RetroPie forum home
    • Recent
    • Tags
    • Popular
    • Home
    • Docs
    • Register
    • Login
    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

    Scheduled Pinned Locked Moved Help and Support
    slowdownraspberry pi 3bplaystation 1
    66 Posts 8 Posters 11.2k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • stooS
      stoo @BobHarris
      last edited by stoo

      @bobharris PCSX-rearmed doesn't use scph1001. You're using emulated BIOS.

      https://docs.libretro.com/library/pcsx_rearmed/

      Lol, I just noticed the RetroPie docs say to use scph1001. I'm going to assume that the guys at Libretro are correct and the RetroPie docs are outdated.

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

        @shakz I'm using the oficial power supply which I have it for only 2 months and never noticed that rainbow. @stoo Nice find! I'm at home and will test it in the next hour

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

          @stoo So you're saying almost everyone here is using an unsupported ps1 bios?
          This is wrong information? :
          https://github.com/retropie/retropie-setup/wiki/Playstation-1

          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 According to the Libretro docs, yes, that is wrong information.

            BobHarrisB 1 Reply Last reply Reply Quote 0
            • 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
                                  • First post
                                    Last post

                                  Contributions to the project are always appreciated, so if you would like to support us with a donation you can do so here.

                                  Hosting provided by Mythic-Beasts. See the Hosting Information page for more information.