Announcement

Collapse
No announcement yet.

Megachip for A500, A2000, and CDTV (rj1307 project, Poland)

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #76
    User BigSupes has received his Megachip

    Parcels sent to users optiguy & demolition


    Payment received from user viserys23 for 1x Megachip WITHOUT Agnus IC
    Last edited by DjCook; 27 September 2018, 20:45.
    8 Bit Dreams - computer & hardware repair in Germany

    Comment


    • #77
      Great news, will let you know when it arrives

      Sent from my SM-G930P using Tapatalk

      Comment


      • #78
        Declaring interest for 1 kit without Agnus.
        Amiga: A500+ / [x2] A500 / A600 Furia / [x2] A1200 / [x2] CD32, Commodore: C128 / C64C / C64R / U64,
        Amstrad: CPC 6128+ / GX4000 / CPC 464+ / [x2] CPC 6128 / CPC 464, SHARP: [x2] MZ-1500 / [x2] MZ-800 / [x2] MZ-700 / MZ-80 K

        Comment


        • #79
          Originally posted by DjCook View Post
          Originally posted by a500guy View Post
          ..Do you have installation instructions available based on board revision number? Basically what do I do with the single wire that is included. I know it should run from the megachip to the motherboard but where on the motherboard?
          Hi,
          Glad to hear Your parcel arrived. Instructions are as follows:
          1. Desolder old PLCC Agnus socket
          2. Solder in a new one that was delivered with adapter
          3. Insert new adapter (be careful and watch the correct position of Pin1
          4. Connect A20 wire to A20 signal on the motherboard (grab a multimeter and find the nearest point to the Megachip)
          5. Install new Agnus and run systest (scan memory)

          Enjoy 2MB ChipRAM
          Hi, what power output should I be looking for with the multimeter?

          Sent from my SM-G950F using Tapatalk

          Comment


          • #80
            A20 can be found on Gary (U5) pin 36 or the CPU (U1) pin 48 so you could choose to connect the wire against one of these two pins. It is also connected to one of the pads in JP5 on A500 Rev 6 boards, but this is where the multimeter comes in handy as you can use the continuity test to verify against the known point on U1 which is A20 on all revisions.

            This is the schematic of A500 rev 6 and you can search for A20 to find the locations:
            https://www.amigawiki.org/dnl/schematics/A500_R6.pdf
            A1200 (NOS) : 030 33MHz 128MB fast RAM (ACA1232) : Indivision AGA MkII : 8GB CF : RR USB : Ethernet
            A600 #1 : 080 V2 : 128MB fast : 2MB chip : Indivision ECS : 32GB CF : RR USB
            : Ethernet | A600 #2 : 010 : 2MB chip
            A500 : 68000 42MHz : 1MB chip : 8MB fast : 4GB CF | A500+ : 080 V2+ : 128MB fast : 2MB chip : 32GB CF

            Comment


            • #81
              Package received - FB on the way.
              A1200 (NOS) : 030 33MHz 128MB fast RAM (ACA1232) : Indivision AGA MkII : 8GB CF : RR USB : Ethernet
              A600 #1 : 080 V2 : 128MB fast : 2MB chip : Indivision ECS : 32GB CF : RR USB
              : Ethernet | A600 #2 : 010 : 2MB chip
              A500 : 68000 42MHz : 1MB chip : 8MB fast : 4GB CF | A500+ : 080 V2+ : 128MB fast : 2MB chip : 32GB CF

              Comment


              • #82
                payment info sent to user radfoo



                - - - - - Update - - - - -

                Payment received from user radfoo for 2x megachip WITHOUT AGNUS
                will update tracking info once parcel is sent
                regards,


                Viktor
                Last edited by DjCook; 5 October 2018, 19:30.
                8 Bit Dreams - computer & hardware repair in Germany

                Comment


                • #83
                  Payment sent for two boards, thanks.

                  Comment


                  • #84
                    Payment info was sent to Overdoc & britlord hope you, guy's still want them
                    8 Bit Dreams - computer & hardware repair in Germany

                    Comment


                    • #85
                      Originally posted by DjCook View Post
                      Payment info was sent to Overdoc & britlord hope you, guy's still want them
                      Payment sent for megachip....

                      Comment


                      • #86
                        Payment received from Britlord (pending question)
                        8 Bit Dreams - computer & hardware repair in Germany

                        Comment


                        • #87
                          Originally posted by DjCook View Post
                          Parcels for BigSupes and SukkoPera was sent
                          Package received (it sat at the Post Office for a while), not installed yet, but all looks perfect. Feedback coming.
                          Last edited by SukkoPera; 9 October 2018, 12:09.

                          Comment


                          • #88
                            Parcels sent to users:
                            radfoo ( 2× without Agnus)
                            britlord (1× Vomplete with Agnus chip)
                            Tracking info will follow with PM

                            - - - Updated - - -

                            Payment received from user Tbtorro for 2x Megachip without Agnus
                            8 Bit Dreams - computer & hardware repair in Germany

                            Comment


                            • #89
                              Originally posted by ChefDeadpool View Post
                              Has anyone confirmed this is working on NTSC CDTVs? I use the workbench quite a bit on mine and could use the extra chipmem.
                              have ordered some NTSC Agnus chips, will ba able to test soon

                              Still no answer from Overdoc
                              8 Bit Dreams - computer & hardware repair in Germany

                              Comment


                              • #90
                                Interested in another one.. Built with a PAL Angus chip.....
                                Last edited by britlord; 10 October 2018, 22:56.

                                Comment

                                Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
                                Working...
                                X