I have this files but PCSX don't see the bios in the folder :
SCPH-70004_BIOS_V12_PAL_200.BIN
SCPH-70004_BIOS_V12_PAL_200.EROM
SCPH-70004_BIOS_V12_PAL_200.NVM
SCPH-70004_BIOS_V12_PAL_200.ROM1
SCPH-70004_BIOS_V12_PAL_200.ROM2
Edit : I've found the solution, but PCSX2 doesn't work on my computer
SCPH-70004_BIOS_V12_PAL_200.BIN
SCPH-70004_BIOS_V12_PAL_200.EROM
SCPH-70004_BIOS_V12_PAL_200.NVM
SCPH-70004_BIOS_V12_PAL_200.ROM1
SCPH-70004_BIOS_V12_PAL_200.ROM2
Edit : I've found the solution, but PCSX2 doesn't work on my computer