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136 posts

Master Geek


Topic # 31458 18-Mar-2009 14:53
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I have tryed two differnt apps. Notebook hardware control and RM clock.
I use these to undervolt my laptop (this works fine). But i also game on the laptop everynow and then. and so i set it to max proformace whitch should set it the the max multiplier and max voltage. well it sets to the max voltage but he multiplier constatly switches between lowest and highest (6x-13x). meaning around 1ghz to 2.16ghz. This cant be good for the CPU and also it kills any proformance in games.
any ideas people? 
specs.
HP nc8430 T7400, 2gb ram,x1600 256mb gfx card.320gb 7200rpm hdd and a 1680x1050 15.4"


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  Reply # 202026 18-Mar-2009 21:09
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Sounds like the cpu is dropping in and out of power saving mode.  But that is just a guess.

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  Reply # 202279 19-Mar-2009 21:40
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It's speedstep a feature of modern intel cpu's that scales back the speed when it's not under load and ramps it back up when it is, saving power and generating less heat.  In my experience it works flawlessly.

http://en.wikipedia.org/wiki/SpeedStep

I see heaps of people get confused by this all the time because they didn't know about it.

 
 
 
 




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Master Geek


  Reply # 202309 20-Mar-2009 08:15
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Hello,
I know exactly what it is. But the thing is, im talking idling. 0-2% cpu usage, and its changing about once every 1/2 a sec. i can attach a screenshot if you like (the program has a monitor that shows multiplier)
Maybe its possible that the laptop is trying to turn it back to 6x because its not high enough usage but the program is saying no, max plz.. lol.
I'll check when i get home.. just got to work. so... at around 6pm :(

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  Reply # 202416 20-Mar-2009 20:22
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How much battery do you gain trying to control the voltage and speed with external programs?  I mean it might not even be worthwhile undervolting and using notebook hardware control.  Just let the bios and cpu manage it.

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  Reply # 202441 20-Mar-2009 21:27
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perhaps it's your hp's built in power manager struggling with your apps.

i have vaio and it used to have an integrated power management software that freakishly controls vista power management that whatever you go in vista power options the vaio overrides it! it's now gone ... heh heh





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