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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Maemo 5 / Fremantle (https://talk.maemo.org/forumdisplay.php?f=40)
-   -   OC'ing at 850 Mhz with "lv" stable, what voltage for 900 Mhz? (https://talk.maemo.org/showthread.php?t=61718)

SAABoy 2010-09-04 22:17
Re: OC'ing at 850 Mhz with "lv" stable, what voltage for 900 Mhz?
 
Quote:
Originally Posted by SAABoy (Post 807450)
so, not having to do LV is desirable? I am 950 for the last 5 minutes downloading widelands, listening to media player on random, a fb im chat, and browing one microb browser... I think thats stable... Should I try LV, or just go straight to 1Ghz?
1Ghz crashed/rebooted in about 2 minutes with all the same things open... now gonna try 1Ghz on lv... i wonder how months of life im knocking off the cpu :D

SAABoy 2010-09-04 22:32
Re: OC'ing at 850 Mhz with "lv" stable, what voltage for 900 Mhz?
 
Quote:
Originally Posted by jakiman (Post 807462)
All a matter of how much you want to try and push your N900.
AFAIK, "noone" had their N900 die flat due to overclocking as of yet.
Also, before it dies flat, it will crash, hang or reboot anyways. =P

Lowering voltages is to reduce the stress/heat on the CPU.
So just try everything at stock default voltages first.
Then try lowering the voltages at the same frequencies if stable using default.
ok, so is there a way to explain why 850 is only stable on lv, 900 stable on default but crashes on lv? :P

ok lowing the voltage reduces stress/heat on cpu, but dont we need to up the amperage to get the same job done?... also, isnt this opposite of how they jack up gthe voltage on long distance power lines to reduce heat?

SAABoy 2010-09-05 00:20
Re: OC'ing at 850 Mhz with "lv" stable, what voltage for 900 Mhz?
 
Bump... Jakiman, you still around? :)

jakiman 2010-09-05 03:36
Re: OC'ing at 850 Mhz with "lv" stable, what voltage for 900 Mhz?
 
Quote:
Originally Posted by SAABoy (Post 807470)
ok, so is there a way to explain why 850 is only stable on lv, 900 stable on default but crashes on lv? :P

ok lowing the voltage reduces stress/heat on cpu, but dont we need to up the amperage to get the same job done?... also, isnt this opposite of how they jack up gthe voltage on long distance power lines to reduce heat?
Not enough voltage will make the CPU unstable as well as having too high voltage.
So it seems your N900 is a bit unlucky in terms of having an average sample of the CPU.

btw, amperage is governed by how hungry the CPU is.
Basically, cpu frequency governs the power that it needs.
Higher voltage = more power used by the CPU = heat.

Dark_Angel85 2010-12-02 08:56
Re: OC'ing at 850 Mhz with "lv" stable, what voltage for 900 Mhz?
 
perpetually trying now just to check for ya...

running at 250 900 lv

opened apps: App manager, conky, cpufrequi, file manager, calendar, conversations, mussorgsky, drnoksnes, microb with one web open (3G)..


oh... and listening to Robbie William's Beyond the Sea

Music sounds great

Dark_Angel85 2010-12-02 08:58
Re: OC'ing at 850 Mhz with "lv" stable, what voltage for 900 Mhz?
 
ok... checked cpufrequi...

I know it ain't the most accurate one out there..

38 C/59 raw

Song still sounds great.


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