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Posts: 11 | Thanked: 7 times | Joined on Jun 2010
#10
Originally Posted by Dragoss91 View Post
I need some advices about overclocking the n900 . With 125/1000 mhz I feel a little lag sometimes , should I increase voltages ? Also , these frequencies are safe ? I don't want to damage the cpu permanently .

Here is the default preset I'm using now .

# DO NOT EDIT THIS FILE - CREATE A COPY OF IT FOR CUSTOMIZATION
# minimum frequency to use
MINFREQ=125
# maximum frequency to use
MAXFREQ=1000
# list of frequency configurations: each "frequency:volt,dsprate"
FREQS="0:20,90 125:25,90 250:38,180 500:30,360 550:54,400 600:60,430 700:60,430 750:60,430 805:60,430 850:60,500 900:60,500 950:60,500 1000:60,500 1100:72,520 1150:72,520"
SMARTREFLEX_VDD1=0
SMARTREFLEX_VDD2=0
GOVERNOR=ondemand
UP_THRESHOLD=95
SAMPLING_RATE=300000
IGNORE_NICE_LOAD=0
POWERSAVE_BIAS=0

i am using 250-500-750-1000, the rest of the speeds are unnecessary because when you reach 500 and it thinks it needs 600, but by the time it changes to 600, 600 hits 95% load and it looks for 700 or higher.

only jumping 4 steps, usually stays at 250/500 when no load

and hovers at 750/1000 when browing or running some other tasks

if you are a heavy user who always uses the device, never letting it rest till the battery is flat, then you might want to consider 500-750-1000 or just 500-1000, the device will be much more responsive.

there are also some people who run the device only at 1000 all the time, but i would not recommend this. there might be *some long term effects (* some are running it for months without issues so far)

and as someone pointed out earlier, 125 is useless because somehow it will always go to 250 the moment you unlock. in simpler terms, 125 is just too slow to do anything useful.

also SAMPLING_RATE=300000 means when you launch something, when it realizes it needs to switch to a higher speed, it will need to wait for 300000 before switching = short delay before it goes smoother

but changing SAMPLING_RATE=150000 means it is not only faster to switch to a faster speed when needed also switches back to slower clock faster = immediate speed when it needs it.

and i dont think jump from 500mhz to 550mhz (500:30,360 550:54,400 ) requires such a big jump in voltage from 30 to 54.
 

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