Undervolting Penryn?

Well I tried to use an older version but it would not let me. Kept saying a new version was out and to see the maker. I found on some boards someone having the same problem, but none addressed it. I hope that a new version of the program at some point will fix this. I still have so many things to fix on this laptop, this is just one on my list of many to improve an already good machine. If anyone sees anything post it.

 

Is a new RMClock being developed that unlocks the 12.5x multiplier?

 

Hi guys! maybe I get some help here

It looks like my t8100 is not working as it should under XP, the speedstep goes only from 8x to 10x, it has very short moments when CPUZ is showing 6x but only after full speed; most of the time it is showing 8x

Under Vista speestep it's working normally from 6X to 10X
RM CPU Clock it's showing the same.

I use XP with the last SP3 (beta) available

Did I miss something when installing XP??

Thanks!!

 

6x is your idle multiplier, it will only go to 6x if there is NO load being put to the CPU. Something in the background is probably running causing it to use the 8x (1.6ghz) multiplier

 

Thanks, it's strange because usually XP is using less cpu, but still under vista the speedstep is more flexible so I can see often 6x (1.2 Mhz), under XP it's more stable, most of the time 8X(1.6Mhz) even if task manager is showing 0 or 1% CPU usage

 

Vista can utilize multi-core cpu's. XP can only do single core unless you have the patch. This might have something to do with it

 

Thanks. The patch for the multicore is installed.
I managed using the RM CPU clock to force XP to use all the multipliers and now 6x it's available.

The moment I exit RMCPU clock XP it's back on the old behaviour ; multipliers only from 8 to 10.5

Strange behaviour, the same XP SP3 it's showing full speedstep with one desktop Conroe

 

Hi guys!
I'm "new" I finally got my Dell XPS 1530 with a T9300 Penryn and Im trying to undervolt it. For now it seems to run stable (tested with orthos) with following settings:
6x - 10x -> 0,925V
11x -> 0,95V
12x -> 1,0V
But im still testing the 10x-12x because i want them to be at least 12hrs stable under orthos.

But i still got some questions:
-Does the CPU produce more heat running with 10x and 0,925V than running with 6x and 0,925V? It seems so... but why? The Voltage is the same.
-Why did Intel set the lowest Voltage that high? It seems that the CPU could run on even lower Voltages...
-Is XP able to handle a Penryn like Vista? What disadvantages concerning Powermanagement do I have with XP?

Thanks a lot! This thread was the most helpful I found....

 

RMClock limits me to .95V on all multipliers with my T9300. What are your temps like at 6x .925V?

 

OlMightyGreek

Both processor makers have a standard volt that their processors run at. No processor is the same, some can run on much less voltage and others not so much. For instance your 12x is at 1.0v while mine only lets me go to 1.0125v. Your 11x is at 0.95v and mine would only do 0.9625. The rest of mine are all 0.95 because I have no option to go any lower. Hope this helps.

 

I have also a T9300. Every time I try to enter the submenu of "profiles", as you can see the CPU stuck at 100% and I can not do anything with RM.

What is the problem?

 

Follow my guide on my sig. I dont think your CPU was detected properly

 

cpu-Z detect my T9300 as penryn but rightmark detect it as wolfdale!!

 

I have a T8300 and i undervolted my 12X to 0.95V with no problems so far
Just a quick question, how do you lower the lowest selectable voltage? Mine is capped at 0.925V....thanks!

 

you cant. 6x multiplier is the idle voltage, this is locked in on purpose


Is 0.925v for superLFM aswell?

 

yes it is~

am I the only one on this thread with T8300?

although I can undervolt to a lower voltage than non-penryns...the changes in temperature aren't as drastic as far as I can see, since it started at a lower temp already

 

how low temps are we talking about?

results can vary.

You should be getting idle temps of around 40c and max temps of 65c ish

 

right on! According to HWmonitor, I'm getting lows of 40c and max of 66c
rmclock usually has the temps 4-5c lower

just a quick question, does having a more powerful gfx card affect the cpu temp? I have a Geforce 8600m GT DDR3 256mb and its max temp is ~74c

 

yes, as they share the same heatsink but its not significant change

 

I've got a T8300 as well. My max is 66
My 'idle' is 50 though!
How is everybody getting such low idle temps?
Mine barely goes down to the SLF 600Mhz most of the time.

I've tried turning off all the unnecassary processes, but still getting 49 idle.
Or do you guys have the 9 cell battery giving more airflow?

 

Something is probably still running in your background unknowingly eating up CPU, thats why its not going down to superLFM idle

Have you done a clean install?

 

Yes I've done a clean install. It appears to be NOD32, with high read and write I/O. Would this happen with any AV program?
It's not too bad now, I have 41 idle.

I have a question. I've noticed that using the maximal performance mode, with no transitional cpu steps, gives better (instant) performance, as there is no lag time for the steps to increase. Is this true, or am I not understanding this properly.

If so, is there any disadvantage running at the highest CPU speed all the time when running on AC? (As long as the temperature isn't excessive)

Any advise appreciated!

 

AVG definately doesnt do this. Its a low resource AV

No, other than eating up more electricity. The temps will only go up depending on the CPU load

Speedstep throttling is nearly as effective, its not 100% instant but the reponse is still fast and snappy

 

flipfire- thanks for clarifying

 

got a problem: my rmclock says that my penryn is a wolfendale and i cant undervolt it correctly. on an identical system it detects it correctly.. why?
solved:bios problem.

 

I'm starting to work on undervolting my 9700t (stats in sig below) and already got one BSOD when I lowered it too low (but not even as low as some of you have successfully achieved with the same processor on the same laptop), so I'm wondering if I just don't have the balance right? I've never done this before, so I'd love some help, please.

In RMClock, when the grey icon starts turning red in places (I've got mine constantly switching from 25 to 100% red), is that bad/a warning? Does that mean I'm undervolting too much?

Here is what I'm going to try next, a bit higher than I was trying before, before I start it testing in Orthos, can you tell me if it looks reasonably correct?

Index 0 - 6x - 0.9500v
Index 1 - 6x - 0.9500v
Index 2 - 7x - 0.9875v
Index 3 - 8x - 1.0125v
Index 4 - 9x - 1.0500v
Index 5 - 10x - 1.0750v
Index 6 - 11x - 1.1125v
Index 7 - 12x - 1.1550v
Index 8 - 13x - 1.2250v (unchecked)

 

If your talking about the grey wheel icon, that shows how much CPU load there is

Have you read my guide?

 

Let's keep this thread alive!

I have a T9300. I'm trying to undervolt using 1.0125 for 12x , 0.9615 for 11x, 0.9500 for 2-5x and 0.9250 for 6x and SuperLFM

What do you think? Are those correct settings?

 

There are no "correct" settings as each CPU will have different threshold voltages that it can go at in each multiplier. The only thing that you can do is test each multiplier that you want to use by allowing it to be either:
a) the highest multiplier used in the performance on demand profile
b) the checked multiplier in the performance profile
Then test with Orthos or Prime95 (2 instances needed for Prime). Be aware that BSODs can occur but to this date I haven't (and believe I won't ever) have damage to the CPU. Check out the undervolting guide for more info.
http://forum.notebookreview.com/showthread.php?t=235824

EDIT: I should be getting my T8300 and AS5 before the upcoming weekend, soon thereafter I should be able to report back here with my changes.

 

Sorry ive been away for a few days..

As notyou said above, there are no specific correct settings. If its rock stable then its correct.

Your voltages are fine from the looks of it

 

Ok, here are my first results for a T9300 and i have some quesions.

At 12X

Test V Temp Time of test
Original...............1.1375.................80.........45 min
Test 1 ...............1.0875.................77.........45 min
Test 2................1.0375.................74.5......45 min
Test 3................0.9875.................65.5.......45 min
Test 4................ 0.9625.................BSOD...... 1 min
Test 5................ 0.9750.................BSOD.......5 Min
Test 6................0.9875.................67...........3 Hours 1 min

i Got a total undervolting of .150 V and reduction of 13 C wich i think is good.
still i have to change ther rest of the multipliers

My questions are:


1.- After testing .9875 for 3 hours, should i keep this setting, or should i go to 1.000?

2.- If i keep one of these two, where should i start testing for 11X.?

3.- Where sould i stop undervolting in 9X? 8X? 7X?

4.- what sould i do with super LFM?


Thanks for your opinions, I know that each configuration is different, and no one can tell me exactly what t do, but opinions will be verry helpful to continue my undervolting.


Thanks o all

 

I forgot to atthach my screen shot

 

1) I suggest setting it to 1v to make a margin on your unstable voltages. This way we know it will be even rock stable.

2) Rule of thumb, the lower the clockspeed/multiplier the less voltage it needs to run. So if 11x is 1v, you can undervolt the multipliers below 11x under 1v.

3) To make the most out of undervolting you can find every multipliers optimum voltages. This is a time consuming process going through each multiplier. If you want a shortcut, you can just set your 8x to 12x to 1v

4) SuperLFM is a supercool feature. It lets your processor idle at an even lower clock speed. I suggest ticking it and setting it to 6x so it idles at 600mhz instead of the usual 1.2ghz

 

hey guys heres my screenshot of my settings for my t9300. just for comparison. anyone getting lower than this?

 

wtf?!?! how are u getting lower than .9500??

 

I also get .9250 in the 2 first ones (T9300)

 

i don't get it... how?

 

It was my default... I didn't do anything special.

Do you have a T9300?

 

yes i have a t9300 =/

 

Same here my default is .95.
Just that we are on the same page, the default/max voltage is 1.1375 right?

Could you post the CPU info page to. Im thinking some of us have different revisions giving us different stock values for that lower end.

 

Yeah I'm running a T9300 also, and my lowest values are .95 for everything. I did get it to run for 1 hr. 50 min. or Orthos at .975 on 12x with no problems. Still getting max temps of 73, 74 C after that time though. Maybe a warm room has something to do with it. I might bump it up one just to be extra safe.

Do i need to test it further?

 

Probably not..

What were your temps before? 74c is kinda high for an undervolted penryn

 

My old temps were 80, 81 C after only 10 min, so it is at least some drop, I just wasn't sure how or why other people were running so much cooler. My low end temps are around 44 C, but I haven't tinkered any with voltages for low multipliers, and Idon't think it is going into SuperLFM.

 

Some others have asked about this but I haven't seen any responses. RMClock recognizes the t9300 in my np2092 as a wolfdale...any solutions for this?

bah just realized this thread is a little old, sorry.

 

See the undervolting guide for further questions

http://forum.notebookreview.com/showthread.php?t=235824

Go to Advanced CPU settings page and choose Mobile > Apply.

 

tried undervolting my T9400 and the lowest vid i can go for my highest multiplier is 0.950V any lower than it is being locked by intel.. since 0.950V is the lowest i suppose its safe for me to put 0.95V into all other multipliers ?

6,7,8,9.0x FID are all with 0.950V VID

 

If your highest multiplier goes to the lowest on RMClock and it is stable, it's safe to put the lower multipliers at the same voltage.

 

alright thanks.. i got my t9400 from 1.15v to 0.950v .. wish theres something that can unlock the locked VID by intel

 

Hey,

I have a question... Even when I run the Benchmark (Orthos i presume), my FID doesnot change from x6... I have a heating issue (in my XPS 1330 - i don't get any heat transfer between the fan and the heatpipe - oh btw they have a new generation mainboard) and the idling T is usually around 55-60 C, with my GPU idles around 85 C. The Orthos should hif the FID to x12 normally but my FID stays at x6 even if the CPU load is 100% do you have any idea why it stays like that?

Edit - I followed THE undervolting guide step-by-step.

Thanks

C

 

Hi this thread is awesome,

I have a gateway M-153Xl with a t8300 penryn

The latest version of Rm Clock does not identify my cpu, it says unknown for CPU core and Revision Name, what is wrong?
Cpu type is checked as mobile.
Thx