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Simple Undervolting Tutorial - Pentium M Dothan - Page 58

post #1141 of 1202
4/18/06 at 12:59pm
yeah i've been using a program called hot potato since it keeps the CPU at 100 where i can't even run any other applications while its on. It will try to load but hotpotato takes so much of the resources it creates a really long queue.

I was finally able to make the system crash at .940, so i've been running hot potato at .956 and so far so good. I have noticed the fan starts quite a bit less ^_^
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post #1142 of 1202
4/18/06 at 1:05pm
good... another way i do it is run a torture test then set the voltage up a couple of notches for insurance... those are very small increments in RMClock lol
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post #1143 of 1202
4/20/06 at 1:55pm
Hi, I use a program who switch the frecuency of the cpu and shows the temperature. Also the cpu changes to diferent states.
I apply the test and my results is here:

Clevo M38AW
Intel Pentium Sonoma 1.6 533Mhz
1Gb OCZ DDR2 533Mhz
60Gb 5400rpm 12mb cache

6x 0.998v-->0.700v
12x 1308v-->0.940V

This settings can apply to the others multipliers?
I also understand why I can't put the cpu slower than 800Mhz. The Sonoma 1700 can go slowly to 800Mhz, why I can't go under the 800Mhz, or why I can go up mi 1600 to go a 1700.
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post #1144 of 1202
4/23/06 at 12:33am
Quote:
Originally Posted by tnelx
I'm running prime95 but its not using the cpu at 100% usage. Is this because i've selt my volts too low? I've left the minimum at default (.700) x6 and max at (1.100) x13. this is a 1.73ghz dothan/sonoma.

anyone w/ some insight?

EDIT: under my task manager it shows 100% usage which one should i believe?
Just changed it to .988 and have yet to see a blue screen...
You have to be running Small FFTs. It MUST show 100% CPU usage regardless of your voltage.
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post #1145 of 1202
4/30/06 at 3:50am
Has anyone got the voltage table of the T2300 core duo as used in the Asus W5F? I have NHC but I have no base upon which to set the voltage.

Another question is that step 6 in NHC show the minimum voltage of 0.9500 and the processor is already operating at that level, does it mean it can't go any lower?
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post #1146 of 1202
4/30/06 at 5:55am
you should get your own frecuency, because the this changes on the diferent notebooks.
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post #1147 of 1202
4/30/06 at 6:13am
The speed is 1.66GHz, it's an ASUS W5F, but what I need is the table of voltage that is default on the processor, from there I will try to set it lower.
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post #1148 of 1202
4/30/06 at 7:09pm
Quote:
Originally Posted by Tranworld
Another question is that step 6 in NHC show the minimum voltage of 0.9500 and the processor is already operating at that level, does it mean it can't go any lower?
According to what I read on the forum of rmclock (rightmark.org) it is a "feature" of
new Yonah processors that their lowest possible VID is set by Intel to be 0.9500.
It seems that it can not be undervolted below this level, as opposite to the Pentium M processors. This sad fact seem to make the undervolting of Yonah processors much less interesting and less effective (well, unless you're gaming all the time at the highest clock).

The question which bothers me is how the new Yonah notebooks are compared
to the similar Pentium M notebooks with the undervolted processors. Which one is
hotter and which one has better battery life.

My guess is that undervolted PMs Dothan are better than new Yonahs with a very restricted potential for undervolting.
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post #1149 of 1202
4/30/06 at 8:17pm
Quote:
Originally Posted by Dozzit
the vast majority of ppl don't stress it enough to chk the stability at a given voltage...

i don't consider running just Prime95, no matter how long, to be enough of a test...

i run the Prime95 tests AND while they're running, i run some of my regular apps... i do this for hours, sometimes all day, until i'm completely satisfied it's gonna hold up...
I am not sure if it is a correct way. I checked the temperature behavior under prime95 alone
and prime95 AND superPi running in parallel. In the latter case the temperature was lower.
It might mean that the processor is loaded less, unlike the expected. I don't have an explanation of that that I would dare to make public.

I read somewhere that video decoding loads processor more than prime95.
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post #1150 of 1202
5/5/06 at 1:51am
i tried undervolting but i set the max. FID down to one notch and hit apply, it jumped back to the original value. As i read in this thread, I change the profile to minimal and set the Min. FID first. (to 0.700V) I hit apply and my computer freezes! What the? Can anyone help me out? Im using RMclock 1.4 so it will be easy to follow the original guide.
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post #1151 of 1202
5/7/06 at 12:30am
Just try higher volatges at the lower step, e.g. 0.732 first. You just seem to not have that good luck as most of us here which are able to run their PMs at 0.700V at the lowest speedstep.

Notebook Hardware Control may be easier to use than RMClock (though by using
RMClock I learned a lot about how my system works and how it uses the computing resources).
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post #1152 of 1202
5/8/06 at 1:59pm
I just successfully pin-modded my i9300 to 2.13 GHz and decided undervolt to reduce heat and maximise battery life. The volt-mod was a little dissappointing. I used Prime95 to stress the CPU and Notebook Hardware Control to step the voltages on the 1.6 GHz Dothan. The lowest I could go before Prime 95 crapped out was only 1.196 volts.

I decided to settle at 1.212v/0.876v. My CPU temp dropped from 60c at 1.34v to 54c.

Oh well.
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post #1153 of 1202
5/9/06 at 3:30am
I have a dell i9300, 1.73 ghz, 1gb ram 2dimm and a 6800 go. I read this guide for about two days and searched for other people's results before undervolting. During the process, I jumped around numbers and found that I was stable for a few hours under 6x @ .7v and 13x @ .988v and I get the error at .956v. I'm not sure how common this result is, but I decided to keep my max vid to 1.1v. I also play games like CS:S and F.E.A.R with OC at 360/730. How safe am I with these settings? Should I keep the RMclock profile settings always at maximal? Any suggestion would be appreciated.
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post #1154 of 1202
5/12/06 at 10:42am
^----- No, just perform a test for 24 hours, at each frequency you want to keep. As long as the test does not result any error, feel free to play at those voltages. I rise all voltages one step above the "error-free" ones, just to be sure.
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post #1155 of 1202
5/14/06 at 1:51am
I don't understand the point of running a stress test when you're adjusting the voltage at the lowest clock speed (800MHz in my case). Doesn't it just up the voltage to the max one anyway? How should you test the lowest one?
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post #1156 of 1202
5/14/06 at 2:24pm
Quote:
Originally Posted by Jyrenth
I don't understand the point of running a stress test when you're adjusting the voltage at the lowest clock speed (800MHz in my case). Doesn't it just up the voltage to the max one anyway? How should you test the lowest one?
yep, there's no need to run it for the min... haven't seen anyone post that they've had any probs with .700 @ 6x/800MHz...

btw, you might wanna uninstall Dell QuickSet if you're running RMClock or similiar utility... i was having some stability probs that stopped when i uninstalled it... got the info from a level 3 tech at Round Rock...

fyi, i have an XPS gen 2...
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post #1157 of 1202
5/15/06 at 9:35pm
On my situation, the problems I had were the computer slowing down, at 0.7 and 0.716. It was extremely slow (like taking 20 seconds to change tabs, activating drop-down boxes, restoring windows...), but when I switched to 0.732, it immediately became normal. I tried again, and the same problem happened, so I guess that's the problem you should expect, at least on Pentium Ms.
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post #1158 of 1202
5/17/06 at 4:17pm
Hi folks I'm about to find the sweet voltage spot for my P M 1.7 (dell 710m). I'm just wondering, will I have to retest stability if I add hardware components? I'd like to add more ram, and a type II soundcard at a later date..
Thanks,
Jon
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post #1159 of 1202
5/18/06 at 12:08am
No. That's the voltage for your processor, the minimum conditions it can work at. It's specific to that piece (your processor), not your computer.
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post #1160 of 1202
5/30/06 at 5:33am
anyone have a guide for the latest RMclock 2.05? I'm a little confused I followed the steps and added a second state to performance on demand (FID 15.0x VID 1.084V) and hit apply. It's still showing as 1.308V when I check the general tab.
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