The "Undervolting" Guide

I got a question.
I got 4 multipliers. All of them (except 0 ) were set for 1.05V. If I test my higher multiplier and it works with 0.95V. Does it mean I can, by definition, set others to 0.95V and they gonna be OK?

 

Yes because the higher the multiplier/clockspeed, the more power it uses. Vice versa.

 

Please post detailed instructions if you can; thanks!

 

I have checked it.

Now I found out that RMclock is the cause of multiplier stuck at 6.
It still at 6 even after I quit RMclock. Need a restart to get back to normal mode.
May be the driver is not compatible.
My OS is Windows 7 build 7100 x64.

 

Flipfire: I wanted to thank you for the awesome guide.

my xps 1640 cpu temps were around 41c idle and 72c load.

After using your guide my cpu now idles at 32c and max load is at 61c.

I could only get my voltage down to 0.9625v but I raised it up to 0.9875v just to be safe. I have had absolutely no problems.

Thanks again

 

Strange thing. Tested 100% load on 0.925 for 45 min and it worked fine. So I set it for 0.9375. Restarted, chenged to Performace on demand and it crashed after like 5 min of gaming...

Now set for 0.95. Should be safe here, I think.

P.S. So, after each restart I have to allow it though defender, and change power management to On demand, right?

 

Sadly this guide needs to be updated to note that People with the new Turion CPU's ( like me ) are SOL when it comes to using rightmark as the new Turions ( like my QL-60 ) are not supported.

 

The P9600 may have lower voltages (below 0,900 Volt)?
Are there any experiences with RmClock or CPUGenie up to now?

 

Hi!

Can someone please tell me how to install RMCpuClock to Vista x64.

I've installed it and run it with admin rights, but I get the error message that it cannot load the driver.

Thanks!

 

strahc, The guide has a 64bit driver different from the main RMClock download.

Anyway, I need some help. I got a refurb Dell E6400 from the outlet with a P8600 (2.4 GHz) processor. I've undervolted before but I'm having problems this time. Before it was a dv5t with the P8600 too.

I have some trouble installing some software, I couldn't install wPrime first of all, and RMClock had some errors. I used the registry wiper in the RMClock folder and deleted RMClock and dled again, no issues this time.

So I ran orthos and HWMonitor last night for around 10 mins, got a max tempt of 61. I ran it this morning again, got a max temp for 65/66C. When I undervolted no difference, even higher temps. I was using Orthos Small FFTs stressing CPU this time, rather than the blind test from the initial test. Then, I set RMClock to the initial voltage it started with, it went up higher, up to 69/70C. Then i "undervolted" again .100v and it went down again, to the same around 64C. I guess it worked, but did it really?

I dropped initially .100 volts on my 9.0x multiplier, from 1.1750v to 1.0750v. I'm testing the 8.0x multiplier at 1.0125v right now, i had some warnings when i was at 0.9875, which was the .100v drop. Original was 1.0875v.

I just BSOD'ed the 7.0x multiplier lowering it to the lowest possible, with was .9250v i believe. I'm a little worried/confused. About to try .9375v

On my dv5t:

# I dropped the 9.0x from 1.0625v to 0.9625v, a total of 0.100v
# For all other multipliers, dropped it to 0.9000v, as it is the lowest it will go.

So, i'm wondering, why such a difference although same processor? I might have screwed up the other multipliers though, I don't think I tested them separately but i don't remember. The 9.0x for sure though, how is it my E6400 BSOD at 1.0500v while the dv5t's P8600 was stable at 0.9625v?

Lastly, how do I get RMClock to turn on on startup automatically without UAC asking me to approve?

 

I've managed to reduce the temp by about 13 degrees under max load. Not bad at all

 

How do you remove the RMClock system tray icon? I hate that pinkish red gear-circle looking thing.

 

You can right-click on taskbar -> Properties -> Notification area:
Hide inactive icons -> Customize and set the rightmark to always hide

This is for Vista, but should be similar for XP.

Chango99, thanks - I've found the link in the guide!

 

I am having issues with random voltage spikes on my Latitude E6400 with the P8400.



Note the two voltage spikes without the corresponding multiplier spikes (which stays put at 6x). But then I also see spikes in the CPU speeds in the two top graphs...

Also, has anyone found a way to start RMClock for limited users without disabling UAC?

 

Yes thats what I did but that HIDEs it, doesn't REMOVE it. Now I have 2 little arrows instead of a pinkish-red circle-gear thing. I want the icon to be non-existant, removed from the system tray.

 

I forgot how to do this. How do I have RMClock enabled at start up so that I don't have to confirm it through UAC?

 

RMclock isnt behaving properly on my laptop.
I've got a QX9300 quad core.. I tried setting it to power savings(default) but with Prime95(quadcore) I still get the same temps of 84C after 15mins.

my background: i'm a desktop overclocker. OC'd my Q6600 to 3.6Ghz. so I'm familiar with most tools hence i prefer to use coretemp and prime95. only thing is that the laptop doesn't have BIOS like desktop do.

another thing is my Core clock and throttle is different speed. still trying to figure out why.

on top of that my multiplier is 9.5x.. but RMClock is showing me 10x if it's 10x then the CPU would be 2.66Ghz

I really want to reduce power consumption. even @ idle it's already 1.6Ghz on all 4 cores.


sigh how i wish NHC works with vista. it was so easy to use.

 

I have Dell Studio 1735 with T8100...
According to all posts it can work on .9V on all freq...
Mine problem is that I cant force voltages less then 1V...
Where is problem?
May be I need to do something in Advanced CPU settings menu???

 

Is there a way to unlock voltages on RMclock ???? I can't go lower than 1.05 V...

 

Kallogan: it is. Go to the installation directory where you can find RMClock_Tweaks.reg. You have plenty options there to set.

You just need to create a new key ("UnlockVid"=dword:00000000 and put it to 1) in registry in [HKEY_CURRENT_USER\Software\RightMark\RMClock].

Has anyone found out how to get RMClock start without Allowing it every time in vista? (and wihtout tourning UAC off)

 

Had you done a search, you would have found the following:

 

I have a simliar issue, though my max VID is set to 1.050 [9x Multi] there are occasional spikes in VID that goto 1.1375 [9x Multi]. Is this normal?

[edit: actually its quiet frequent]

 

I'm an experienced RMClock user and have used it in the past 5 notebooks I've had with awesome results (especially with the Dothan Pentium Ms). I haven't used it with the laptop in my sig however because there is a big issue I cannot figure out. On Santa Rosa notebooks the lowest multi should be 6x but the chipset also throttles to half FSB to lower the clocks at idle to 600mhz. However my laptop's lowest multi (with no multi/vid altering software active like RMClock or CPUgenie) is 8x at half fsb throttle for 800mhz. Is this the way that the X9000 chip just is?

The other major issue is that when performance on demand is activated, the fsb throttle stops working in RMClock thus making the lowest CPU speed 1.2ghz at 8x. In addition the lowest VID I can achieve with the Penryn X9000 is 1.0V (even with registry modifications to allow lower voltages in the program, although the lower VIDs are an option, the computer actually can only go to 1.0V at the lowest). An interesting note though is that undervolting via CPUgenie does allow FSB throttling to let it idle at 800mhz at 8x multi (but the lowest VID possible is still 1.0v since that seems to be hardware locked, as CPUgenie also has lower options that the hardware won't allow).

Help please from the experten re: this fsb throttling problem with RMClock (I'd much rather use RMClock, CPUgenie pops nag screens for its trial version and lacks many options), and if the lowest multi for the x9000 is indeed 8x? I have no option for the superLFM modes (RMClock is set to mobile under advanced CPU).

This laptop runs pretty hot, help is much appreciated.

 

1.0v is very low already, my t9400 can't even go that low.

 

sigh. i wish that my QX9300 can do 3x clock.

bear in mind that it's 266x8 x4 cores. that's 1.6Ghz x4 @ idle. I wish it can reduce the multiplier and speed like the old sonoma CPU where it's just 800mhz @idle.

I remember when i had sonoma 780, it was 0.650v @ 800mhz x6 & [email protected] x17

 

That's surprising considering the stock voltage lower limit is 1.050v for your chip. I'd think that at least at the lowest multi you'd be able to do 1.0v or even 0.95v if your hardware supported it that is.

My lowest hardware support with RMclock or GPUgenie after unlocking their voltage limits software wise is still 1.0v which is a bummer.

Also I just discovered yesterday that while CPUgenie I thought was working better than RMclock because it allowed FSB throttling while RMClock fsb throttling did not work at all (see 2 posts above), to my dismay CPUgenie would get stuck on the highest multi and after 5 or 10 minutes (running at 2800mhz) and never step back down from that speed. I really don't think I'm going to be able to use any undervolting software successfully on this machine?? Any ideas anyone? Has anyone undervolted a Core 2 Extreme X9000?

 

I tried today for the first time to undervolt my SXPS 16 and managed to achieve 1,0625V (from 1.3625V) with my T9400! I think that is very good?
Temps dropped from 89c to 62c!

 

your laptop might have problems if it was at 89C

 

No it is a Dell Studio XPS 1640 The laptop is famous about its warmth problems because the LCD screen blocks a part of the air outtake, good work Dell!

 

One for "Undervolting's Greatest Hits" album. Not battery life, not fan noise, but screen blocks cooling airflow. Geez, just when we've seen everything. Can't you do your video rendering with the lid closed. That'll help. I'm positive..........

 

LOL! Well with this undervolting guide helped me to make sure I CAN safe render video Temps are now "normal"

 

I just realized, whats a point of testing lowest multiplier on max cpu? Orthos shows 2777Mhz. It's max for the laptop. On this speed, it's always highest multiplier only...
?

P.S. Is it ok to run other programs, like firefox, when testing stability on orthos?

 

You can set your max multiplier on RMclock (on the main profile page), that should then be your max. Works for me.

 

Ok, never mind. Orthos always shows 2777Ghz, even on lowest multiplier.RMclock shows lower one. I thought it always stays on 2777 for a second.

 

I have just started to undervolt my thinkpad as the fan has been making alot of noise for a while now. I have a T7300 2.0ghz core 2 duo processor

I was just wondering I dont seem to have the adjustment that the main guide had. For example my max voltage for the 10x multiplier is 2.1250 then it goes down by .125 heres the list 2.1250, 2.1125, 1.1000(current voltage im running) then it keeps going down by the same. I want to be able to move it down in the smaller increments like were discribed but I cant seem to find any settings to change it.

every multiplier is the same I can only change it in .125 increments which is a pretty big increment. I would much rather be able to change them by .025 each time.

 

Hi guys, I need help!

For a week my undervolt is working flawless. The only problem I discovered today is that when playing music there are sometimes some crackings in the sound. When I shut down RMClock the problem is solved. I think it has something to do with the voltage swiching of the processor? Is it possible to solve this problem? I really love my undervolt but also my sound...

Thanks for any help!

 

Set your machine to max speed and leave it there. Once you've undervolted, there is no need to switch speeds anymore. Load is what determines current, amps, battery drain, not the processor frequency. And don't forget to tape the vents closed, heh heh. See your Private Msg.

 

Nobody knows how to get rid of the system tray icon?

Registry change to remove it?

 

Try rightclick on that bottom strip(whatever you call it)-Properties-Notification Area-Customise-Hide

 

That hides it, that doesn't remove it. I want it REMOVED from the system tray, not hidden. Once I do all the testing, all the settings are going to stay the same. I don't want the icon in the system tray at all, I just want the service to run in the background.

 

LOL!
Will try that

 

The only way to remove the icon from the system tray is to end the program.

However, without it running, your CPU will not be undervolted.

Good luck.

 

anyone know why I dont have the same adjustment as described in the main guide??

I suppose its not big deal I havent tried to go any lower then 1.1000. Plus when its idling It on superLFM(CPU-Z core speed doesnt match with right mark). it does seem to be alot cooler under full load now. Thats all i was worried about when I am doing processor intensive work. With the fan making noise it still gets going fast enough to keep it cool. I use several different programs to read temps. It seems like right mark displays temps alot hotter. Im not sure what that means I just thought I would mention it. For example tpfancontrol and everest when idling display a temp of 40c but right mark says 53c.

 

There is a way to do it, it's not impossible. It will just take some windows editing if it cant be done through rmclock.

 

This is fantastic (no pun intended).

I just started using this on max multiplier and there is about a 15C difference between normal voltage and undervolting to .9250v (lowest it will go on the basic drop down listing). No issues so far, but I'll let it run overnight and play with more settings in the morning. Just what the doctor ordered to cool down a hot M1330 (with T6300 C2D).

Set it to run at startup with full privs based on this link: http://www.amindlost.co.uk/?p=276 (I think its listed somewhere in this thread)

THANKS OP!

 

i undervolt it but the temps still the same... im not sure if im doing something wrong or what... ill apreciate some help

thanks

 

How much did you undervolt it? You might not see much change first.

What program do you use? If it is RMclock, you should be able to see lower voltages in the monitor section of the program, or if you hover your mouse over the icon.

 

This has probably been asked but does anyone know how I can stop Vista UAC from popping up every time my notebook startup (asking me to allow RMClock to run)? I don't really want to turn UAC off completely but so far that's the only way I can see to do it.

Thanks for any help

 

Would CPUgenie be the best undervolting program for a P8400 CPU? I searched through this thread and RMclock can't read .5 multipliers for the P8400.

 

Several posts have reminded me of a true story of a guy who was told to put silver duct tape over the air vent to reduce fan noise. When his notebook kept cutting out, he took it to a repair shop. The technician, after seeing the tape, told the owner to sell all his computer equipment immediately on Ebay.

"Why?", the owner asked.

Tech replied: "Because you're too freaking stupid to own one".