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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Posts: 604 | Thanked: 108 times | Joined on Feb 2010 @ Phoenix, WA
#4621
Originally Posted by jakiman View Post
Maybe he's talking in relation to the external temperature of the case?
Maybe you aren't allowed to make the phone get too hot externally. (or it could burn your hands)
So the allowed max temp for the CPU is lower with a phone that has a metal casing possibly.
*steps back out*

Ahhh, that could be a solution Thank you.
 
Posts: 208 | Thanked: 220 times | Joined on Apr 2010
#4622
Hi, I need expertise for a couple of questions. If the overclocking profile does not list a particular frequency and if that frequency is used then what voltage will it run at? For example
Code:
#IDEAL
# minimum frequency to use
    MINFREQ=250
# maximum frequency to use
    MAXFREQ=850
    FREQS="500:30,360 550:33,400 600:38,430 700:45,430 750:45,430 805:48,430 850:48,500 900:54,500 950:54,500 1000:60,500 1100:72,520 1150:72,520"
    SMARTREFLEX_VDD1=0
    SMARTREFLEX_VDD2=0
GOVERNOR=ondemand
    UP_THRESHOLD=75
    SAMPLING_RATE=150000
    IGNORE_NICE_LOAD=1
    POWERSAVE_BIAS=0
So what will 250 be using now since it isn't specified (30 ?)
Also some overclock profiles have the lowest value of "FREQS" at "0:30,90" (eg lv).I guess this is for what they say the cpu sleeps at 0 Mhz.What effect does it have if it is absent like above.

Secondly if the device is getting hot I underclock it to defaults 250 600, but what should optimally be the value of voltages.Should I leave it to the one I am using (ideal) or should I revert to stock voltages.
Will the higher voltages of stock cause it to heat more or will they reduce stress on cpu?
 
Posts: 136 | Thanked: 115 times | Joined on Jul 2010 @ Greece
#4623
I've been happily overclocking my N900 for a month now with the ideal settings, thanks to jakiman and others here, with no issues so far.
Still, just to show my ignorane on the matter I have not yet figured out the following..
Does overclocking and/or undervloting affect the CPU alone or does it also affect other parts of the device, like say the wireless module, the gps, the bluetooth module, the phone function itself giving them perhaps less power and affecting their performance?
And how is the DSP affected by the various profiles and what is the consequence of this?
 
Posts: 54 | Thanked: 15 times | Joined on Jul 2010
#4624
I know that many people probably already asked but is there any noob-friendly guide on OCing n900? I need someone to help me out with the basics, like voltages, cpufrequencies etc... I just don't know how to do it myself(i know i sound dumb...)
So, please, if possible, help me out by linking some guides and info for me.
 
Posts: 670 | Thanked: 747 times | Joined on Aug 2009 @ Kansas City, Missouri, USA
#4625
Originally Posted by ankit255 View Post
...is there any noob-friendly guide on OCing n900? I need someone to help me out with the basics, like voltages, cpu frequencies etc...help me out by linking some guides and info for me.
For the raw basics read this. For more detailed info check out the links at the end of the post.

http://talk.maemo.org/showthread.php...516#post731516
__________________
Registered Linux user #266531.
 
Posts: 208 | Thanked: 220 times | Joined on Apr 2010
#4626
Some help here please.Doesn't anybody know the answer.Where have all the overclock experts gone

Originally Posted by techie View Post
Hi, I need expertise for a couple of questions. If the overclocking profile does not list a particular frequency and if that frequency is used then what voltage will it run at? For example
Code:
#IDEAL
# minimum frequency to use
       MINFREQ=250
# maximum frequency to use
       MAXFREQ=850
       FREQS="500:30,360 550:33,400 600:38,430 700:45,430 750:45,430 805:48,430 850:48,500 900:54,500 950:54,500 1000:60,500 1100:72,520 1150:72,520"
       SMARTREFLEX_VDD1=0
       SMARTREFLEX_VDD2=0
GOVERNOR=ondemand
       UP_THRESHOLD=75
       SAMPLING_RATE=150000
       IGNORE_NICE_LOAD=1
       POWERSAVE_BIAS=0
So what will 250 be using now since it isn't specified (30 ?)
Also some overclock profiles have the lowest value of "FREQS" at "0:30,90" (eg lv).I guess this is for what they say the cpu sleeps at 0 Mhz.What effect does it have if it is absent like above.

Secondly if the device is getting hot I underclock it to defaults 250 600, but what should optimally be the value of voltages.Should I leave it to the one I am using (ideal) or should I revert to stock voltages.
Will the higher voltages of stock cause it to heat more or will they reduce stress on cpu?
 
Posts: 4 | Thanked: 1 time | Joined on Apr 2010
#4627
HElp !!! HeLp!!!

MY n900 Keep Rebooting after i deinstall "Enhanced kernel for power users (settings)" .

i can't even Connect my N900 in flasher mode
it show "Suitable USB device not found, waiting."
 
Posts: 1,427 | Thanked: 2,077 times | Joined on Aug 2009 @ Sydney
#4628
Originally Posted by techie View Post
Hi, I need expertise for a couple of questions. If the overclocking profile does not list a particular frequency and if that frequency is used then what voltage will it run at? For example
Code:
#IDEAL
# minimum frequency to use
    MINFREQ=250
# maximum frequency to use
    MAXFREQ=850
    FREQS="500:30,360 550:33,400 600:38,430 700:45,430 750:45,430 805:48,430 850:48,500 900:54,500 950:54,500 1000:60,500 1100:72,520 1150:72,520"
    SMARTREFLEX_VDD1=0
    SMARTREFLEX_VDD2=0
GOVERNOR=ondemand
    UP_THRESHOLD=75
    SAMPLING_RATE=150000
    IGNORE_NICE_LOAD=1
    POWERSAVE_BIAS=0
So what will 250 be using now since it isn't specified (30 ?)
Also some overclock profiles have the lowest value of "FREQS" at "0:30,90" (eg lv).I guess this is for what they say the cpu sleeps at 0 Mhz.What effect does it have if it is absent like above.

Secondly if the device is getting hot I underclock it to defaults 250 600, but what should optimally be the value of voltages.Should I leave it to the one I am using (ideal) or should I revert to stock voltages.
Will the higher voltages of stock cause it to heat more or will they reduce stress on cpu?
Why isn't it specified? Did you create that profile?
I'm actually not 100% what happens if they are not specified.
But I think it just means it will not be used even if you specify beyond the limites.
Like if you specify 1500Mhz, it just won't go that high.
or it may not idle at 0Mhz so you are going to be hit in terms of power saving.

Higher voltage is always more stressful to the cpu.
But that is if it is beyond what it can handle.
Stock @ 250-600 will be not much diff to Ideal @ 250-600.
Although technically, Ideal will use less voltage and hence potentially use less power.

Why are you trying to use such profile anyways. I don't recommend it.

I recommend you stick with LV/ULV/IDEAL profiles. Many have issues using IDEAL voltages. If so, use LV or ULV.
Then just set the limits manually and set the avoid frequencies manually. (if desired)
 
Posts: 156 | Thanked: 28 times | Joined on Dec 2009 @ Los Angeles, CA
#4629
Originally Posted by mangal_sk8erboy View Post
hmm...my phone ran amazingly fast on ideal for around 8 to 9 hours..then it got back to the lazy laggy 600 mhz feel, but conky showed 850 mhz :S!
help?
I just wanted to say that I had the same problem,

I use ideal with limits set from 500-850, and it's always starts out amazingly fast, then hours/day later it would get incredibly slow that i would have to reboot the phone for it to reset to it's default settings

Right now i just set it at lv mode with limits fro 250-805, lets hope that works out out, anyone got a fix or any updates with this issue? i haven't been hanging around this thread lately
 
Posts: 1,751 | Thanked: 844 times | Joined on Feb 2010 @ Sweden
#4630
Originally Posted by weijie88 View Post
HElp !!! HeLp!!!

MY n900 Keep Rebooting after i deinstall "Enhanced kernel for power users (settings)" .

i can't even Connect my N900 in flasher mode
it show "Suitable USB device not found, waiting."
Maybe you have solved it by now? I know it can be frightening at first. Look for the numerous howtos or use the serach for your answer and you shall find your salvation.
 
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