The "Undervolting" Guide

Apparently the English temperature scale is not widespread outside the Commonwealth. 37C is 98.6F or normal body temperature. I'm sure no CPU will complain about anything close to that.

Of course, Aussie and Kiwi systems run cooler because of all the cold beer you spill on them. LOL

 

Haha , that means my system should run twice as cool since I have both NZ citizenship and AU citizenship.

 

luckily my country location is right above moral's.. sharing the same vertical line
my T8100 was 25-30 at idle

 

Hi guys I am unsure if I did the undervolting right... some of the steps were kind of confusing.

This is an HP DM3z with the AMD Neo X2 L335 processor.

Here, I showed a screenshot of what I did, I was able to undervolt it to .8250? Does that sound right?

 

Saved me 14 degrees (C) on my Vostro!

And I could probably go lower still, I just figured it was good enough.

 

Yes that's achievable. but one question, why is your profile a "Max Performance" ?

 

I changed all of them to that, power saving, better performance, and no management... I don't know... I got a little confused while following the guide, should I change something?

 

just to confirm you got the highest multiplier checked in Max performance profile right?
And you need to confirm if the voltage is already adjusted when running Orthos..
check in CPU Info > Current or with cpuz.

 

Yep. I get .8250V.

I notice in general a quieter system but still the same battery life.

 

yeah, with the already "battery efficient" AMD Neo you can't expect more with undervolt.
how about the temps? care to share some?

 

On internet browsing and general stuff I get 45 degrees Celsius with both cores.

Running Orthos on full CPU mode I get 55-58 degrees Celsius after 10 minutes.

Before it would do 52 degrees Celsius doing general stuff, and 60-65 degrees Celsius with the full CPU mode.

 

I'm trying to undervolt my dm3 with AMD Neo X2 L335.

should i mess around with the options under "advanced CPU setting" - "CPU setup"? I have no idea what ACPI state and Clock divisor do.

 

I just messed with the voltages in Profiles.

Follow the guide, I didn't underclock or overclock, no need.

 

I just installed RMclock, and there isn't any advance CPU settings showing up. I have an AMD zm-84. Is the guide still up to date?

 

Even better. Since your voltage curve is absolutely flat, there's no power advantage to running anything but FID #8, top speed. Uncheck everything else and set your working profile to Max Perf. Your graphics and game applications will thank you.

 

the answer for you is k10stat

 

Here's my result, after running hours of stability testing :

Vista 32Bit
T8100 Core 2 Duo 2.1GHz



1) What am I suppose to disable and keep enabled?
2) Since my processor goes up to 2.1GHz, how do I ensure I get maximum speed (since RMClock seems to have trouble with half-step clocks)?

From what I gather around this thread, if your voltage remains flat (consistent) and stable across all clock steps, then I would witness no battery life improvement even when the system decides to downstep the clock speed to a lower multiplier? if that is the case, then I might as well keep the system running at maximum performance, even when running on battery power?

Thanks in advance!

 

uncheck the "Engage IDA" in Advanced Setting, that'll keep you away from spikes from FID jumping randomly to IDA.

and Scott'll tell you to uncheck all FIDs except the highest.. trust me.. LOL

 

You don't need to use RMclock.
download trottlestop. Use it to set the multi to 11.5x and the voltage to 0.9500V.

That's what I do with my T8100.

EDIT: just realized trottlestop wont go lower than 1V.

 

hi moral, how much memory resource does throttlestop consume?
If it's better than rmclock I might go and try it

edit: is there a chance it will go lower than 1V?

 

3.3mb ram.

I did ask the guy who made it (is a user on this forum, just look for the acer throttlestop thread) about getting lower voltage, so there is a chance.

 

even better yet: can he make it to support i5/ i7??

 

It does support i7 in a way (stops throttling). I don't know if you can undervolt i7 notebooks with it. Might be something to ask unclewebb (user who made it).

 

please help:

how it is possible that CPU VID is 1.1375V when the maximum set in RM is 1.05V ?


Windows 7 x64, power balanced plan and:

 

Use CPUz to check your voltage. I think the program you use is old.

 

still no possitive results
it looks like the RM has no effect

 

1. First of all, all of your VIDs must be equal or lower than the top FID voltage. You're making RMC schizo by telling it to up the voltage as it slows down.

2. Don't use SLFM. The problems outweigh any potential gains.

 

???

The voltage jump in to 1.138V for 1 sec. and than back in to 1.05V
Sometimes CPUZ showing that the 4x multiplier is running
???

 

try to uncheck "Engage IDA" in Advanced setting
edit: on 2nd thought, that's not the IDA voltage, it's clearly the OS power plan messing up with you

 

Ok. Progress. Now, many people have found that running RMC and CPUZ at the same time causes strange readings. Why don't you post a NBR thumbnail of your RMC monitoring page (graphs). Everything is right there.

 

found k10stat, and it worked wonderfully, yay! thanks crayonyes. ^^ (+rep)

my laptop is now stable at:

p0 - 1.0625
p1 - .8875
p2 - 0.75

 

RMC is working only when Orthos is running and all 3 (CPUZ+Everest+RMC) showing the same 13x 1.05V

but during regular work all of them showing different results

uncheck "Engage IDA" in Advanced setting -cant be, after refresh button it is back ON ?!!

 

No, RMC is working correctly. You are the one that told it to step up to full speed only in response to a heavy load like Orthos. That's Performance on Demand. I don't use it.

There's a long list of things to do to tune up RMC for W7 for which it was never designed for. I'll make a list. But first, why don't you "Search this Thread" for "W7" and read up on what others have done before.

 

@blazom, cpuz can't report SLFM fsb which is 100MHz, that's why it gives false reading to 4x multiplier,
when it should be 8 x 100MHz <-- SLFM running

it's clearly OS power plan having a fight with RMC..
unfortunately I don't know where to start helping you.. I'm still on XP

 

I think all I need to do is set up correctly the power plans in W7 and RMC

now, I think I dont understand how are the power plans in RMC reconected with power plans in W7
Why is the Ballanced power plan not in RMC?

did I understand it correctly?
in RMC - Profiles - Performance on demand - OS setting - use OS power plan =Custom

in W7 - use RMC power scheme

 

mine is in XP = RMC power scheme,
in RMC = use OS power plan = unchecked

 

ok......right

 

No. In W7, it's backwards from XP. W7 sets all the rules except voltages.

In RMC, uncheck "Enable OS power plan integration" in Management.

FID selections need to match every page.

 

Scott, if I may ask u, do u suggest to ? :

dont use SLFM nad IDA;
first index at lovest multiplier at lowest voltage
last index at highest multiplier at lowest "possible" voltage

in advanced CPU setting dont use anything except Enable TM1

 

Select and use W7 Balanced and set parameters to your liking. Try using 10% threshold lower limit so the CPU will step up the speed for normal applications and not just for Orthos.

 

I just noticed now, I am able to go full clock speed even when I am running on battery.

I used to be stuck to half of my processor speed (1.15ghz) when running on battery, but now, it boosts to 2.3ghz when I played some online flash game. Sucked my battery dry, but at least I can use the full potential of my notebook now even on battery.

 

It took the high CPU load from your online game to trigger your speedswitching setpoints.

In W7, the power plan details are where you set FIDs and speedswitching thresholds. Turn off power plan integration in RMC. W7 does it better except for setting voltages, which it can't do.

Try setting the upper frequency threshold to 100% and the lower to 10%. That way, speed switching will actually happen at a reasonable load level.

 

Throttlestop now does support 0.9500V for the T8100 CPU (among others):
http://forum.notebookreview.com/showpost.php?p=5788710&postcount=38

 

my lowest VID is 0.925 do you see the option in ThrottleStop for going there?
I'll try it this weekend. Thanks moral !

 

I think the problem was something to do with throttlestop not being made for CPUs with an 800mhz FSB, now that's fixed so you should not have a problem getting your min VID.

 

i want to disable IDA so i unchecked Engage IDA in advanced settings, but when i restart my laptop,or just press the refresh button in RMclock, IDA is checked again. How to uncheck IDA and save it?

 

mine keeps off even after restart ... as long as I don't click refresh

 

well i don't know what to do, i tried reinstall rmclock, but IDA checks back again... i tried to restart rmclock i thought settings would save, but engage IDA is checking itself no matter what i do. Maybe i can do something in the registry ?

 

I've heard of this. Uncheck any IDA index in main Profiles and it shouldn't kick in in spite of it's self-selecting itself in Adv. CPU.

 

i unchecked it now, but it still keeps checking itself up... BTW, what to check and uncheck in that advanced settings ?