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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    Random slowdowns on PS Games with Retropie 3 B

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    slowdownraspberry pi 3bplaystation 1
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    • BobHarrisB
      BobHarris @stoo
      last edited by BobHarris

      @stoo I don't think so. I deleted my scph1001 bios and now when I start a ps1 game it suddenly says No playstation bios file found - add for better compatibility.

      Pi 3B , 64 GB Sandisk ultra flashdrive, 19 systems, 872 hand picked classic gaming gems :-) Dual shock 4v2

      stooS 1 Reply Last reply Reply Quote 0
      • stooS
        stoo @BobHarris
        last edited by

        @bobharris Guess it can use both then. I still put more faith in the LR docs than the RP ones :P

        stooS BobHarrisB 2 Replies Last reply Reply Quote 0
        • stooS
          stoo @stoo
          last edited by

          OK, that's just weird as hell. I just removed the 550x files and replaced then with the 1001 file to test and now it performs the same: fine. Even emulated BIOS seems to work fine!

          I'm confused.

          BobHarrisB 1 Reply Last reply Reply Quote 0
          • BobHarrisB
            BobHarris @stoo
            last edited by

            @stoo I have 72 ps1 games and they all work great when using SCPH1001.BIN , but yes I'm sure other bios files can work great too.
            I am curious if it changes anything for Tiagop.

            Pi 3B , 64 GB Sandisk ultra flashdrive, 19 systems, 872 hand picked classic gaming gems :-) Dual shock 4v2

            stooS 1 Reply Last reply Reply Quote 1
            • BobHarrisB
              BobHarris @stoo
              last edited by

              @stoo Why do you call 1001 emulated? isnt it just the first bios made for the ps1?

              Pi 3B , 64 GB Sandisk ultra flashdrive, 19 systems, 872 hand picked classic gaming gems :-) Dual shock 4v2

              1 Reply Last reply Reply Quote 1
              • stooS
                stoo @BobHarris
                last edited by stoo

                @bobharris That makes two of us now. I really thought I'd solved it.

                It's not emulated. I thought because of the performance difference I saw and because the LR docs say to use the 500x bios specifically that meant it wouldn't recognise other BIOS files.

                It does, I checked runcommand.log. If it sees 550x BIOS it will use that, if it sees 100x BIOS it will use that. It only falls back to emulated if it sees no BIOS file at all.

                BobHarrisB 1 Reply Last reply Reply Quote 1
                • BobHarrisB
                  BobHarris @stoo
                  last edited by

                  @stoo I always wondered about that. I've thought about putting every ps1 bios file in the bios folder, hoping pcsxrearmed would choose the optimal file for every game, but I have no idea what pcsxrearmed chooses when confronted with multiple bios files.
                  Getting a bit off topic though..

                  Pi 3B , 64 GB Sandisk ultra flashdrive, 19 systems, 872 hand picked classic gaming gems :-) Dual shock 4v2

                  stooS 1 Reply Last reply Reply Quote 1
                  • tiagopT
                    tiagop
                    last edited by

                    So I deleted SCPH1001.BIN and used scph5500.bin, scph5501.bin and scph5502.bin. I notice that it's now a bit better, the framedrops are more smooth and the game is more smooth overall. Maybe I had a bad BIOS file? Thanks for the help from all of you!

                    BobHarrisB 1 Reply Last reply Reply Quote 1
                    • BobHarrisB
                      BobHarris @tiagop
                      last edited by

                      @tiagop Could be, I'm glad it worked out for you!

                      Pi 3B , 64 GB Sandisk ultra flashdrive, 19 systems, 872 hand picked classic gaming gems :-) Dual shock 4v2

                      1 Reply Last reply Reply Quote 1
                      • stooS
                        stoo @BobHarris
                        last edited by

                        @bobharris Well with both 1001 and 5501 in there it chose to use 5501. How it decides I have no idea.

                        BobHarrisB 1 Reply Last reply Reply Quote 2
                        • BobHarrisB
                          BobHarris @stoo
                          last edited by

                          @stoo I guess maybe it chooses the latest version of the specific region then. Thanks for checking!

                          Pi 3B , 64 GB Sandisk ultra flashdrive, 19 systems, 872 hand picked classic gaming gems :-) Dual shock 4v2

                          1 Reply Last reply Reply Quote 1
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