I´ve solution it. Sorry for my english.
I supose that was a trouble with the DVDRom, I´ve just create an USB with the Snow Leopard Retail and works fine.
First start with the Mod CD and with the USB don´t have to swap CD/DVD
Now I´m trying to set the drivers.
Someone knows a driver for ATI Radeon HD4290?
Thanks for the reply
Hi, i've followed de guide but really stucks in the installation screen.
You can see it in the attached image
ModCD 032311
Snow Leopard 10.6
AMD 1090T
Asus M4a89GTDPro USB3
8GB 1333
WD 160GB SATAII