some of the overclockers has able to make a work around which is beyond my understanding. so change your settings to a higher voltage (like LV and the default).

i always have the stutter effect in XLV. and unexpected reboots in starving. but i always set the settings to default when playing music.

EDIT: Crashdamage has the absolute point.
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"The best way to break a Spell is to prevent it from being cast in the first place"

N900: 1000/1150mhz; sampling_rate 15; up_threshold 150000;
Last edited by gabby131; 2010-06-05 at 20:56.
 
DaSilva is offline DaSilva
2010-06-05 , 21:06
Posts: 729 | Thanked: 155 times | Joined on Dec 2009
#4406
Thanks and what about the "ULV" profile?
 
gabby131 is offline gabby131
2010-06-05 , 21:10
Posts: 1,729 | Thanked: 388 times | Joined on Jan 2010 @ Canada
#4407
Originally Posted by DaSilva View Post
Thanks and what about the "ULV" profile?
the UL has a bit lower voltage on idle (250MHz) so not so different in XLV. but most overclockers use XLV, even myself use XLV. stutters can be minimized but setting to a higher voltage
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if i did help you, just click "Thanks" on the lower right of my post. thanks!

"The best way to break a Spell is to prevent it from being cast in the first place"

N900: 1000/1150mhz; sampling_rate 15; up_threshold 150000;
 
DaSilva is offline DaSilva
2010-06-05 , 21:20
Posts: 729 | Thanked: 155 times | Joined on Dec 2009
#4408
So LV should be "stable" (without extreme stuttering) while ULV would behave more like XLV and starving, right?

And what about my second problem?
Last edited by DaSilva; 2010-06-05 at 21:23.
 
arkanoid is offline arkanoid
2010-06-05 , 21:21
Posts: 251 | Thanked: 70 times | Joined on Nov 2009
#4409
BTW, i'd like to have different max frequency while the phone is plugged into usb/charger
 
gabby131 is offline gabby131
2010-06-05 , 21:30
Posts: 1,729 | Thanked: 388 times | Joined on Jan 2010 @ Canada
#4410
Originally Posted by DaSilva View Post
So LV should be "stable" (without extreme stuttering) while ULV would behave more like XLV and starving, right?
there is a possibility that it could be stable. you can always try.

the unresponsiveness might also due to low voltages (but i am not certain). try re-booting your device before you try your settings
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if i did help you, just click "Thanks" on the lower right of my post. thanks!

"The best way to break a Spell is to prevent it from being cast in the first place"

N900: 1000/1150mhz; sampling_rate 15; up_threshold 150000;
 
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