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WTB: PCI floppy controller

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    WTB: PCI floppy controller

    I am looking for a PCI floppy controller. I understand these are hard to come by but I thought I try asking. I would like to add 3.5 and 5.25 support to my modern PC that doesn't have built controller.

    #2
    I wasn't aware that there were any generic (NEC 765 type) PCI floppy controllers.
    Reach me: vcfblackhole _at_ protonmail dot com.

    Comment


      #3
      I'm pretty sure such a creature doesn't exist.

      There are "forensic" floppy controllers that can act sort of like a normal floppy drive, but they're very expensive:

      https://webstore.kryoflux.com/catalo...products_id=28

      About as close as you'll get to floppy support on a modern machine is an LS-120/240 which can read/write/format 3.5" disks. 5.25" isn't possible really.

      Comment


        #4
        GiGaBiTe pretty much summed it up. I have an older PCIe mobo with a 790 series chipset and it has native support for IDE and floppies. Caveat: You can use any floppy format you wish but only for one drive. I set it up with a 5.25 and then use a USB 3.5 floppy.
        Surely not everyone was Kung-Fu fighting

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          #5
          ...but I take it that the floppy controller isn't a separate plug-in board.
          Reach me: vcfblackhole _at_ protonmail dot com.

          Comment


            #6
            Originally posted by haightc View Post
            I am looking for a PCI floppy controller. I understand these are hard to come by but I thought I try asking. I would like to add 3.5 and 5.25 support to my modern PC that doesn't have built controller.
            In lieu of a floppy controller you can use two (or even more) networked floppy drives on your modern PC. If you share them you should be able to use them on your PC that doesn't have or support them. I know I do.
            PM me if you're looking for 3" or 5" floppy disks. EMail For everything else, Take Another Step

            Comment


              #7
              Originally posted by Chuck(G) View Post
              ...but I take it that the floppy controller isn't a separate plug-in board.
              No, it's on board.
              Surely not everyone was Kung-Fu fighting

              Comment


                #8
                Those are more common than you'd think on even later boards (P4, AM3+, etc.).
                Reach me: vcfblackhole _at_ protonmail dot com.

                Comment


                  #9
                  ...but I believe that such FDCs are still wired into an ISA bus. Even if that ISA bus isn't expressed as an actual slot, it's present.

                  Comment


                    #10
                    Originally posted by Chuck(G) View Post
                    Those are more common than you'd think on even later boards (P4, AM3+, etc.).
                    A P4 is a later board? The last P4 was released over 10 years ago lmao.

                    Floppy support died out pretty much completely by the time the LGA1155 and Sandy Bridge came out. Some early AM3+ boards had floppy support, but it died out later.

                    There are a couple of LGA1155 boards with floppy drives, but they're usually buggy and junk low end boards like this one:

                    https://www.newegg.com/Product/Produ...82E16813157253

                    Comment


                      #11
                      Originally posted by bear View Post
                      ...but I believe that such FDCs are still wired into an ISA bus. Even if that ISA bus isn't expressed as an actual slot, it's present.
                      Incorrect.

                      Modern floppy controllers integrated into the Super I/O chip run on the LPC bus.

                      Comment


                        #12
                        There have been various posts on related threads that have stated that P3 was the end of the floppy-controller motherboards. So yes, P4 is later than P3. I did say "later', not "modern". Don't confuse the two term. A 1401 is later than a 650. Neither is recent nor modern.

                        The problem is that legacy floppy controllers depend on legacy 8 bit DMA as well as being pretty much wedded to IRQ 6 and I/O port addresses 3F0-3F7. So it's necessary for the chipset to support the ISA conventions. Sure, you could probably marry a floppy controller to other conventions, but no legacy software would work with them.
                        Reach me: vcfblackhole _at_ protonmail dot com.

                        Comment


                          #13
                          I recall seeing one awhile back, can't recall the manufacturer. Then there was the Catweasel Mark IV, which was good for multi-platform use. A true floppy controller would be ideal, but I do have a 486sx with a 5.25" drive. I have a Atari 800XL I still use and there is something nice to me about using an actual floppy disk. older floppy drives are fortunately pretty rock solid along with their media fortunately. My tower has an empty unused 5.25" bay and unconnected 3.25" drive, that would be nice to populate. I might just end up getting a kryoflux or FC5025 later down the road, but as I was saying I would prefer a real floppy controller.

                          Comment


                            #14
                            A PCI floppy controller is possible mind you. Most if not all are an I/O based design, and all you need that's complex to hook it up with is a ASIC controller for the bus when using something like PCI Express. Good luck doing the following things though;

                            1) Trying to find any modern motherboard that has flexibility with option ROMs while ports 3F0-3F7 are available
                            2) Trying to get 8-bit DMA to even work
                            3) Trying to work around IRQ's and timing sensitivity

                            Basically, what Chuck said.
                            Join the penny pincher army today!

                            Comment


                              #15
                              I have a PCI multi IO card. it has 2 IDE and a floppy controller as well as the normal 2 serial and 1 parallel port.
                              A quick look at the card and it appears to have jumpers to enable or disable everything so it could be set to enable only the floppy controller.
                              http://arvutimuuseum.ee/th99/c/E-H/20876.htm

                              My suggestion is to look for a PCI multi IO card and if you cant disable the unwanted features of the card disable the ones on the mainboard.

                              Edit: I just did a search on ebay and couldn't find one. Maybe they are not very easy to find, so my alternate suggestion is to install a 5.25" in the machine and use a cheap usb floppy drive for reading 3.5" disks.
                              Last edited by David_M; October 31, 2017, 10:42 PM.

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