Undervolting Acer 5920G

Is this possible? cause you can't see anything under voltage in NHC or SpeedFan

 

What about RM Clock?

 

Hmm...its seems like its possible...but how do u use this? not familiar with RM clock

EDIT: nevermind I figured out how to work it...but how much should I undervolt a Core 2 Duo T5250 1.5GHz? Is there any program that tests if your computer will run under how many volts?

 

Why would you . . ..?

 

the thing is getting too hot in my opinion

 

To cool the unit down of course. My 35W Turion with default top voltage of 1.4V runs at 1.2V now, which makes it some 29W unit.
Cooler, more quiet and runs longer on battery.

Why wouldn't you?

 

Ok....so I did some testing and I seem to be able to make everything run on .950v is that possible? I did the Prime2005 thing nothing happens so far...just get quite slow when its on. And I have been playing games and working on this notebook nothing has happened so far

 

You gotta change the voltage for every multiplier- meaning that in my case it starts with 0.9V for the lowest Speed-step and ends with 1.2V for the highest. You can see the default ones in the RM Clock and in general you should lower them equally if you don’t wanna test every frequency separately.
Than try to lower voltage even more for the lowest freq (for battery life) and the highest (for gaming). If you go to low you just get reset- nothing more so you can safely try.
When finished let us know what voltages you use and how much lower the temp is.

 

yea I kno...thats what I mean all the steps are running at .950V. Exactly what are signs of ur computer being unstable besides the usual BSOD?

 

If the voltage is to low you get either BSOD of restart.
As for the voltages sth seems to be wrong- look at the monitoring tab- the third graph shows voltage and multiplier- does it really stay at 0.95V all the time? I suspect it doesn't and CPU still runs at default.

 

No..its doesn't..it jumps up sometimes unexpectedly..I read this is due to Vista's EIST and there is no option to disable it in my BIOS, any idea how to disable it otherwise?

 

I'm not sure I understand. Why would you like to disable EIST? You need to set new lower voltages for every speed-step and manage them with RM Clock. First you gotta set the new voltages, than create profiles (power saving, maximum performance, power on demand), than select a profile.
Take a look at the screenshot.

 

Ok...look at the screen shot below. I have done everything you said but there is something strange that happens (as I stated before) Right now I am running on Maximal Performance because you can see it best. So it should be running on the highest step and voltage is set to .950v but it suddenly jumps up for no particular reason at times. And somewhere I read its due to the EIST

 

I don't have any idea why the voltage goes up for a moment but if it doesn't cause any instability I guess it's not a problem. I don't own C2D and my Turion doesn't do anything like that.
I think your voltage is lowered only for the highest multiplier though-when your clock goes down from 1.5 the voltage seems to go up.

 

I have a T2300 from a 5672, one of the first dual core laptops that came out.
back a year ago, i undervolted 6.0X to 0.950V. and 10.0X is at 0.975V. It has been working fine since then. Except sometimes on startup, it will freeze when the multiplier seems to go all the way up. but a restart will fix that anyway. and it happens rarely.
just make sure that you also modify the other p-states so that all of them are not sitting at the lowest voltage, that could cause stability problems.

 

Ok...somehow I was able to fix this problem by changing the power settings in Windows. But you seriously can set all the voltage at .950v. I get a temperature between 48 - 65 C

 

The point is you can set them lower. Most of the time your laptop doesn't work at the highest P-state so it can be even cooler than that. If you use the same voltage for every P-state or don't use RM Clock’s "power on demand" profile you make the idea of speed-step completely useless.

 

Actually no you can't, in Core 2 Duo Intel has locked the minimal voltage at .950V

 

You are right. Didn't understand you fully.
You mean you've changed voltage from some 1.3V to 0.95V for x9

 

that is absolutely believable to me.
my 10X is at 0.975V.
it really is too bad you can't lower it more than 0.95V.