New Member,need Help with OS X installation on my HP pavilion p6 2019itm

[leonardopisani]

Hi everyone,i'm Leonardo

My pc hardware specs are these :i5 2320,intel H61,8Gb ddr3 RAM ,1tb HD Western Digital,AMD Radeon 6450

I've created a bootable USB and then installed OS X 10.11 on my HD previously formatted to GPT

then i've installed the Clover Bootloader(so i think) but when i unplug my USB key and i reboot my pc,it shows the bios settings with the write "No boot disk has been detected or disk has failed" what can i do?Help ME!