trigt60

You can not disable Optimus. Because technology Optimus is not only software in bios and drivers! Its also hardware. As you say, LCD connected only to the Intel HD4000. And its not only in MSI. It Optimus for all.

[ATTACH]10787[/ATTACH][ATTACH]10788[/ATTACH][ATTACH]10789[/ATTACH]

You are quite right on this. However,

1) Since the technology is Muxless (ie No extra Hadware required to mux LVDS signals like in Macs), when Nvidia is enabled the IGP is only used as routing to the LCD. So dont lose hope yet!

2) I noticed this on my Optimus Notebook. When Nvidia is OFF, Everest Engineer does not list it in PCI DEVICES!

When an app/game that is set to use Nvidia in executed, it is only then that the Nvidia GTX 680m appears in the Everest PCI Device listing.

3) Based on my research on ACPI tables (due to Hackintosh) in order to utilize the Nvidia card, an ACPI function is called (ON) that changes the Power state of the Nvidia card.

The technology is therefore based on OS (software) that calls ACPI table (BIOS) functions to change modes between Nvidia ON and Nvidia OFF.

4) What we are looking for is not to turn off the IGP, but to have NVIDIA always ON. Then you get unleashed Nvidia Power with the cost of Power consumption.

Based on the above, this can be accomplished either by

a -messing with DSDT (only possible for Hackintosh but not EASY at all)

b -Utilizing an incorporated BIOS feature that has the NVIDIA card ALWAYS ON. This is possible in some Optimus notebook brands but NOT for MSI BIOS.

5) if ftln's modded bios does that (the b scenario), then this will be possible (disabling Optimus dynamic switching --> dGPU always ON).

@ftln: Can u please list the available Graphics options in the modded Medion BIOS?

Quote

Here is Whitebook (untested) and Medion x6823 - MS16F3

[ATTACH]10736[/ATTACH]

Unlocked Bios, All options available (disable optimus / dGPU / Ram Speed / RAID and lots lots more) and power management patched to enable native power management on Hackintosh installs.

BLCK is in section - Advanced - Intel ICC - Div2S

Please use this bios only on compatible systems and completely at your own risk.

To bypass secure link / flash errors I always flash using cmd prompt as admin in windows -

[FONT=Verdana]afuwinx64 [/FONT]ms16f3.bin[FONT=Verdana] /gan[/FONT]

Before Flash and after Flash always reset bios to default settings F9

Enjoy and don't forget to say thanks :)

Thanks for posting this!

MSI GT60 0NE is based on MS16F3.

A couple of questions for you: 1) Have u tried it with Optimus off OR dGPU alone? Rumors have it that MSI branded models have the lcd connected only to the Intel HD4000, so when u turn Optimus off the Notebook gets #@$%#%, i.e. you cannot see anything!!! 2) I know u didnt do it yourself but I will attach the latest MSI GT60 0NE bios. Can u plz send it your friend to do the same mods he did on the Medion Bios? [ATTACH]10786[/ATTACH] 3) The reason I want Optimus OFF is to use the GTX680m in a Hackintosh machine & I ve been struggling with this issue for over a year now.....

Thanks in advance!

You can disable it yes.

Thats excellent.. For Optimus (Nvidia + HD4000) systems it has been difficult to install Mac OSX86 with graphics because of the the two cards designed to work together. If the BIOS allows one of them to be disabled, then graphics on Optimus OSX86 is an option.

Has anyone tried it?

If so, the unlocked BIOS allows for which one to be disabled?

thanx

Currently I'm not sure how to achieve this, also it's generally not a good idea. I have an old M15x and my card only hits about 70°C when overclocked and slightly overvolted... I can only advice on modifying the heatsink for more pressure on the die, or manipulating the EC to get a higher fan speed. Contact your vendor and ask for a bios with higher fan speed settings as the current one is obviously flawed.

Well usually you can use the same modified file for a long time, even with updated drivers. But you can try a modified version if you want. Do you want the stock MSI vbios modified or the tweaked one?

Thanks! The tweaked would be just fine for experimenting. PLease change dev-id to 11a2 or 11a3.

Congrats on your work!

Q: For a

MS-GT60(15.6''):

.30M

MSI GT60 Unlocked.zip

Does the unblocked BIOS let you disable the Integrated or the Discrete Graphics card?

THanx for answering

Device ID change is easy, but I'm under the impression that you only need to mod the driver to achieve what you want.

Yes thats right! But given the fact driver updates are getting released regularly I think modding device id is more convenient - a one time job. Anyway, u dont even need to flash the modded bios!! You only have to set the Chameleon bootloader to load the modded dev-id bios at boot time.

Maybe you can do this mod and let me try?

Thanx in advance

Hi there!

Remarkable job on modding bIOSes I must say.!

Q: Do you think one can mod the bios of an MSI 680m 4gb to another device ID? (ie change 11a0 to 11a2 or 11a3 for 675mx and 680mx respectively)?

Why would you want that? To trick a hackintosh into loading the drivers for a fully working QE/CI (3D accelereation). Apple supports 675mx and 680mx.

Thanx for reading...