The "Undervolting" Guide

You must be referring to the Vista64 bit signed driver. It is linked in the OP
http://rapidshare.com/files/112841889/RTCore64.sys

 

Did you use the same method as descripted in the first post? Moreover, did you use AMD's or RMC's P States?
One more thing, the temperatures as shown in HWMonitor is quite different than the ones shown in RMC. The Difference sometimes has a difference of about 8 - 9 C. RMC rarely goes above 80, where has HWMonitor shows highes of 88 - 89. Which one would you consider more accurate?

 

so i doubt i will be overclocking, but just in case...

does OCing require more voltage? such that if i were to undervolt, i would have to bring it back to stock settings to OC the cpu or something like that? or could i undervolt and then see how much i could OC with that?

 

this guide worked great! dropped my temp from 83 - 59 degrees c! dropped the 1.25V to .975V!

 

can undervolting potentially raise my gpu temp in my dv5t since the fan wont kick in until the cpu his a certain temp...

the hp dv5t has some heating problems at times and i don't know if undervolting could actually raise the temps for the sensitive gpu

 

starting my undervolting... i have a p8600

my highest multiplier (x9) is undervolted and works, but whenever i restart rmclock doesnt save the "use p-state transitions" under the performance on demand tab. is there a way to keep it saved?

 

In Management > CPU defaults settings > CPU defaults selection --> Custom P-State: ?? (Select the highest/whichever)

 

I just undervolted my T9400 2.53Ghz and i was able to lower the voltages greatly. I get about an hour more of battery life under light usage

9.0x - .9875
8.0x - .9250
7.0x - .9125
6.0x - .9000 (lowest it will go)

Thanks for the guide

 

I've used both AMD and RMC P States. Use which ever is stable and coolest.

I would trust HWMonitor more because it is constantly updated. Temps for my TL-50 are spot on with RMC but some have mentioned differences even with the TL-50.
If they are reading the same sensors they should read the same but sometimes this does not work. HWMonitor, Everest, CoreTemp should all read the same. Each CPU, BIOS, etc. combination can be different in reading temps.

 

How you know when you're all done tweaking?

When you set RMClock to the lowest stable voltage at the fastest CPU speed and just leave it there, on AC or on Battery. Under no-load conditions, you can determine that there is only a 1 or 2 watt difference in CPU power usage between highest and lowest speeds. Operating a valve on and off, on an empty pipeline, consumes next-to-nothing in power. It's all about the load (or electron flow through the circuits). At top speed your computing job should take about half the time at double the watts = a push. Idleing at top GHz costs nothing when compared to screen and disk watts. Simplicity via a long road..... Next project please, ha ha !

Thx for everything guys.

 

Anyone have another link for that Vista 64 signed driver? The one in the guide appears to have expired.

 

The link seems to be working (not expired).

 

Hi guys, I'm trying to do this undervolting can you please check if Im getting correct default voltage for this cpu. Also can you please check what kind of mobo I am having because this mobo is just newly replaced by Dell because of the GPU problem.






I'm not sure if Im doing it right because I was able to pin down the highest X to 0.9625.
Btw, can undervolting do damage to my cpu? Because as you can see on my test, I skip some voltage. For example the test 2 & test 3, there is still 4V separating between the 2.


Here are my test results.

==================
Default (before undervolting)
Duration: 12mins

9.0x 1.1750v
max temp
c0 77
c1 79
gpu 78

==================
TEST 1
Duration: 60mins

9 @1.1250
max temp
c0 75
c1 77
gpu 78

==================
TEST 2
Duration: 90mins

9 @1.0875
max temp
c0 71
c1 73
gpu 75

==================
TEST 3
Duration: 90mins

9 @1.0250
max temp
c0 67
c1 69
gpu 73

==================
TEST 4
Duration: 90mins

9 @0.9875
max temp
c0 66
c1 68
gpu 73

==================
TEST 5
Duration: 120mins

9 @0.9625
max temp
c0 64
c1 66
gpu 72


If my TEST 5 is stable for example for 12hrs, can I use that voltage to my 7x & 8x?

As you can see on my default voltage image (if correct) 0.9625 is lower than 7x & 8x

6x = 0.9000
7x = 0.9875
8x = 1.0875
9x = 1.1750

So, can it be something like this?

6x = 0.9000
7x = 0.9625
8x = 0.9625
9x = 0.9625

Thanks

 

You can use it at any "stable" voltage. It is all about stability. There is no such thing as too low in voltage, too stable, too fast, too rich ... well you know what I mean.

There is no magic to testing. Tests such as Orthos simply let you stress the system higher and quicker than booting up you favorite game and having it crash. Real world use is the ultimate test.

 

hmmm.. im really not a gaming type of person.. im just using it for internet, watching dvd movies, video chat.. but not any games... hmm.. maybe i should try??

currently im testing at 0.9375... & there is only 4 voltage choices.. 0.9250, 0.9125 and .9000. Right now my setting is like this:

6x = 0.9000
7x = 0.9125
8x = 0.9250
9x = 0.9375

can I still lower down the voltage to .9000?? give that there are no errors?

thanks

 

Hi, is there anyone here able to trim down their highest X to the lowest level? like for example for me, the lowest option only is 0.9000. can I set all the X's to this if the test is stable?

Btw, why do I have only 6,7,8,9 x's? Some of you have 12x hmm..

 

The multiplier settings depends on your CPU and FSB.
Example if you have a 800MHz FSB and 2.0GHz CPU your multipliers will be up to 10X (200Mhz x 10). If you have a similar CPU (2.1GHz) but a 1066MHz FSB your multipliers will only go up to 8X (266Mhz x 8).

 

Those are multipliers. Your processor speed is determined by your front side bus speed multiplied by, well, the multiplier. Your front side bus is basically the part of your motherboard "in between" everything - it's what lets you processor talk to other system components, and gets everything running at the same speed.

For a T9300 in my Clevo M570RU, rated at 2.5ghz, there are 6x to 12.5x multipliers. It runs on a base bus speed of 200mhz. So, at the lowest multiplier (6x) my processor is running at 1200mhz (1.2ghz). At 12.5x, you get 12.5x200=2500mhz.

Slower processors typically have lower multipliers. Faster processors, then, have higher multipliers.

You overclock a processor then by selecting a higher multiplier than what is normally available, however typically laptop BIOS and processors do not allow processor overclocks. We can however overclock by using a program like SetFSB, which allows you to alter your bus speed. So, if I were to increase my bus speed to 233mhz, at max speed (12.5x multiplier) my processor would be running at 233x12.5=2912.5mhz (2.9ghz).

 

The link itself works but when you go to download the file it says it's expired.

 

the rapidshare link works fine.. just tried it.

Ive attached it to the forum http://forum.notebookreview.com/attachment.php?attachmentid=24096&d=1221194853

 

Thanks. I don't know why it was telling me that.

 

Just finished my testing, please suggest what volgate I will use based on the test. This is only for my highest X.

Thanks

==================
Default (before undervolting)
Duration: 12mins

9.0x 1.1750v
max temp
c0 77
c1 79
gpu 78

==================
TEST 1 - STABLE
Duration: 60mins

9 @1.1250
max temp
c0 75
c1 77
gpu 78

==================
TEST 2 - STABLE
Duration: 90mins

9 @1.0875
max temp
c0 71
c1 73
gpu 75

==================
TEST 3 - STABLE
Duration: 90mins

9 @1.0250
max temp
c0 67
c1 69
gpu 73

==================
TEST 4 - STABLE
Duration: 90mins

9 @0.9875
max temp
c0 66
c1 68
gpu 73

==================
TEST 5 - STABLE
Duration: 120mins

9 @0.9625
max temp
c0 64
c1 66
gpu 72

==================
TEST 6 - STABLE
Duration: 120mins

9 @0.9375
max temp
c0 63
c1 65
gpu 71

==================
TEST 7 - STABLE
Duration: 160mins

9 @0.9250
max temp
c0 62
c1 63
gpu 70

==================
TEST 8 - error on orthos
Duration: 8mins

9 @0.9125
max temp
c0 60
c1 62
gpu 69

==================
TEST 9 - BSOD
Duration: x

9 @0.9000
max temp
c0 x
c1 x
gpu x

 

i need some help. i just installed a new T8300 last night and i went to undervolt and whenever i check the cpu info in rmclock or cpuz the voltage doesn't go down.i'm not sure if this matters but under cpu info it states "unknown core"

 

Have you gone thru device manager and deleted the old cpu so it can reinstall the new? And with RMClock, go to your settings screen, one of the lower tabs on the list, and make sure you dont have auto or desktop selected. Set it to mobile CPU. See if that helps.

 

i did that first after i installed the new processor, but it was already gone and recognized the new one. with RMClock i did that, i checked all my settings a few times. i just got done reseating the cpu and am going to try in a little while.

 

The RMC settings are always default when I start RMC (P8400) and I have to enter the setting again. Any idea why they are not saved?

Edit: I was not entering Per on demand in Startup.

 

Close RMclock

Run RMwipeout.reg

and start the guide again

 

tried that and still doesn't work, i also tried reinstalling and still won't work

 

Anyone know how to access the 11.5 multiplier with the x9100 on RMClock? Tried setting all multipliers visible in the .ini and registry. Next idea?

 

I believe RMClock does not recognise half-multipliers. Try turning on IDA, and see if that helps.

 

the cpu doesnt support ida.. I dont believe. I dont have the option to turn it on.

 

Probably Penryn XEs are missing IDA. ( This states it supports IDA)

Run RMwipeout.reg. It will flush all the RMClock settings to default, and see if IDA shows up.

 

thanks for the guide. i was able to lower my voltage from 1.25 to 1.05. before, my max temp running orthos for 10 minutes was about 81C. After lowering voltages, max temp is now around 68-69C for decrease of about 12C in temperature. Never BSOD'd yet so I think I can still lower it a bit. overall i am very happy with the results. wasn't too hard, just time consuming.

probably still going to get a notebook cooler, wonder how low the temperature will get.

 

i got it to work and got the 12.0x on my T8300 down to 0.9875v. i went lower but when i hit 0.9625v i got an error with orthos.

i think i'm going to have to download HWmonitor again cause it won't show temps lower than 40C, but any other monitor will.

 

how can I possibly undervolt my AMD RM-70 on PUMA?
DV5Z

 

Hmm... I just tried underclocking my T8300. The lowest I can go is 1.0250v. Any lower than that, Orthos gives me error messages. Wonder why mine is so high compared to others.

PS1: I noticed that the latest CPU-Z does not register the voltage drop. It stays stable on the original voltage. Is it because the latest version is still buggy?

PS2: I selected the lowest voltage, which iis 0.95v for all multipliers except the largest one, but the Req. Vcore shows the voltage as 1.00V. Does this mean that 1.00V is lowest I can go?

 

Im afraid the newest AMD chips arent supported. No way to undervolt them AFAIK.

Each chip has its tolerances. All the magic depends on how it is manufactured in the factory.

Yes CPU-z has issues reading merom/penryn chips after v1.41 . They stopped support for it meaning it will show desktop equivalent voltages of the chip. Any version will work fine for yonah chips and older.

The lowest you can go, is when it BSODs or you reach the lowest voltage you can select.

 

Thanks for the information. I guess I'm not so lucky afterall. Anyway, I think the lowest I can go for any multiplier is 1.00V. As you can see, when the computer is running on 6 multipliers, CPU-Z and RMclock shows the voltage as 1.00V even though I set it to 0.95V. Wonder why.

 

Undervolting Results

Processor: AMD Turion TL58 (1.9 Ghz)

BEFORE:



Voltage: 1.150v
Multiplier: 9.5

Max Temperatures:
THRM: 96C
Core1: 64C
Core2: 81C

AFTER:



Voltage: 0.9v
Multiplier: 9.5

Max Temperatures:
THRM: 80C
Core1: 59C
Core2: 70C

Question: Do I just need to Check Mark the AutoAdjust VID States for the RMC to automatically Adjust voltage for all the other Multipliers.

 

hey guys, i'm trying to undervolt, i have a few questions. I'm wondering why HWMonitor doesn't show my processor P8600 while CPUZ does, and why my CPU Core and Revision are unknown in RM clock. Also, why are all my volts the same for each multiplier, shouldn't they be less in each increment? (The last one is lower only because i'm going to attempt to undervolt it right now)

 

Extend the Sensor Tab in HWMonitor.

RMClock seems to have a few glitches. Maybe it is not fully compatible yet. It does show all the proper multipliers, but no IDA. You don't really need IDA, since the P8600 doesn't have half-multipliers.
Have you tried undervolting ?

 

What do you mean extend the sensor tab? Extending the window does nothing.

I'm currently undervolting and letting the stress test for 45 minutes.

edit: For the multiplier, i meant the volts for each corresponding multiplier, why are the volts all the same? Right now i'm at 10 minutes and my temps are the same before the undervolt except on GPU its 2C higher. All I did was undervolt my highest multiplier to 1.5v instead of 1.625

 

Have you tried extending the tab ?? Thats why it is showing dots....



Those are not the active voltages, but the voltages that you can assign. (VID drop-down box)

 

Ohh lol ok, thanks on that.

 

Well any help why my volts on all multipliers are the same? I remember on a 2.53GHz T9400 CPU on my other dv5t the volts were lower for each, why not here? Also, i have a 2.4GHz but it only shows 2.39 GHz, is this alright?

 

so i ran rm and followed the guide but i can't seem to lower the voltage on any of the multipliers any lower then 1.1500V...i was able to shave off about 10degrees while running ORTHOS for about 15 minutes but i was hoping for more since the notebook is still getting hot. I am runnig vista 64bit and the gateway 6864h FX which is using the T5750 ... can anyone explain why i cant reduce the voltage any lower?

 

I don't know why it is showing the same voltages. Try clicking 'Defaults'.
That page is basically an editor, so you can find the minimum voltage for each multiplier, and then assign it.
And losing 10MHz is not a big deal.

You should post your queries here....

 

Did you select "Mobile" in 'CPU type selection:' (Advanced CPU settings)
Also check 'Apply these settings at startup'....

 

Mack, you should check each multiplier for stability. I know on my Opteron it will try to auto set the voltages, and most of the voltages it selected were causing stability issues. Your best bet is to run Orthos on all of the multipliers. It takes time, but it will be well worth it.
I see you took my advice by selecting the "use AMD transistors box", it makes a difference

K-TRON

 

I hit defaults and yeah its working right... currently undervolting by .0125, no decrease in temps yet.