Snow Leopard on nForce7

[Nexos™]

Hi i try to boot snow leopard on my XFX nForce 790i Ultra SLI (MB-N790-IUL9)

 

(at first sorry for my bad englisch. I'm Ger)

 

CPU: Intel Core 2 Duo E8600 3.33 GHZ

Chipset: nForce7 (based on nForce5)

RAM: 4GB DDR3 1666MHz (2 Modules)

GPU: nVidia Geforce 285 GTX

HDD: 160 GB sATA

 

i use fakesmc kext + nullcpupowermanagement kext

all is ok but after boot, the monitor is black and then he got no signal

 

i created 3 partitions on my USB Pen Drive

1. chameleon

2. SnowInstall Disc

3. Datas

 

i had create dsdt.aml on Leopard without custom efi Strings

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i tryed to use an old nforce kext by meDevil

but it does not help (black screen - no signal)

 

i tryed to install nvidia graphic drivers

but it does not help too (black screen - no signal)

 

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at least i tryed to install snow Leopard from leopard on Portable USB Harddisk drive

but it does not works (black screen - no signal)