Set the directory to wherever you saved the two BIOS files in step 2.

The first directory option under the Directory section is System/BIOS Dir.

Near the bottom of that column is the Directory section.

It is in the second column – “Settings” the one with the gears for the icon.

Open RetroArch and enter the Directory location.

You will have to set the BIOS location in RetroArch.

everything is saved to RetroArch.cfg) then place all BIOS files for all emulators in the same folder (again, typically RetroArch/system folder.)

You can place them where ever if you use per-core configs (I use RetroArch/system/mednafen_saturn_bios).Typically this is the RetroArch/system folder.Place them in the appropriate folder under RetroArch.Download the two BIOS files you need (they are here in a zip file.).Gone are the days when people used to wait for turns and opt for manual gaming strategies! Gaming is a whole new world that has grown in leaps and bounds. SCPH7502.bin BIOS Files – A brand New PlayStation Gaming Experience S.

Scph5500.bin scph5502.bin and scph5503.bin are in the Bios folder and all seems fine and recognized now I only have to take care of SCPH1001.BIN (checksum ok) and I've read everywhere that the file was case sensitive so I renamed it scph1001.bin, apparently does not belong in the Bios folder. Hi, I am trying to figure out the PSX emulator on my retropie3 and I think I'm almost getting there. Download the PlayStation 1 BIOS (SCPH1001.bin) required by PlayStation 1 emulators for playing PlayStation 1 games on PC or smartphone.

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