i cant boot #iATKOS

help me please i have installed my mac osx86 onto a partition on my hardrive and when it finished installing it prompted me to restart, however when i restarted my pc it took me too the boot screen showing the partitions of my hardrive, when i tried to boot snow leopard it quickly went to the apple logo for about half a second then restarted my computer, it does this over and over

, can sombody please help me!

my processor is an AMD FX-4100