Instant Reboot at the Apple Logo

[nightorres]

Apple logo appears and in less then 2 seconds the machine restarts. Tried to boot in -v -x -f GraphicsEnabler=Yes (and NO), PCIRootUID=1, cpus=1, no help/the same thing happens...
My System is:

Hp pavilion n020
cpu: core i5-4200U/ Motherboard hp 2161
Intel HD 4400/ 1366x768

 

[monobianco87]

Apple logo appears and in less then 2 seconds the machine restarts. Tried to boot in -v -x -f GraphicsEnabler=Yes (and NO), PCIRootUID=1, cpus=1, no help/the same thing happens...
My System is:

Hp pavilion n020
cpu: core i5-4200U/ Motherboard hp 2161
Intel HD 4400/ 1366x768

that is because you have haswell cpu

read this topic http://www.tonymacx86.com/yosemite-...ng-kernel-haswell-cpus-xcpm-early-reboot.html

 

[RehabMan]

Apple logo appears and in less then 2 seconds the machine restarts. Tried to boot in -v -x -f GraphicsEnabler=Yes (and NO), PCIRootUID=1, cpus=1, no help/the same thing happens...
My System is:

Hp pavilion n020
cpu: core i5-4200U/ Motherboard hp 2161
Intel HD 4400/ 1366x768

Suggest you use the Clover guide: http://www.tonymacx86.com/yosemite-...oting-os-x-installer-laptops-clover-uefi.html