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14" Lenovo T430s + GTX770@4Gbps+c-EC2 (EXP GDC V7) + Win8.1 [freddellmeister]


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Processor: Intel i7 3520M 2.9GHz (4M Cache, up to 3.60 GHz)

iGPU: Intel HD Graphics 4000

dGPU: NVIDIA NV5200

eGPU: msi NVIDIA GeForce GTX 770 2GB/OC

Guide:

1. Leave dGPU enabled in BIOS, Leave Expresscard setting to "Automatic speed" (Press F1 to enter BIOS setup)

2. Install Setup 1.30

3. Remove dGPU nvidia drivers with wonderful "Display Driver Unistaller" (Select shutdown to install new graphics card option)

4. Insert the EXP GDC v7 into the Expresscard slot (I had to flip a jumper switch on the GDC 7 to make it always start with the machine)

4. Boot into Setup 1.30 and disable dGPU (no need for any PCI compaction)

6. Boot into OS :joyous:

7. Install the latest Nvidia Desktop drivers

Good Stuff:

The MSI GTX 770/OC with a rated 230W? consumption cannot be crashed by any game/benchmark driven by using Dell DA2 so far!

The MSI GTX 770/OC fits nicely into the EXP GDC v7 metal enclosure

I used the PCIe 6+6 Graphic Power cord shipping with GDC v7, it works nicely even though the GTX adapter has 8+6 connector

if you forget to run setup 1.3/startup.bat to disable dGPU, the eGPU will be disabled and the desktop Nvidia drivers will work just as well runinng the dGPU.

Gotchas:

1. I could not make eGPU GTX coexist with dGPU (error 12)

2. If I disable dGPU in BIOS, Tolud is increased so that does not help

3, normal DSDT override compile/procedure could not create a valid table (BSOD)

4. DSDT override using black voodo magic binary patching trick described elsewhere worked but nothing was using the high mem

5. Setup 1.3 : any kind of PCI compaction disabled either the USB, Bluetooth or actual boot disk device

6. Trying to uninstall/disable the dGPU in "Windows only" does not help, eGPU will not get enough resources, USB will stop working etc.

7. For me Setup 1.3 is mandatory

GPU-z:

post-31146-14494998879931_thumb.jpg

Startup.bat:

call iport train 3

call iport dGPU off

call vidwait 60

call vidinit -d %eGPU%

call pci

:end

call chainload mbr2

Benchmark results

3dmark13-FS.gpu=6201

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