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Thread: A4000TX ATX Amiga motherboard

  1. #251
    Nrg's Avatar
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    Quote Originally Posted by hese View Post
    A4000TX rev 1.1 Rev 1.1 has the following improvements compared to the rev 1: - onboard Fast RAM support up to 112MB (Meutoxo)
    Not sure if it was already mentioned in this thread.. but here goes. What are the possible memory configs, to get 112 MB of onboard Fast RAM working on A4000TX? 2x 64 MB SIMMs, or 1x 128 MB SIMM ? What are the exact specs of required memory speed/type/etc ? Thanks!

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    Quote Originally Posted by Nrg View Post
    Quote Originally Posted by ori1a View Post
    I checked random PC store and found many matching new models Chieftec: GPS 1250C, GPS 1350C, GPS 1450C and even small almost good SFX 450BS
    Thanks! GPS-1000C seems to match the required specs aswell, and it's a bit more compact than the bigger models. Do you happen to know of any detailed review/benchmark of those Chieftec GPS series PSUs ?
    There arent any benchmarks for any modern PSU in Amiga like configurations.
    There is always risk.
    Thats why I prefer used older models that cost fraction of new one.

    Wysłane z mojego SM-A715F przy użyciu Tapatalka

  3. #253
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    Quote Originally Posted by ori1a View Post
    Quote Originally Posted by Nrg View Post
    Quote Originally Posted by ori1a View Post
    I checked random PC store and found many matching new models Chieftec: GPS 1250C, GPS 1350C, GPS 1450C and even small almost good SFX 450BS
    Thanks! GPS-1000C seems to match the required specs aswell, and it's a bit more compact than the bigger models. Do you happen to know of any detailed review/benchmark of those Chieftec GPS series PSUs ?
    There arent any benchmarks for any modern PSU in Amiga like configurations. There is always risk. Thats why I prefer used older models that cost fraction of new one.
    Yeah obviously Amiga isn't in the testing matrix of new PSUs I meant detailed PSU reviews like the ones I linked in the previous posts (tomshardware, kitguru) where they actually measure, test and verify the PSU specs and performance. They do seem to test the voltage stability, ripple etc of the 5V rails aswell, to some extend at least. Also those reviews give pretty good summary of the actual quality of the PSU. I prefer seeing review and testing results before deciding what to buy, as I don't really have the equipment or skills myself to verify the actual quality of the (new or old) PSU.
    Last edited by Nrg; 6th July 2020 at 19:54.

  4. #254
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    Quote Originally Posted by Nrg View Post
    Quote Originally Posted by hese View Post
    A4000TX rev 1.1 Rev 1.1 has the following improvements compared to the rev 1: - onboard Fast RAM support up to 112MB (Meutoxo)
    Not sure if it was already mentioned in this thread.. but here goes. What are the possible memory configs, to get 112 MB of onboard Fast RAM working on A4000TX? 2x 64 MB SIMMs, or 1x 128 MB SIMM ? What are the exact specs of required memory speed/type/etc ? Thanks!
    So after looking into it I probably should be using 2x 64 MB SIMMs with A4000TX (rev 1.1), right ?

    memory specs for A4000TX:
    - 64 MB SIMM 72-pin FPM non-parity 16X32 60ns 5V ?
    - Are EDO SIMMs supported ?
    - Do double-sided SIMMs fit? Or single-sided required?

    Thanks!
    Last edited by Nrg; 9th July 2020 at 08:59.

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