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3940XM overclocking - parameters to change.


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Hi, 

 

I decided to upgrade my "new" M18X R2. First GPU and CPU.

 

Originally I had 3740QM with one pipe heatsink.

 

image.thumb.jpeg.999d7496882ba81460b9e2f82f6cc49d.jpeg

 

I bought 3940XM and three pipes heatsink. I bought liquid metal too.

 

image.thumb.jpeg.855afb67dfacfb1b9d00c62f431f849f.jpeg

 

I installed CPU in slot and used Conductonaut

 

image.thumb.jpeg.c48f3b4ba4a0c2f005e053fa7a4f9be1.jpeg

 

image.thumb.jpeg.01c207db308a949ad943ad5412a5c5d8.jpeg

 

image.thumb.jpeg.986087a04bdbf2b1ffea49b664f23c12.jpeg

 

BIOS recognized XM at start. Time to tests....

Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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Before I replaced CPU I check temps in CPU-Z and Speccy. Old 3740QM with thermal paste and one pipe heatsink had about 85C in stress test.

 

image.thumb.jpeg.3b2ca8d42d45bf743dc6d65cdd055611.jpeg

 

3940XM on the same CPU-Z stress test had about 73C

 

image.thumb.jpeg.a97de9e45bf9b44ff272d800f58b1d6c.jpeg

 

I chenged BIOS OC options to Level 3 and started again, started stress this time CPU has about 81C

 

image.thumb.jpeg.33e445e36d425c093623e8d62d171e2b.jpeg

 

want more !!! I changed Level 3 option :

1 -Core Ratio Limit from 44 to 45

2 -Core Ratio Limit from 42 to 44

3 -Core Ratio Limit from 41 to 43

4 -Core Ratio Limit from 40 to 42

started system and pushed stress test. Fan goes with higher RPM ( but still can goes higher ) and temps are about 80C. 

 

image.thumb.jpeg.f6b812c51bda5f4cb77c3c7aaec8c807.jpeg

 

System is stable. Temps are stable. Can I go higher with clock ?? If yes, please tell me what else I should change in BIOS.

 

EDIT:

 

I rise ratio to 45. System works stable with 87 C. 

 

image.thumb.jpeg.904943bfdd3a33701aa1b0d4e96be66b.jpeg

 

... what now to go higher ??

Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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REALLY looking forward to this!  I gave my son my m18x R2 about 2 years ago, and now I have it all apart for upgrades, ALTHOUGH I already had upgraded to the 3940 about 6-7 years ago.  But now I have 1800mhz ram coming, newest wifi card w/Bluetooth 5, an RTX 3000 (replace his 680m sli setup) and hopefully the mxm to nvme adapter soon.  So to now have a good basis for his overclocks on the 3940xm will be fantastic to finish the project!!  (All so he can play fortnight lol).

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3 hours ago, emcze said:

System is stable. Temps are stable. Can I go higher with clock ?? If yes, please tell me what else I should change in BIOS.

You can increase the multipliers further until the system becomes unstable, at which point you will need to increase the Flex VID Override (this is an increase in CPU voltage). Personally, everything works stably for me on 46, 46, 46, 46 and 44 Flex VID Override, and on 42 Flex VID Override everything is also stable. But I have a couple of games where it crashes after about an hour. So, I set it a little larger for maximum stability. I'm using a dual heatsink and Gelid GC-Extreme thermal paste, but want to switch to liquid metal. Since the temperatures in the stress tests are high, I even temporarily lowered all the multipliers to 45 and Flex VID Override to 39, since the thermal paste lost a little of its properties in just two weeks. It's time to change it to liquid metal or stay at 44 or 45 and replace it with new thermal paste. When I change to liquid metal, I might even try to use 47 multipliers on an ongoing basis.

 

But you may have slightly better or slightly worse overclocking results, since all processors are different and there are better ones. And you have a 3940XM, and I have a 3920XM.

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Alienware M18x R2: i7-3920XM @4.7 GHz / 24GB DDR3-1866 /  Quadro P4000 Oc`d

upgraded from: Tesla M6 Oc`d

Alienware M18x R2: i7-3720QM / 16GB DDR3L-1600 /  Quadro M3000M

Alienware 17 R1: i7-4710MQ / 16GB DDR3L-1600 /  Quadro M3000M

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4 minutes ago, Maks0098 said:

I'm using a dual heatsink and Gelid GC-Extreme thermal paste, but want to switch to liquid metal.

And I don't know if it's worth doing. because the radiator can go bad, right?

Alienware M18x R2: i7-3920XM @4.7 GHz / 24GB DDR3-1866 /  Quadro P4000 Oc`d

upgraded from: Tesla M6 Oc`d

Alienware M18x R2: i7-3720QM / 16GB DDR3L-1600 /  Quadro M3000M

Alienware 17 R1: i7-4710MQ / 16GB DDR3L-1600 /  Quadro M3000M

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3 hours ago, emcze said:

 

image.thumb.jpeg.01c207db308a949ad943ad5412a5c5d8.jpeg

And I also noticed that you do not have a copper radiator. since this is a homemade 3-pipe, but I seem to have seen somewhere that it is a couple of degrees steeper than my two-pipe, even though it has a copper radiator (I attach a photo of mine). there you can see that one tube is made of steel, and two tubes are made of copper. yours is also steel.

photo_2024-06-13_17-10-46.thumb.jpg.f069404778a9392afae33246583a0756.jpg

Alienware M18x R2: i7-3920XM @4.7 GHz / 24GB DDR3-1866 /  Quadro P4000 Oc`d

upgraded from: Tesla M6 Oc`d

Alienware M18x R2: i7-3720QM / 16GB DDR3L-1600 /  Quadro M3000M

Alienware 17 R1: i7-4710MQ / 16GB DDR3L-1600 /  Quadro M3000M

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1 hour ago, Maks0098 said:

And I don't know if it's worth doing. because the radiator can go bad, right?

 

You don't need to afraid about radiator. I used liquid metal on other systems and copper radiator is still in good condition.

 

Look at this:

 

I done the same like on this video in 16:45 - after one month clean everything and put ne layer of liquid metal.

 

The same liquid metal I will use on RTX3000.

 

2 hours ago, Maks0098 said:

You can increase the multipliers further until the system becomes unstable, at which point you will need to increase the Flex VID Override (this is an increase in CPU voltage).

 

Thank you, I will try it. System works stable with ratio 45 but at 46 and higher is windows blue screen on start. 

 

Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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6 hours ago, emcze said:

System works stable with ratio 45 but at 46 and higher is windows blue screen on start. 

 

this is extremely low, did you definitely increase the Flex VID Override manually or did you try to get the most out of the standard Level 3 Flex VID Override? and what is your flex vid override at level 3? 25? and by the way, Flex VID Override does not set values greater than 50.

Alienware M18x R2: i7-3920XM @4.7 GHz / 24GB DDR3-1866 /  Quadro P4000 Oc`d

upgraded from: Tesla M6 Oc`d

Alienware M18x R2: i7-3720QM / 16GB DDR3L-1600 /  Quadro M3000M

Alienware 17 R1: i7-4710MQ / 16GB DDR3L-1600 /  Quadro M3000M

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13 hours ago, Maks0098 said:

this is extremely low, did you definitely increase the Flex VID Override manually or did you try to get the most out of the standard Level 3 Flex VID Override?

 

Standard Level 3 has 25, I put 40 and half night played "Shadow of the Tomb Rider" and "Expeditions A MudRunner Game" at 4.5 Ghz to check stability. Everything was good and stable. I try to go higher in weekend but with 4,5 Ghz I have about 30 % better benchmark result than on standard. If it is stable is enought for me.

 

I read somewhere that Alienware sold factory overclocked m18x r2. Do you know factory OC BIOS parameters ??

 

EDIT:

 

wiki says:

 

M18x-R2 (discontinued) – 2012 revision of the M18x; originally shipped with Intel Sandy Bridge processors, later shipped with updated with Intel Ivy Bridge processors, single or dual Nvidia GeForce 600 series GPU(s), single or dual AMD Radeon HD 7970M Radeon HD 7000 series GPU(s), up to 32 GB of DDR3-1600 MHz, and optional factory overclock.

Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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57 minutes ago, emcze said:

and optional factory overclock.

isn't this what we call Level 1, 2, 3?

Alienware M18x R2: i7-3920XM @4.7 GHz / 24GB DDR3-1866 /  Quadro P4000 Oc`d

upgraded from: Tesla M6 Oc`d

Alienware M18x R2: i7-3720QM / 16GB DDR3L-1600 /  Quadro M3000M

Alienware 17 R1: i7-4710MQ / 16GB DDR3L-1600 /  Quadro M3000M

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17 minutes ago, Maks0098 said:

isn't this what we call Level 1, 2, 3?

 

Yes. You have right.

 

I found some test with photo of BIOS Level 1, 2 ,3 and description :

"OVERCLOCKING:

Normally I wouldn't write about this in a notebook review, but the M18x deserves special mention given it's key overclocking ability. The system BIOS shipped from Dell provides multiple options for CPU overclocking...

... On the CPU side, you can see from the image shown that there are three preset performance bins available for boosting CPU frequencies. Dell's factory OC on the 3920XM takes it up one bin to 4.1GHz (single core)"

 

Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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I cheched 3DMark FireStrike and had about 72C temp on CPU overclocked to 4,5Ghz ( 5192 on HD7970M 🙂 ). I can use laptop on my legs. My Alienware 14 goes much higher with temps.

 

I think that it is good result compared to this:

  

On 2/5/2024 at 12:36 AM, ssj92 said:

I use 4.1Ghz 24/7 clocks without any voltage on 3920XM. I can go as high as 4.7Ghz but that requires lots of voltage and a fan under the laptop. 

 

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Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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On 6/13/2024 at 6:35 PM, emcze said:

I done the same like on this video in 16:45 - after one month clean everything and put ne layer of liquid metal.

and forgot to ask, what kind of liquid metal did you use? what company?

 

EDIT:

Sorry, I didn’t see it in the photo at the very beginning and a little later you said that Conductonaut

Edited by Maks0098

Alienware M18x R2: i7-3920XM @4.7 GHz / 24GB DDR3-1866 /  Quadro P4000 Oc`d

upgraded from: Tesla M6 Oc`d

Alienware M18x R2: i7-3720QM / 16GB DDR3L-1600 /  Quadro M3000M

Alienware 17 R1: i7-4710MQ / 16GB DDR3L-1600 /  Quadro M3000M

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11 hours ago, Maks0098 said:

Conductonaut

 

Yes, Thermal Grizzly with TG Shield - red varnish for protection against short circuits for CPU and GPU pins and smd elements ( but I used Conductonaut few times and always stay in place ). 

Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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3 hours ago, CircleLoading said:

thats way too much liquid metal on cpu...

 

This drop from third photo was aplied on both side - CPU and radiator and some part from it stayed on plastic aplicator. 

It is like it should be. I can show you foto after removed radiator, before I put new layer. 

Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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  • 2 weeks later...

Care to share the screenshots of you bios setting for OC?  I assume you are also using unlocked bios.  I am a little bit lost on where the OC stuff is.  I have 1866mhz mem and 3940, so I’d like to do some OC’ing of them but still keep it on the stable side.  Any help is greatly appreciated!

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8 hours ago, jonv8944s said:

Care to share the screenshots of you bios setting for OC?

 

I use this for CPU. It is my daily setup. 

 

image.thumb.jpeg.e38acfb2444b3a1c88d8f91217dc4fdd.jpeg

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Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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17 minutes ago, jonv8944s said:

Some setting below your screenshot you aren’t showing

No.

 

15 minutes ago, jonv8944s said:

Also any memory clock settings?

 

wait for new memory and start to overclock. Now is standard.

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Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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23 hours ago, jonv8944s said:

screenshot

 Your system is stable on 4.2. Try go higher with flex vid override. You have standard 25, I have 33, you can go over 40 but with higher temp because it is voltage. 

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Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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  • 2 weeks later...
On 7/1/2024 at 4:20 PM, emcze said:

I have 33

 

I still work and play with CPU overclocked to 4,5 ghz. It's my daily settings but... I rised flex vid override to 37 because in few programs where I need more CPU power (as 3DMark in physics test ) my system somethimes had blue screen. Now is few degrees warmer but always stable. 

 

OC is not 5 minutes proces, it takes long time to finish with stable unit.

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Alienware M18X R2 - i7-3940XM@4.5Ghz - Quadro RTX 3000

Alienware M17X R4 - i7-3740QM - K 4100

Alienware M17X R4 - i7-3610QM - GTX 680 120Hz 3D

 

 

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