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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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jaemo is offline jaemo
2010-04-11 , 19:09
Posts: 19 | Thanked: 5 times | Joined on Apr 2010 @ Germany
#2331
thanks, hope you find a solution!
 
arbitrabbit is offline arbitrabbit
2010-04-11 , 19:10
Posts: 171 | Thanked: 114 times | Joined on Feb 2010
#2332
By the way, these are the stock voltages for CPU and DSP

MPU/IVA OPPs:

OPP1: VDD1 = 0.975 V, MPU = 125 MHz, IVA = 90 MHz
OPP2: VDD1 = 1.000 V, MPU = 250 MHz, IVA = 180 MHz
OPP3: VDD1 = 1.200 V, MPU = 500 MHz, IVA = 360 MHz
OPP4: VDD1 = 1.275 V, MPU = 550 MHz, IVA = 400 MHz
OPP5: VDD1 = 1.350 V, MPU = 600 MHz, IVA = 430 MHz
OPP6: VDD1 = 1.350 V, MPU = 720 MHz, IVA = 520 MHz
 

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Gusse is offline Gusse
2010-04-11 , 19:12
Posts: 168 | Thanked: 206 times | Joined on Apr 2010 @ Finland
#2333
Originally Posted by Jokah View Post
I switched to the xlv/ideal kernel, running my N900 at 950mhz, works like a charm here, great job titan you own
Your device might run smooth at 950MHz, but there is a risk that you are decreasing GSM900 receiver (RX) sensitivity. GSM is narrow band (200kHz) mobile system and clock's which are using those frequency ranges may block or cause call drops. 3G is not so sensitive, wider band.

Avoid clock's in these ranges:
GSM850: 869 - 894 MHz
GSM900: 925 - 960 MHz
Last edited by Gusse; 2010-04-11 at 19:15.
 

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arbitrabbit is offline arbitrabbit
2010-04-11 , 19:20
Posts: 171 | Thanked: 114 times | Joined on Feb 2010
#2334
Originally Posted by titan View Post
thanks. interesting observation.
I get the same error and in the kernel log:

Code:
[ 1450.385833] headphone (GPIO 177) is now connected
[ 1451.642547] hci_h4p hci_h4p: firmware: requesting bcmfw.bin
[ 1452.283660] radio_bcm2048: disagrees about version of symbol struct_module
[ 1452.339508] hci_h4p hci_h4p: Frame for non-running device
[ 1452.541870] kb_lock (GPIO 113) is now closed
[ 1452.776153] kb_lock (GPIO 113) is now open
[ 1457.345733] hci_cmd_task: hci0 command tx timeout
[ 1457.345794] hci_h4p hci_h4p: Frame for non-running device
I'll investigate this later.
Did you compile this module because this error suggests that the module was compiled for a different kernel.
 
Jokah is offline Jokah
2010-04-11 , 19:21
Posts: 53 | Thanked: 8 times | Joined on Apr 2010 @ Switzerland
#2335
Originally Posted by Gusse View Post
Your device might run smooth at 950MHz, but there is a risk that you are decreasing GSM900 receiver (RX) sensitivity. GSM is narrow band (200kHz) mobile system and clock's which are using those frequency ranges may block or cause call drops. 3G is not so sensitive, wider band.

Avoid clock's in these ranges:
GSM850: 869 - 894 MHz
GSM900: 925 - 960 MHz
Thanks for suggestion, anyway in my country (Switzerland) my phone is constantly connected to 3G or 2.5G, I'll will check when i gona move abroad to Italy for work purpose to what it will switch, at worst i'll OC to 850mhz or i'll try 1ghz.
 
titan is offline titan
2010-04-11 , 19:30
Posts: 946 | Thanked: 1,650 times | Joined on Oct 2009 @ Germany
#2336
Originally Posted by Gusse View Post
Your device might run smooth at 950MHz, but there is a risk that you are decreasing GSM900 receiver (RX) sensitivity. GSM is narrow band (200kHz) mobile system and clock's which are using those frequency ranges may block or cause call drops. 3G is not so sensitive, wider band.
Avoid clock's in these ranges:
GSM850: 869 - 894 MHz
GSM900: 925 - 960 MHz
good point. maybe we should try to replace 950 with 965?
 

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tiivonen is offline tiivonen
2010-04-11 , 19:32
Posts: 25 | Thanked: 11 times | Joined on Dec 2009 @ Finland
#2337
Originally Posted by Jokah View Post
Thanks for suggestion, anyway in my country (Switzerland) my phone is constantly connected to 3G or 2.5G, I'll will check when i gona move abroad to Italy for work purpose to what it will switch, at worst i'll OC to 850mhz or i'll try 1ghz.
2.5g aka edge is gsm connection
 

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bigswed is offline bigswed
2010-04-11 , 19:35
Posts: 44 | Thanked: 5 times | Joined on Apr 2010
#2338
Hi, Titan..
I get network problem on 2G/GSM and canīt call out ,but i can call out on 3G.

I have try your stock,lv,ulv same on all.. and i have returnd to nokia orginal kernel between every flash and still same problem. canīt call out on 2g/gsm only 3G works. But i can receive call on 2g/gsm and 3g...

am i the only one..?(sweden)
Last edited by bigswed; 2010-04-11 at 19:37.
 
titan is offline titan
2010-04-11 , 19:46
Posts: 946 | Thanked: 1,650 times | Joined on Oct 2009 @ Germany
#2339
Originally Posted by jaemo View Post
hi titan,
only thing i notice is that my fm radio says:
error can not load fm radio driver module
is there a solution?
execute (as root)
Code:
ln -sf /lib/modules/`uname -r` /lib/modules/current
it's because fmradio somehow hardcodes /lib/modules/current instead
of using the real version. so it tries to load the stock kernels module.
 
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Ronaldo is offline Ronaldo
2010-04-11 , 19:50
Posts: 682 | Thanked: 208 times | Joined on Jan 2010 @ UK
#2340
ok installed xlv onthe max freq what do i put for 850mhz? do i reboot after i save settings?

cheers

scaling_max_freq 850000?
__________________
n900 (UK) Global 3.2010.02.8
 
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