Indivision AGA MK3 Over-heating issue (?)

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Don't Panic. Please wash hands.
  • Hi,


    I recently installed my Indivision AGA MK3 into my Amiga CD32. All works well except for when it has been running for 30+ minutes. The video output remains stable, the Live mode functions as expected but saving any changes to the Configuration via the Indivision AGA MK3 Tool fails to actually save the new configuration. It "saves", but if I when I re-open the Tool, I am presented with a requester "The Configuration is not saved to the Device". It will do this indefinitely no matter how many times I click on "Save & Apply until I leave the computer powered off for around 15 minutes or so. After the CD32 has cooled down, I get the requester again when opening the Tool, but it saves this time, not appearing until the next settings change when opening the Tool. Other than that, everything works properly. This behavior is 100% repeatable.


    Are there any suggestion on how I can keep the Indi cool?


    Thanks.

  • How do you boot this machine (harddrive? CD32 accelerator or mem expansion?), and how do you power it?


    Jens

  • It has a TF360 with a 68060LC at 50 MHz, The PSU was bought from Keelog.com, made for the CD32. I am not sure of the make. I do not have the original PSU when I bought the CD32 a few years back (similar model image attached).


    I have a Thermal Camera and grabbed some readings. The CPLD (Cyclone chip) hit s a max temp around 80c with the case on after 15-20 minutes, The CPU sits around 55C with no heatsink or fan. Ambient air temperature was 21c at the time of measurement


    . I attached small heatsinks to the 3 main chips to see if this helps (from my Raspberry Pi Heatsink Kit)


    Allan V.

  • Update:


    The little pi heatsinks had little affect. I may try an active solution as a test to see if this resolves the issue. The problem I am experiencing is minor, since I can save any changes once I power the system back up after a period of rest (as long as no damage occurs to the IndiAGAmk3 during prolonged use).

  • The PSU was bought from Keelog.com, made for the CD32

    Well, they say it's made for CD32, but they lie. They only put a CD32-compatible plug on it, but it's far from compatible with the unit. You should be able to send it back for a full refund, because it has been sold to you with false advertising. There should be laws about that in pretty much every country on the planet.


    I'm pretty sure that this is an Agnus problem: When the PSU gets warm under load, output voltage drops, and it drops more on the cable, in the connector and the input filters, and too-low voltage arrives in the system.


    Unfortunately, I don't have a solution for CD32 yet. I may have to expedite that development, as leaving customers to scalpers that just sell without taking responsibility is ultimately bad for the Amiga community.


    Jens

  • Jens,


    Thanks for the Info. I will try an Amiga 500 to CD32 PSU cable adapter, this way I can use my older, higher wattage Amiga 500 Power Supply. I'll see if this helps.


    PS: The Video Output of your scaler is awesome. Much clearer than the RGB analogue out of my CD32. Giving the Amiga a seamless way to connect to modern TVs is more than once could ask for.