ASUS G75 ROG modding, tuning, clocks, temps etc.

Hi guys,

I will keep the first post up to date with my progress.

Stock Temps
Furmark, GPU: 65°C maximum after 10 minutes
Prime95, CPU: 78°C maximum after 10 minutes

There is a problem that needs to be solved first: We need to get the VBIOS for changing any values. But I can not save it with NVFlash for my 660M.
Can anybody try to save the VBIOS? Then we could submit it to the Developers of NiBitor. I talked to them and they need a VBIOS of a 660M to to make NiBitor work with it.
But my skill ends on the "use modding-tools-level"

Does anybody know if the VBIOS is integrated in the normal BIOS? I can not imagine that...

Trying to save the VBIOS results in a EEPROM error:
EEPROM ID (20,00FF) : Unknown
Error: Supported EEPROM not found.

But the chip is recognized by the newest NVFlash-Version (5.118). Older Versions did not even recognize it.

Any hints, ideas, input appreciated!!

 

Hey, I found something that looks like a vbios of the 660M inside the G75 BIOS from the ASUS site. I'm going to extract it using MMTool and upload it here. On MMTool it says Link ID: 10de,fd4 (should be 10de,0fd4 but the 0 ain't displayed). The vbios size is 87kb, larger than the Fermi ones.

Can you ask those who are on MKVTech to confirm if this is the real thing? If this thing is real, you might have to replace the 660M vbios inside the bios with the modded vbios using MMTool or something else and reflash the bios using ezflash or aflash2 everytime you plan to do something with the vbios. (Yea it's scary, especially the ezflash)

View attachment gtx660m.zip

 

Thank you! Lets see if it helps them. I've sent it to them and I will post here when I got an answer.

[Edit]: I've got the Information, that overclocking Kepler Chips is work in progress. Coolbits does not work with Kepler-Chips. No termination known yet.

 

I tried to check both the GTX 670M and GTX 660M vbios from the G75 bios using nvflash
, both seem to run into I/O ERROR: Cannot open file: [filename.rom]

Oh well.

Edit: Nevermind it was foolish of me . Both the 660M and 670M vbios read. I forgot to add .rom as they all came out without a file extension after extracted LOL.

 

[Edit]: What? Did it work? How did you do it??

Hm, does NiBitor work with the G73JW?
Ive got a G73JH and it was possible to make changes to it. Best thing: There was a Windows tool to easily access, change and flash it... But this was ATI.

If NiBitor works with the G73JW then the VBIOS in BIOS is no reason why it should not be supported.

Maybe we need a newer NVFlash version. It is a NVIDIA tool that is not officially released and that needs to "leak". Maybe the actual version is not compatible.
I dont think that it is a problem in general with Kepler GPUs as other Kepler work with NVFlash.

So we need to somehow extract the VBIOS correctly out of the BIOS.
I have never used MMTool before. I tried RW-Everything. But as I have no experience in extracting the content of flashable chips without redy-to-go tools.... i doubt that what i got is something usable hehe...

I've attached what I got...

 

Well I got it wrong at first LOL. Yes the nibitor works with G73JW's 460M, not the 660M yet tho. Is the vbios you attached the modded version of the 660M? Oh by the meaning of it worked, it's just that the nvflash recongnizes the 660M vbios extracted from the G75 bios, nibitor still doesn't have support for 660m yet.
Edit: Ah, I see that's from RWeverything, you are going to need a real vbios, so those won't work . Anyway, extracting the 660M vbios from G75 bios with MMtool does give you the correct vbios you needed.

 

So you can save the VBIOS to a file??

No, my attached file is nothing modified. I dont even know what it is. It is something I got with RW-Everything. Just saved it and sent it also to the Nibitor guys so they can decide if it is something useful.

 

AAAHH... haha.. edit everywhere...
So just to make it clear: The file you attached first (is the file i sent to the Nibitor developers) is definitely the correct VBIOS, right?
Is it easy to extract with MMtool? How did you do it?

 

Haha true edit everywhere . Yes the first vbios I attached is the real vbios of the 660M, I've checked it with nvflash and it reads the vbios.


In the MMTool you can see the attached optional rom, 660M(10de,fd4) is in one of those.


Hope this clears things up

 

ok, so does NVFlash work with the 660M? Because it says 675M in your screenshot. What was your comand for extraction? Or did you extract it with MMTool?

 

I extracted it with MMTool.

As you have confirmed it doesn't read the EEPROM in the 1st post, I guess that's a NO. And in the first picture I uploaded, I was just checking if the nvflash reads the 660M vbios I extracted from the G75 bios. Mine is a GTX 675M but can still check if the vbios is correct that way .

 

ah, now i got it.
So lets wait for the answer from the Nbitor guys.

 

Post it under the NVIDIA GeForce BIOS section on MVKtech.net tho, usually quicker to get help there. What are you trying to do? Overvolting?

 

I've posted it.
No, I want to undervolt, so the fan does not need to run. I think I can get it run silent. SSD is already installed. When my WiFi-card (dualband) and the RAM arrives, i will disassemble and repaste once it is open (as I did with the G73).

I want to undervolt the lower powerstates, maybe downclocking, too. So there wont be so much heat in 2D mode but the normal power in 3D mode.

Some numbers: The temperature of the GPU with stock paste: Idle 36°C - 41°C (fan cools it down once a minute after running for some time)

The temperature of the CPU is 33°C - 42°C but behaves very "strange". Im using CoreTemp to check. The temps "jump around" in the told range until they hit 41°C and then the cooler turns on.

The jumping around temps might be bad pasting. The i7 seems to be a cool running CPU though.

 

It seem like the temp set for the low fan profile in G75 is a little low, on the P150EM I have, the fan doesn't start spinning until it hits 43C. On mine I can turn the dGPU off with Optimus and it'll stay at 30C so the dGPU fan won't spin unless an application starts using the dGPU (including turning on the gpu monitor).
On the G75 the dGPU is always in use that's why you are seeing that the fan starts spinning and turn off then repeat again like every min when idle, not sure if undervolting the idle state can keep it lower than 42C during idle without the fan spinning tho.
CPU might be the same but so far no ASUS notebook users have managed to undervolt the i series CPU yet.

 

Yeah, I know. I'm thinking of repasting first.
The "problem" is, that I cant find any notebook with silent fans like the asus fans and such a performance...

 

By the way are the rams you ordered XMP? Might be worth a look if the G75 supports XMP rams, as I can't find any string on the G75 bios saying "enable XMP" it might be enabled by default

 

Now that you are asking... I can not find the Kit on the Corsair Page. But this is the productnumber: CMSX16GX3M2A1600C10

 

Looks like it has XMP profiles in it

http://www.corsair.com/en/memory-by-product-family/vengeance/vengeance-4gb-high-performance-sodimm-memory-upgrade-kit-cmsx4gx3m1a1600c9.html

Let us know if it stay at 1600

 

It is not the 4GB kit
It is a kit with 2 x 8GB Sticks. I dont know if the specs are the same. I guess so, but not sure.

 

It should be the same. I checked the other versions of the vegeance rams they all have XMP on them.

 

I will report.
Im wondering that we are the only guys talking here about modding the G75... is there more talk in other forums?

 

Well I'm sure more will come once we get some results out .

 

The parts arrived. But i forgot something... once i disassemble it, i could also get some thermal pads for the graphics-ram. any suggestions??

 

I used 0.5mm pads for the G73JW, not sure if the G75 is still the same tho.

 

I've ordered these Phobya thermal pads XT 7W/mk in 3 different thicknesses (can i say "thicknesses"? sounds funny ). So i am prepared for any gap between the chips and the heatsink.
Reviews said that the 7W/mk have got the best conductivity compared to the other Phobya pads. But I did not find many pads and even less reviews...
Will report.

 

7W/mk for 0.5mm is like one of the best you can get, but for 1.0mm you'll want 12W/mk, they were once on Ebay last year, I can't find it now .

 

I dont think that it will be more than 0,5mm. I couldnt find the 12W/mk either. that big difference?

 

7W/mk at 0.5mm will beat the 12W/mk at 1.0mm by little, so not very different in conductivity. If you look at them from a perspective of the same thickness, normally higher W/mk results in tougher material. The thickness of the pads will greatly affect the amount of the heat that can be transfered. The ones I replaced the G73JW's pads with were 6W/mk @0.5mm, the conductivity should be the same as the 12W/mk @1.0mm. I'm sure your 7W/mk @0.5mm will bring a better result.

 

Ok, now I have time to start the whole thing.
Lets begin with some facts:

Stock Temps
Furmark, GPU: 65°C maximum after 10 minutes
Prime95, CPU: 78°C maximum after 10 minutes

Any other temps? Lets compare!

 

Did svl7 manage to undervolt the 660M vbios?

 

he wrote that he will test things out when he gets a mobile kepler card. should be possible.

 

Ok, first I will look for some temps. Seems like my GPU runs very cool. It would be very nice if other guys posted their temps under furmark here.

 

Stock G75-BBK5. All test ran for 20 minutes concurrently. Monitoring with HWiNFO64.

Ambient room temp is ~25 degrees C.

FurMark setting: 1920x1080 windowed, Anti-aliasing 8X MSAA
Max GPU temp: 70 degrees C
Max GPU fan speed: 3455 RPM

Prime95 stress test
Max CPU temp on any core: 83 degrees C
Max CPU fan speed: 3422 RPM

 

At the moment it seems like I really have a very well pasted notebook

Found this one as well: What are your stress-test max GPU & CPU temperatures and fan speeds?

Beside: If someone want to try something: Remove the dustfilter on both sides and make another try... maybe this makes the difference. I dont have them in.

And if nobody comes with lower temps than mine i do not dare to repaste mine Notebook heatpipes are quite crappy, especially the asus ones. uneven, unpolished... lets wait and see...

 

I have the exact same temps as you OlMightyGreek. I did not re-paste or anything, just stock in everything as out of the box.

 

Does 660M throttle when running Furmark? My GTX680M throttles only in Furmark, same is a kepler gpu as the 660M.

 

im on vacation. will check when im back in 2 weeks.

 

Checked it. Sorry, quite late...
Screenshot does not work. Dont know why. But it says:
GPU Core: 950 MHz (THROTTLING: -815 MHz)
But I cant imagine that it throttles from the beginning... and not at 70°C And not even at yout 76°C...

 

It's probably kepler gpu's feature, anti-burning?

 

Or maybe a wrong value. I thought that 950 was the clock when "boosted" and 815 the standart one....

Any news on the VBIOS? There is a new version of it. Could you extract the new vbios so we can submit it to the nibitor guys?

Greetings

 

GTX660M vbios extracted from G75VW bios version 210: View attachment gtx660m_210.zip

Checked using nvflash 118, correctly extracted.

The size is slightly larger than the 660M vbios in version 207, 88KB instead of 87KB.

I haven't been on MVKTech for a while now, but svl7 told me he has sucessfully modified Prema's 650M vbios, the OC limit is unlocked, not sure if it was OV'd.

 

hey, thanks for the work! (at least it is not only for me useful )
are you going to upload it on the mvktech forum?

am i wrong, or does it take quite longer till the community starts modding the g75 compared to the g73 e.g...?

 

I'll leave the upload job to you It shouldn't take long if it grabs svl7 or Saltius's attention (Saltius did mention he gets busy after August 2nd, well somewhere around that). svl7 has done the modding for 650M and 680M already, 660M shouldn't take long if you work with him.

 

because of only average skills on that thing i have to pass this question from svl7 to you:
"Tell me one thing, could you dump the vbios per nvflash from within DOS or is the vbios only in the BIOS and not on a separate ROM?"
I would answer "not possible via nvflash" but i have to try the new bios and i have to look for a new nvflash version...

 

Did you try nvflash 117 for DOS? 118 seems to be windows only but usually it can be dump via windows mode, but sometimes you cannot flash it back to the EEPROM in windows, only DOS. If both fails you might have to wait until the release of 119 and see if it reads the EEPROM or get it via BIOS, the BIOS 210 has mentioned change of vbios, so I assume that inserting the vbios into the bios would work when you are flashing.

 

i tried both versions. no success. any hints on when 119 will be released?
Quite annoing that since 210 the GPU-fan runs permanently. Even though the temps are low...

 

Not that I know of, I guess they also changed the fan table as well. By the way on both 117 and 118, when you use the command nvflash --list does it even list the card out?

 

as i remember, only 118 showed the card...

 

How to flash a modded bios on Asus G75?
Afudos engineering version doesn't work.
Afudos Aptio version says : file size doesn't match existing bios size.
Does anybody help me?
I need the modification, because my g75 doesn't boot with corsair 1866mhz memories.
Thanks.

Hi,
I have an unlock bios for asus g75. How can i flash? Afudos doesn't work.
Thanks.