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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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geneven is offline geneven
2011-04-25 , 10:04
Posts: 5,795 | Thanked: 3,151 times | Joined on Feb 2007 @ Agoura Hills Calif
#5271
Originally Posted by Mr. Incredible View Post
My default config is: FREQS="0:20,90 900:56,500"
Now, when I run "kernel-config limits 1000 1000" what voltage is 1000 using? 56? 72?
My guess is it's ignoring what you have there because you haven't specified anything for 1000. So it's whatever the default is if you don't have a FREQS line.
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Mr. Incredible is offline Mr. Incredible
2011-04-25 , 20:35
Posts: 209 | Thanked: 44 times | Joined on Jan 2010 @ Austria
#5272
Thanks, but what's the default? I haven't specified anything for 1000.
 
gabby131 is offline gabby131
2011-04-25 , 20:47
Posts: 1,729 | Thanked: 388 times | Joined on Jan 2010 @ Canada
#5273
Originally Posted by Mr. Incredible View Post
Thanks, but what's the default? I haven't specified anything for 1000.
the default voltage above 600mhz and below 1100mhz is 60 (unless otherwise specified or you are using settings other than stock)

if you did not put 1000mhz on your active freqs your n900 will not scale on that frequency even if you set 1000 to kernel limits IMHO because it is classified as avoid frequency.

so if you have this:

Min: 900
Max: 1000

active freqs: 0:20,90 900:56,500

your scaling max freq is 900
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N900: 1000/1150mhz; sampling_rate 15; up_threshold 150000;
 

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Mr. Incredible is offline Mr. Incredible
2011-04-26 , 09:36
Posts: 209 | Thanked: 44 times | Joined on Jan 2010 @ Austria
#5274
I have this:

Min: 900
Max: 900
active freqs: 0:20,90 900:56,500

Conky reports 900MHz and I know 900MHz is using the voltage setting "56"

Then I run "kernel-config limits 1000 1000" and Conky reports that the phone is running @ 1000MHz but I don't know which voltage setting 1000MHz is using since I haven't specified one.

So I guess it is 60? How can I verify that?
 
gabby131 is offline gabby131
2011-04-26 , 12:03
Posts: 1,729 | Thanked: 388 times | Joined on Jan 2010 @ Canada
#5275
Originally Posted by Mr. Incredible View Post
I have this:

Min: 900
Max: 900
active freqs: 0:20,90 900:56,500

Conky reports 900MHz and I know 900MHz is using the voltage setting "56"

Then I run "kernel-config limits 1000 1000" and Conky reports that the phone is running @ 1000MHz but I don't know which voltage setting 1000MHz is using since I haven't specified one.

So I guess it is 60? How can I verify that?
hmmm......

okay....we can verify that by (on x-terminal):

Code:
root
kernel-config show
you will be given results and now look for 1000:XX,500 and the XX is your voltage dor 1ghz. make sure you are running on the settings you have above
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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;
 
Mr. Incredible is offline Mr. Incredible
2011-04-26 , 15:40
Posts: 209 | Thanked: 44 times | Joined on Jan 2010 @ Austria
#5276
Nokia-N900:~# kernel-config show
current kernel configuration:
current frequency: 1000
supported frequencies: 125 250 500 550 600 700 750 805 850 900 950 1000 1100 1150
min. frequency: 1000
max. frequency: 1000
avoid frequencies: 125 250 500 550 600 700 750 805 850 950 1000 1100 1150
active frequencies: 0:20,90 900:56,500
SmartReflex VDD1=0, VDD2=0
governor ondemand: ignore nice load= 1, up threshold= 75, sampling rate= 150000, powersave bias= 0

Can't find 1000:XX
 
geneven is offline geneven
2011-04-26 , 16:00
Posts: 5,795 | Thanked: 3,151 times | Joined on Feb 2007 @ Agoura Hills Calif
#5277
There are documents on overclocking and links to threads that discuss voltage usage too, all in the Wiki. I prefer that you look up that information since you are the one who wants to know.
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gabby131 is offline gabby131
2011-04-26 , 16:06
Posts: 1,729 | Thanked: 388 times | Joined on Jan 2010 @ Canada
#5278
Originally Posted by Mr. Incredible View Post
Nokia-N900:~# kernel-config show
current kernel configuration:
current frequency: 1000
supported frequencies: 125 250 500 550 600 700 750 805 850 900 950 1000 1100 1150
min. frequency: 1000
max. frequency: 1000
avoid frequencies: 125 250 500 550 600 700 750 805 850 950 1000 1100 1150
active frequencies: 0:20,90 900:56,500
SmartReflex VDD1=0, VDD2=0
governor ondemand: ignore nice load= 1, up threshold= 75, sampling rate= 150000, powersave bias= 0

Can't find 1000:XX
kudos to geneven.....more info on the wiki...

you will really not see the 1000:xx coz on active frequencies, you only have 0:20,90 900:56,500. on the wiki....the voltage at 1ghz values on all settings is 60....so pretty much, 1ghz is running on votage value 60 (unless otherwise you customized it).
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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;
 
alfmar is offline alfmar
2011-05-04 , 15:39
Posts: 88 | Thanked: 411 times | Joined on Mar 2010 @ southern Italy
#5279
Duh, this is weird.

A few weeks ago I was whining here about my brand new N900, which featured unexpected reboots when overclocked above 600 MHz (yes, a couple reboots even at 700 MHz, and yes, reboots even in "ideal" settings... reboots almost always happening when accessing the 32Mb eMMC).

I now found that these commands did not yet show any unexpected reboot (at least in the last 4 days):

kernel-config load lv
kernel-config limits 250 850

Today I was able to backup 3+Gb movies via rsync on wifi at 1.3-1.4 megabytes/sec sustained speed (three times faster than USB networking) without experiencing reboots.
 
geneven is offline geneven
2011-05-04 , 15:44
Posts: 5,795 | Thanked: 3,151 times | Joined on Feb 2007 @ Agoura Hills Calif
#5280
Originally Posted by alfmar View Post
Duh, this is weird.

A few weeks ago I was whining here about my brand new N900, which featured unexpected reboots when overclocked above 600 MHz (yes, a couple reboots even at 700 MHz, and yes, reboots even in "ideal" settings... reboots almost always happening when accessing the 32Mb eMMC).

I now found that these commands did not yet show any unexpected reboot (at least in the last 4 days):

kernel-config load lv
kernel-config limits 250 850

Today I was able to backup 3+Gb movies via rsync on wifi at 1.3-1.4 megabytes/sec sustained speed (three times faster than USB networking) without experiencing reboots.
Well the most extreme undervolting by most users is with ideal or starving settings (check the wiki to make sure I'm right) so it's not surprising thay lv works better for you.
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