The audio and lan are different. Most likely you would get a kernel panic. You could try iBoot and multibeast method. Google "working ASUS Maximus IV Gene-Z hackintosh" and see if there is a guide. (For example, here is one thread on the topic http://tonymacx86.com/viewtopic.php?f=7&t=30091&start=0 )

I was wondering the same on a Gigabyte ga-p35-ds3. If yes which board do I choose

anyone ? will kakewalk have a chance on a Gigabyte ga-p35-ds3 board. And if yes which board should I choose, when making the USB disk

Go to the Gigabyte websight and use the compare features function and compare your p35 board to the supported p45 boards. Use the closest board as your base to install. Remember to delete the DSDT file for the p45 board from the /Extra folder before rebooting or you will get a kernel panic. You may also need to add EvoReboot kext and nullCPUPowerManagement kext to /Extra/Extensions. Your audio probably won't work, so you will need to google to find kext files for it - same for onboard network chipset drivers.

okay - thanks for your hints... will try