RakaSaka

this should enable your egpu (without any glitches). try to use only mm 0001013E 1 ;PCI :8 (you might want to check if your mbp uses the same pci bus by using "PCI -i -b")

the experimental part can be skipped until working intel drivers are released as it's only purpose is to enable intel hd as primary vga device which would allow us to use optimus

Tried using that exact address, but still got stuck at the boot screen. Which string should I look for to find which device maps to what I'm looking for? I tried PCI -i -b, but don't see anything that has the string thunderbolt. There's a Seg=00, Bus=00, Dev=01, Func=01 that maps to "Bridge Device - PCI/PCI bridge, vendor 8086 Device 0155 Prog Interface 0. Is that the same as you?. I tried looking in windows device manager, but not sure which text I should be looking for either. I included an attachment

how about your 560 ti? do you have a desktop pc to test its functionality?

Yeah, between my post and now, I bought a mobo+CPU and the 560 TI works fine on the new rig

I didn't notice any performance differences in game and again i doubt your intel video card works properly in windows. what cpu and ram do you have? what games did you test? whats your 3dMark score?

These are my scores booting into windows 8 EFI w/o any .nsh scripts and through the LCD display. I checked all my video settings in Nvidia control panel and also put the power settings to high performance mode, but I still get low numbers. I have 8 GB RAM, i7 2.3 Ghz. Basically the basic MBPr

P722 3DMark '11

P3128 3DMark Vantage - NVIDIA GeForce GT 650M video card benchmark result - Intel Core i7-3615QM Processor,Apple Inc. Mac-C3EC7CD22292981F score: P3128 3DMarks

Did you guys have to do anything special to get the TH05+560TI to detect on the mbpr 15 for Win8 EFI? I thought it would be plug-and-play . I've tried the following to get windows to see it

- Startup with thunderbolt plugged in (get stuck on windows login screen circle thingy spinning)

- Boot Windows, plug-in thunderbolt, refresh in device manager (no detection)

- Upgraded to latest Nvidia + Intel drivers (note, i do see both the 650m + the intel 4000 in device manager and both are working)

- Use modified startup.nsh

# This will show a crazy RGB snowy screen on the MBPr's screen. 560 TI output never kicks in

mm 00020004 1 ;PCI :0

mm 0001013E 1 ;PCI :8

# The longer one in the "Update (experimental)" code will cause my fan to spin, but screen is always black

- Boot into OSX and plug/unplug thunderbolt cable (i see in the system see's the thunderbolt device so cable and TH05 are good)

- Tried modifying the switches on the TH05. Set SW1=3, SW2=2-3, also tried SW1=2, SW2=2-3. No luck

- Disabled the intel video card in device manager

I'm tempted to completely scrap and try Bootcamp/BIOS mode. Gaming in Win8 EFI in this mode feels incredibly slow like it's only utilizing the intel video card (LCD or external display) even though GPU-z shows my Nvidia GPU kicking in for the 650m.