Great! So what's your Boot.plist please?
This is mine:
<key>EthernetBuiltIn</key>
<string>Yes</string>
<key>GraphicsEnabler</key>
<string>No</string>
<key>IGPEnabler</key>
<string>Yes</string>
<key>Kernel</key>
<string>mach_kernel</string>
<key>Kernel Flags</key>
<string>darkwake=0 npci=0x2000</string>
<key>Legacy Logo</key>
<string>Yes</string>
<key>Instant Menu</key>
<string>Yes</string>
<key>Timeout</key>
<string>2</string>
<key>UseKernelCache</key>
<string>Yes</string>
<key>Graphics Mode</key>
<string>1680x1050x32@60</string>
After the 10.9.2 update reboot, i've an infinite loop on Apple logo...
Can only boot using -x GraphicsEnabler=No npci=0x2000
Then i reinstall Audio drivers, FakeSMC, Intel Ethernet drivers... evreything...
Did i forgot something? Your Multibeast settings are welcome too
Many thx!