The "Undervolting" Guide

I looked around and couldnt fin anything yet on another program then RMclock which may be able to undervolt the X9000:
Flip,you were right, I had to hit "default" to get my voltages.

Now the problem is that still I cannot set the X6 multiplier to go lower then 1V. Any work around this that you know of? If not its alright too, Ill just overclock it to 3.2gig. I figured I was gonna do one or the other with it, undervolt or overclock

 

Thats the lowest an extreme processor like yours will go. Mine is 0.937v and i have a 2.2ghz, A penryn T9300 2.5ghz is 0.950v default i believe. See the pattern? The faster the processor the higher the lowest voltages are. Yours is an overpowered 2.8ghz so 1.000v sounds about right

You can undervolt and OC at the same time to an extent. Heres a thumb rule: The Higher the clockspeed, the more voltage it requires to run. If theres not enough voltage being fed, it will BSOD. So this means you can OC and still find the optimum voltages for the multipliers.

 

I see, so im really only looking at changing the top multipliers to different voltages

 

Yeaps. Ive never actually seen a case of a X9000 being undervolted so i wouldnt know how low that CPU can possibly go. Im guessing you should be able to undervolt by at least .100v for highest multiplier

If the 14x is stable at 1.000v then you can set all your multipliers to exactly 1v even if its the same voltage as your idle multiplier

If your gonna OC, i suggest doing that first before tuning the optimum voltages for the multiplier/clock speeds

EDIT: I totally forgot, with X9000 they are OC'd by unlocking the 15x and 16x multipliers. Im used to the "setting fsb higher" to OC CPU's. Im not sure if RMclock will recognise the unlocked 15 & 16x multipliers. If it can then you can lower the voltages for them and do the stability test too

 

Yes T5270 does have SuperLFM and voltages were detected properly, there is an option to change its voltage under "management" and to change it's multiplier under "Profile" but I'm afraid of messing with it.

Reason I ask is my penryn's SuperLFM is at .95v while the T5270 is at .85v. I belive if T5270 can do .85v then T8300/T8100 should be able to as well, cuz both use 800mhz for SLFM.
I'm afraid of changing it though, that's why I'm asking

Hey Falcon! you may be able to lower that 1.0v floor by selecting a custom p-state/voltage after clicking on Management on the right-hand side of rmClock. Try it out, then tell me if it works.

 

I'll have to try that because I have the same issue, HWmonitor shows temps that are about 15 degrees higher than RMclock or CoreTemp; I also have the same processor as you (T5550). I got upset because HWmonitor showed my CPU idling at 61C

 

Great guide, just want to point out you have a few "SuperFLM" typos in your guide It should be SuperLFM instead?

 

I got this temp readings using Orthos 11 minutes, I think they are pretty good for a dual core turion 64 X2... I dont know if undervolt the core or not...

 

just undervolted my desktop opty180 , at 12x i'm running fine at 1.150 . temp running 100% x2 cpu both cores run at 44-46 c ! used to hit 52-54 c .
thanks !

 

I just realised that.. thanks lol

The latest HWmonitor must have a bug for that specific processor.

I havent really looked into the management section but this could be the key to finding the correct default voltages. Normally if your voltages are detected properly, the preset CPU-defined voltages are the correct ones, it stops you from going lower on purpose

You can try force setting it lower but i dont recommend you do, the most you will get is a BSOD. After it does, rmclock doesnt save the unstable settings when it crashes so once you restart, your back to the previous stable settings you were on.

You can change the safely change the superlfm multiplier if you want. The 6x multiplier will make the CPU idle at 600mhz, and 8x will idle at 800mhz.

Those are temps are pretty good, its up to you if you wanna UV or not. Just look at the Advantages on the guide, if you dont need them then dont bother with UV'ing

 

I cant seem to be able to change that custom voltage setting

 

But I noticed this:

this graph says that my voltage at x8.0 is actually lower then 1.000V! its at 0.925
How do I get the program to read correct voltages of my CPU? I already hit the "defaults" button a few times.

And just now I noticed this: RMclock might be reading my processor wrong entirely. the CPU load graphs dont even sync.

:-/

 

My CPU load/usage dont sync either but its fine. Can you use CPU-z to double check the CPU stats? Its a handy essential tool specially for a X9000

It seems like your voltages were detected incorrectly. It says Intel Core 2 Extreme is supported in the RMclock website though

 

I locked it at x6.0 and looked at CPUZ and got this:

 

Huh.. and x8.0: its lower voltage then x6.0? :-/

 

Nothing seems to be consistent for your CPU, make sure you turn RMclock off when using CPU-z just incase it influences the voltages.

Im clueless about your CPU to be honest. If you really wanna undervolt, you might wanna approach the RMclock forums. This is really at a technicality beyond me

EDIT: Okay the latest CPU-z seems to also have an issue reading incorrect votlages. Apparently the older versions is more accurate. http://www.google.com.au/search?hl=en&q=CPU-z++wrong+voltages&btnG=Search&****=

 

it's lower at x8.0 because it's 100 x8. SLFM reduces bus speed from 200mhz to 100mhz. 200 x6 = 1.2ghz and 100mhz x8 = 800mhz. hence your clockspeed(and proportionally voltage) is lower at this setting.

 

If you're refering to the SLFM voltage under "management" make sure you've selected the "use custom p-state" option as it defaults to "use p-state detected at start-up" or something like that. if you don't change this you won't be able to modits voltage

 

Thats what i though at first but check the screenshot of his profile page. He doesnt have SuperLFM!

 

you're right!

so umm, that makes no sense at all ditch cpu-z 1.44 and get 1.40 that's the last one that detects voltage properly.

 

Hi all

I have some kind of a strange problem here. Almost two weeks ago I configured my T2370 with flipfire's undervolting guide, flipfire you may be remember me, asking you questions . Anyway my config is: all steps, from 6x to 13x, are set to 0.9500V(value step 6x by default). No problem at all. So 2 days ago had to reinstall Windows XP SP2, and respectively RMClock. Before and after the reinstall my cpu was going flawless at 46-49ºC using RMclock. But after reinstall when I close the lid of my notebook, for example its what I did last night, and then, when I'm back again I find the temp double, closing lid at 48ºC, opening lid 8 hours later and got 85ºC. With the old windows installation I've never had this problem so I don't have a clue how to fix it. The only way I can think of is to never close the lid but..I have a cat and I need to close it
My system's power config: Turn of monitor: yes; Standby: never; Turn of hdd: never; When I close the lid of my portable computer: Do nothing.
Any ideas ? Thank you

 

Yeah that is strange. Must have something to do with the OS stuff since thats the only thing thats changed

Try deleting/uninstalling RMclock and starting again from step 1. Make sure you didnt miss anything.

I cant find a reason to why the temps would go that high when the lid is closed...

Since your on XP, you can try using NHC to undervolt.

 

wow that was fast Thanks man I'll try that. One more thing I forgot to mention in my previous post. Opening the lid, and finding high temp like 84ºC and just leaving my laptop without doing anything, the temp REMAIN high! Restarting the OS, the temp drops at its normal 46-48ºC for 2 minutes! For this I've no explanation either OK I'm going to reinstall RM and see what happens..

 

I get instant email notification when someone posts here

Can you confirm that RMclock is responsible for the high temps? When you delete rmclock, stick around first and see if it still does it.

 

OK *maybe* I can confirm that RMclock is responsible for high temps. Little test, since we spoke I uninstalled RMclock, then deleted any related to RMclock stuff in registry and left my laptop with lid closed for 2 hours. Then using hwmonitor checked the temps and the laptop was at the same temp as when I left it - 48ºC. To be sure I'll make this test at night - will leave it closed for 10 hours or so and will post the results.
One more thing that I can't assure that it's involved in this case but will mention:

1. I have a "Modem Device On A High Definition Audio Bus" which has problem with the driver(its not installed yet and my system attempts to install it on every restart).
2. My touchpad isn't working. Since I turned it off with Synaptic Pointing Device Software with the old windows installacion, now with the new installacion it does not work and should be. Since I don't use it(have external mouse) I've not tried to install it yet.
It doesn't make any sense that these thing are involved in the case but anyway I mention them just in case.

 

That should be your 56k modem. Try look for the right XP drivers. If you dont use it, i suggest you just disable it through the device manager so it doesnt annoy you. I disabled mine along time ago cause i never use it

XP is supposed to have the generic drivers already so you dont have to install drivers for it. Its probably not being found properly. Try installing different versions of the Synaptics software

Also if your touchpad has a lock button, make sure your not silly enough to lock it.

Your fresh install of XP seems to be sketchy... This might also explain why RMclock is also running funny

 

I managed to get RMclock to read my processors voltages correctly. Gonna undervolt the X9000 when I have the time and ofc post my results here

btw it recognized them correctly after a fresh install of vista

 

Good to hear. Did RMclock detect the 15x and 16x OC multipliers?

Can you also post your default voltages for other X9000 users? thanks

 

Hey I'm starting to think that making an unattended copy of my original winxp wasn't such a good idea My punishment for being lazy. Well I guess I have to reinstall windows again using my original cd. Googlin around came up with no results that anyone had similar problems with RMClock so i guess its me.
Thanks a lot for you time and efforts. Respect

 

I'm back with a question..
How can I set RMclock to not reset the profile after rebooting? I unchecked the both of the restore cpu defaults but it's still resetting to no management

 

I am not sure about the x15 and x16, cause I cant get it to overclock through my BIOS. It seems the option is available (.08 BIOS), but if I set it to "CPU Overclock" -> "over x2" nothing appears to happen.
Any help on that would also be great

right, default voltages:
x6: 1.1125V
x7: 1.1375V
x8: 1.1625V
x9: 1.1875V
x10: 1.2125V
x11: 1.2375V
x12: 1.2625V
x13: 1.2875V
x14: 1.3125V

quite high, but then again it is the highest watt penryn-processor

temp: 26C idle, 55-57C load

 

Should be this way: in Profiles main page there is Current Profile option AC POWER and BATTERY and a STARTUP option AC POWER and BATTERY, and in STARTUP you can set the modes which you wants to be loaded on RMclock startup I suppose..

 

As above, the Startup drop down box in the Main profile page, is what RMclock loads when you open the program. Put them both as Peformance On Demand, as it says on the guide

Making it run on Windows-startup is a seperate setting

 

yep it worked thanks

 

Thanks for writing the thread. I tried RMclock years ago but it was very buggy back then and I gave up on it. Now it seems very stable and I'm trying to see how low I can push my computer

 

Quick question--when my 11x multiplier voltage (I have the T7500 and that's top) is lower than some of the intermediate multipliers, is that bad? I'm running it at 1.0500 (stock was 1.2000).

 

You can either run it the same voltage as your 11x or tune them individually for their optimum voltages (this takes time though). The lower the multiplier the less voltage it needs, so you will see a pattern...

Dont touch your 6x of course

 

My current setup. The two highest multipliers have been stress tested a good amount of time (10-12C drop in peak temps) and I'm still working on the middle ones.

 

Weird, you have different idle voltage than me. Its usually default at 0.937v for T7500's but if its stable idling at that voltage then its fine

Heres mine for reference:

 

Yeah I noticed that on your initial screenshot, my 11x multiplier also started .05 lower than your voltage so we're both running .15 under stock but mine just is volted lower. I'm idling at 43-47C with mine.

Edit: Ok got a flat 1.000 for the 11x multiplier and it runs quite stable, max temps 62-63C, idle with browsing, IMing, etc, 42-45 C. Interestingly that even though my 6x voltage is stock lower than yours, my SuperLFM doesn't go any lower than .9 while yours is .85. Was there a fix earlier in the thread to let you override and set the SuperLFM voltage lower?

 

I can't get RMclock to run in Vista 64

 

well did you follow the guide using astiv?

explain ...

 

No

Got it to run once I followed instruction.

 

Wow,my temps dropped close to 14C.
I also have the T7500 and it hit 81C on the stress test, now ,after 15mins it barely got close to 67(66.6C to be exact )
The CPU was the hottest component in my system, but not anymore
I`ll keep testing more , since I only dropped the voltage on the 11x multilplier by about 0.09V ...(wanted to play it safe at the beginning )

 

Should I tick SuperLFM?

Left Default | Right Undervolted

 

Wow dude, you dropped to 0.95 stable from 1.25? O_O
Amazing
Following the guide, it says to leave SuperLFM unchecked.

 

You can also fiddle with SuperLFM if you want, I was able to drop my idle temps 2-3 C. Not much at all but hey why not, it'll come in handy during times I'm on battery.

 

Everyone will get different voltages as not all processors are built equally. If its your first time undervolting and you wanna play it safe, i suggest leaving a 0.025v margin from your unstable voltages

Netkiller: Have you stress tested all the multipliers? they seem unusually low and might crash when your doing low-medium cpu load

For superLFM I said leave it unchecked for now to reduce confusion as not everyone will have this feature

If you have SuperLFM, i suggest ticking it and putting it to 6x, hit apply. This way your cpu will idle at 600mhz instead of 1.2ghz and run at a lower voltage . Leave IDA off as it the gains is negligible and useless.

Read the bottom of the guide where it explains SuperLFM and IDA thoroughly.

 

flipfire: your SuperLFM (Again same T7500 that had different stock voltages earlier) is .8500, which is lower than your 6x multiplier, while my 6x multipler and SuperLFM are both .9000 and don't go any lower. Any ideas why we'd be running into such different voltages on the same CPU? And would I run into any problems by manually changing (Via management tab) my SuperLFM to .8500 like yours?

 

Im not sure but theres been an inconsistency. It could be just the way they pre-set it at factory or RMclock isnt detecting it properly. What notebook do you have? the chipsets might also play a part but im not sure... If your voltages are stable, then its stable, no need to worry about it

You should also have a superlfm of 0.850v aswell. Go to the management section and mess around with the CPU P-state defaults. It might find the right ones.