nVIDIA mobile Kepler 6xx MASTER overclocking guide. Workaround for max clocks/OC stability.

just love my clevo w170er my gt650m max at 1200/2900
total stabil at 1160/2800 furmark temp 81 and boost using TS on my i7
giving p32xx 3dmark11 scores everytime.
using 306.25 driver now no differense from beta 304.xx
Thanks to all the people making this possible.
:thumbsup:

 

mic, you might want to check the BIOS mod available for the W170ER

 

allready on prema 1.3

beta tester for the w170er

 

Good to hear that you have it, enjoy your machine then!

 

sry but can u help me
i have a serious problem with my retina macbook
the core clock is very low when i'm doing nothing which is ok but it never rise even when i play game
the clock always stay at 225
i am using nvidia newest driver
what do i have to do
i am new to this kind of stuff so sorry if it bother u
i want to overclock after fixing this but right now nothing i do could change the low clock

 

I need some help usally im ok with some computer stuff but get stuck when it comes to cmd. I have a 650m ddr3 so i'm supposed to forcepstate:0,5. What exactly do i type into cmd to apply this?

 

This is a problem with the latest EFI. Lots of people are getting it. Just reset the SMC and you should find your performance goes back to normal.
Instructions:
Intel-based Macs: Resetting the System Management Controller (SMC)

 

Reread tutorials again, the 0.5 pstate is not guaranteed to work with all 650M. What you want to do is ask people with N5/76VZ and W110ER's

 

Hi

First of all hello to everybody.

I used this guide and your help to put my Clevo W150ERM 650M to 1150/2800.

I got these clocks because they were your more stable clocks and it works perfect with the 3dmark 11

Also I can confirm you don't need to force 0,5 to have full overclocking core and memory. You only have to use pstate 0,0.

You can see it opening GPU-Z and click on sensors. If you use nvidiaInspector.exe -setGpuClock:0,2,1150 -setMemoryClock:0,2,2800 -forcepstate:0,0 you will see in gpu z that your clocks are 1150 and 2800 without doing anything else. free to overclock.

With this I got 2987 in 3d Mark 11. (problem with TS as I will tell you).

But I have a problem with TS. I uncheck BD Prochot but my cpu only works with multiplier 23x. I also put clock modulation and chipset clock to 100% and set multiplier to turbo but all unchecked. Still 23x.

When I check multiplier in Turbo I only get 27x and fluctuating. It doesn't seem to be stable, sometimes 27, sometimes 28-30, never fixed. After 3dmark 11 only 3031 and cpu high temps 90º C in 2 cores.

do you know what happens? thanks in advance

 

1150MHz? that's really high.

Did you test the machine only by 3DM11? If so, I suggest trying a DX11 game for 20-30 minutes (BF3, crysis 2, metro 2033, etc)



You might want to ask unclewebb about Tstop, I have all of my checkboxes unticked and only the multiplier locked (ticked)

 

Thanks. I have tried to check the multiplier locked in Turbo and finally it works (I thought it has to be put only in Turbo but not checked because I thought too that the clock will be fixed in turbo and this doesn't happen, it goes from 2,0-2,3 to 3,1-3,3).

I will see the temperatures , if the cpu goes to 90 degrees I prefer to overclock only the gpu and the i7 only at 2,5-2,6ghz max).

I have seen that my 3dmark is about 3000 at 2,3 or 3,1ghz. when I unlocked bd prochot I got the big jump between 2280 in 3dmark 11 to those +-3000 but with the multiplier I am not getting more points in 3dmark. I don't know why.

If anybody can explain it to me......

 

Hello everyone, I'm 100% new to overclocking as I just got my first laptop (been using old ones, meaning I'd always play games at lowest settings).

Could anyone explain to me the advantages of going through this (which I am actually very much eager to ^^) as opposed to using programs like MSI Afterburner and such?

 

Hi, i have nvidia GT 640M on my Lenovo Z480, I want to overclock this card to clock like GT 650M, i think thats very possible because its same chip based on GTX 660M, but I hit the limitation on both MSI afterburner and nvidia inspector

anyone can tell me how to pass this core limitation ?,
i can overclock more on memory, but my memory cannot pass 1120 MHz thats start artifacts if i pass this
and another question, why gpu boost is not worked ?

Thanks for your reply

 

The BD prochot have to be disabled. The i7 3xxx's are rated up to 105c, so 90c is still safe.

Maybe that's the max 3DMark score that the laptop can produce? /: I don't have a 650M myself, so I can't confirm

Hello Rosbife, I wrote this thread so people who doesn't want mod their BIOS to remove the +135MHz OC limit implemented on mobile kepler cards. May I ask, what card do you own?

Fidelis, what Pstate did you use for the 640M?

If your memory maxes at that frequency, then it's the MAX frequency that the vRAM can push. Sorry for the disappointment

 

i use performance level 1 (P0), yeah, i know my memory has reached the limit, but what I want to ask is how to pass the gpu core limit not memory, thanks..

oh yeah, now i understand i must force p state 8 and overclock on performance level 0 (P8)

I try to force it to pstate 8 and overclock the core to 810 and mem 1120, run furmark and all running normally, now benchmark with 3d mark 2011, i see my score i lower than 759 core, so i try to investigate the gpu-z log, i see the v core is drop from 1.00v on P0 to 0.85 on P8, and the temperature is very cold only 64 degree celcius compare to 759 core clock and 1.0v vcore with 76 degree celcius, any one can tell me where i am wrong ?

 

I own a 2GB DDR3 GT650M (Asus N56VZ). I have a few doubts regarding OCing my GPU because the memory isn't GDDR5 and, not being a gaming laptop, it does get rather warm. The highest temps I've checked were about 85, perhaps up to 90, while gaming, but generally around 75-85. But then again I'm a complete newb at OCing, been investigating about it for the past few days. Any help besides the guide, which I immensely thank you for, is appreciated

 

My 3610QM throttles at 95C..

 

Great to know that the 640M can use the P8 state!

You might want to investigate if P8 uses a lower volt, since 1v vs 0.85v is a lot of difference. Oh, and lower volts usually means better temps.

It means that if you're using P8, you're undervolting the card but also overclocking it at the same time.

See if you can use the 1v pstate and overclock beyond +135MHz

The memory would hold back the GPU core, but I would just try and max everything to get the best performance. Any temps that still fall below the specified max threshold by Nvidia and Intel is fine

It's rated up to 105c but It doesn't mean that it only throttles at 105c /:

 

haha, my 3612QM at 93C

yeah, the temperature is very better, but not with performance , that make i counfused is why my card only have 2 Pstate ?, P0 and P8, i dont have middle P state (P1,P2,P5), on P8 i can overclock the card, but i cannot adjust anything about v core

 

Let's see what Pstate you have on the pop down toolbar, test a furmark run with every one on stock clocks and monitor the volt.

 

yes, I've seen my pstate, this is the pict

 

/: didn't expected that, I'll try looking for a BIOS mod to remove the +135MHz on normal voltages

for now, just undervolt and overclock using P8


btw, can you attach the most recent BIOS update for your lenovo model?

 

thank's for your help , i found overclock on P8 doesn't have good effect, 810MHz on P8 (0.85v vcore) has more bad 3d mark 2011 score than 759MHz on P0 (0.95-1.0v vcore), and until now lenovo doesn't provide any bios update on their support website for my lenovo Z480 model

 

Can you attach your BIOS file? /:

 

yes of course if you tell me how to dump my bios

 

._.
I'll go over to Tech Inferno and I'll see if anybody manages to unlock the Z/Y480 BIOS

The card might be throttled on P8 because it didn't receiver enough volts

 

thank you very much, but Z480 and Y480 has a different bios, because Y480 has a msata slot and the bios support intel rapid boot

 

P8 is idle state and don't believe it can run at full voltage. If you only have the two states then you're stuck. I think the P5/P2 states (whichever) are also limited in voltage compared with full P0 state.

 

Alright, I will look for it but I'm not promising anything.

 

ok i will wait :thumbsup:

yeah, on P8 with 0.85volt vcore with 810 MHz core clock and 1260MHz memory clock i got 2080 P score, but in P0 with 0.965-1volt vcore (its dynamically adjust) with 759 core clock and 1180 MHz memory clock i got 2130 P score, i clock down the memory because its not stable with P0 voltage

 

Hey, just wanted to say thank you for the great write-up the inclusion of the bat files made my life much easier when tinkering with my 650m.

I was hoping someone could explain or point me in the right direction to a writeup that explains what all the settings mean. I'd like to further understand all the flags that are associated with the bat file. What I'm getting at is what exactly do all the values mean after each of the flags?

nvidiaInspector.exe -setBaseClockOffset:0,0,135 -setMemoryClockOffset:0,0,500 -setpowertarget:0,111 -setVoltageOffset:0,0,187500 -setGpuClock:0,2,1311 -setMemoryClock:0,2,3500 -forcepstate:0,2

 

Just wondering, what BIOS brand do you have?

If I want to overclock +140MHz to the core and 510MHz to the memory

nvidiaInspector.exe -setBaseClockOffset:0,0, 140 -setMemoryClockOffset:0,0, 510 -setpowertarget:0,111 -setVoltageOffset:0,0,0 -setGpuClock:0,2,(default bios core clock+140) -setMemoryClock:0,2,(default bios vram clock+510) -forcepstate:0,2


Power target/voltage adjustments does not apply to mobile 6xx series. You don't have to worry about it

 

Mobius 1, thank you for the reply... if you don't mind I'd like to dig a little deeper.

With the 650m I can exclude the -setpowertarget and -setvoltageoffset flags, understood.

Next questions...

First what values do the bolded text below represent?

nvidiaInspector.exe -setBaseClockOffset: 0,0,140 -setMemoryClockOffset: 0,0,510 -setGpuClock:0,2 -setMemoryClock:0,2 -forcepstate:0,2

I'm guessing that the "0,2" after GpuClock and MemoryClock represent the pstate these new values will be applied to, is that correct?

Lastly, NvidiaInspector shows the following for me: Performace Level [0] - (P8) / Performace Level [1] - (P5) / Performace Level [2] - (P0). If I'm understanding all this correctly and pardon my ignorance I'm new to this... PL [0] / (P8) is idle clock, PL [1] / (P5) is default mode, and PL [2] / (P0) is under load?

Thanks again for all the clarifications it seems difficult to find solid information on the topic. Most of what I can find is basic and not very descriptive.

 

Not sure I'm following. So if I use MSI AB, there is a +135MHz OC limit, for as long as I don't mod my BIOS? (GT650m)

 

From what I've seen from most 650M owners 0,1 is the command to get to the P2 state (load)

However, this is used in the DDR5 version, your ASUS N5/76VZ is a DDR3 model and might require a different value to override P2

You do have the +135MHz limitation on AB, with this tutorial you can unlock it without using a BIOS mod

 

Just for reference I have a hp dv6-7014nr which has DDR5.

Thanks for the information, I will continue to play with it until i'm satisfied with my results.

 

Hey Mobius I have an Alienware m14x r2 with a 1gb ddr5 gt 650m and i can't get it into the p0 state. I've tried nvidiaInspector.exe -forcepstate:0,2, nvidiaInspector.exe -forcepstate:0,1, and nvidiaInspector.exe -forcepstate:0,5. any ideas? only p8, p5, and p2 show up in nvidia inspector.

 

Thanks will give this a try over the weekend, still learning the ropes...

However just one last question for now. My laptop (a ddr3 vram asus n56vz) is not a gaming one and it does get rather warm. With no OC I registered 86º C / 93º C for the GPU and CPU respectively over an hour of Skyrim.
Does the 86 seem too high to you to be overclocking it much? I know each card OCs differently, and I'll go with small adjustments for stability, but was just wondering before I got started. I've also heard the GT650M has a good range for OCing the core clock without increasing heat. Would make sense since the 650 and 660 seem to be the same card with different clocks, but if NVidia brands them according to quality after the battery of tests... then it might be different.

Thanks in advance!

 

Those temps are awfully high for just playing Skyrim and wouldn't even consider overclocking at those temps. If I were you and are handy at repairing PC's, I'd change your thermal paste (may void warranty) and use compressed air on your fan intakes to get dust out of there. But then again, Asus laptops don't always have to best cooling except for their actual "gaming" laptops. But the 650m is a cool running GPU and have never seen one reach 86C. Not trying to scare you, but either the cooling system sucks, you have a lot of dust on the fans, or it just needs a good repasting of the CPU and GPU. Chances are that system has a single fan to cool both CPU and GPU.

 

You might want to ask other 14x owners, because I'm not really sure if the 14x requires a different 0,x value

Check Tech Inferno, they have a custom M14x unlocked BIOS there

Their cooling system is decent, but what crippled the laptop's OC ability is the thermal paste they use (cmiiw, head it from Hopelesslyfaithful)

The ASUS N5/76VZ does use a single fan system. And the fan intake is nonexistent (maybe it sucks air from the keyboard?

 

dont worry, gt650m rated upto 98 degree celcius GeForce GTX 650 | Specifications | GeForce , I took from the GTX 650 because they have same chip

 

They do seem quite high, which is why I was asking in the first place. I'll try and get to know if it would void my warranty, I have no issues with opening the laptop up and tweaking around. I don't have any dust on my fans (or should I say "fan" :s)as the computer is almost brand new; however, what do you mean you've never seen a GT 650M reach 86? It's not uncommon. Take a quick look here:

AnandTech - Samsung Series 7 NP700Z7C Review

This is just one of many GT 650M-equipped reviews I have archived, and the GPU temps are basically plateau-ing at 90ºC, standard clocks. Also, I've seen quite a few times people saying that, due to the chip itself and the lowered core clocks, the 650M can actually be OCed quite a bit without raising the heat. Still haven't tested mine yet though

Meh, goes to show. I did suspect its heat management kinda sucked, now I know exactly why.

Thanks everyone for the input, I have another doubt then:

Would a cooling pad help significantly? Never used one.

Cheers!

 

Just because the max temp is 98C, doesn't mean you run it to that temp. It's like driving your car with the coolant near max temperature. It can cause premature wear or failure. I don't want to alarm anyone because people have run their systems at high temps for years without any problems, but it's just higher likelihood that something will go wrong, or better yet an indication that something isn't right.

 

You're 100% right, that's why I was asking these questions before OCing. I'll get in contact with Asus and check if about the warranty and if these temps are normal. I just really don't wand to have my laptop sent for repair, as Asus takes aaaages to do anything about it... I'm using RealTemp, btw, the readings could be wrong (usually read about huge disparities between programs)

Do you know anything about the effectiveness of cooling pads, though?

 

Since the fan does not have it's own vent, no. I have tested my coolermaster U3+my asus with a 120mm INDUSTRIAL fan as the cooler and it didn't lower temps at all
You can use R/W editor to manually set the fan to maxspeed though

Get some ICD and repaste it yourself, ASUS will take at least a week to do it with the same crap paste

 

I have got a Dell inspiron 14r with gt 640m (stock: 625Mhz+83[boost] core and 900Mhz Mem clocks), been trying out OCing according to your guide but like fidfidelis97 noted only 2 P-states are available, so i have been experimenting and here are my findings:

1. P8 state for idle ( gpu undervolted , low performance ) gpu downclocks to 120Mhz by default

2. P0 state for high performance -> we can change the boost clocks from 708Mhz (default) to 843Mhz (708 + 135) using nvidia_inspector.
This method is very stable but will work only temporarily i.e till reboot.
Once you reboot the GPU clocks get locked and boost gets disabled i.e clocks remain stuck at 625Mhz no tuning possible.
The only way i have found to re-enable boost is to reflash the bios.

Interestingly the memory overclocks can be made persistent, but gpu clocks get locked. Has Dell fiddled with the bios to make it difficult to overclock, because i can see that the gpu has very good untapped capability (63 degC at 843Mhz after 2 hrs of Borderlands 2). I would be very grateful if anyone can anyone help me mod the bios.

Link to the bios: http://downloads.dell.com/FOLDER00541107M/1/7420_A03.exe
note: it is an exe which launches the flash tool - do not run it !! Don't know how to extract the bios from it.

 

Thanks, was going to take my laptop to a store and actually trying it out there but no need then I guess I'll get the paste instead for now. Will report back!

 

i have lenovo BIOS brand (17AA) version 80.07.22.00.12

 

yeah i know, but thats still have 12 celcius until reach max temp, so don't worry

 

I can confirm this works on a Lenovo Y580 using Nvidia Inspector and a .bat file pointing to nvidiainspector with the nvidiaInspector.exe -forcepstate:0,5
The Trick is, you have to install Lenovo's Energy Management software and enable Dynamic Graphics Mode before any of the changes to P5 Will take effect.
I Have my 660m set at 1100 Core/2600 Mem. If you set it to any other Power plan it seems to Not want to use the boost technology.