Sneak peek of the rare system I am restoring...

Discussion in 'Rare and Obscure Gaming' started by jollyroger, Jun 11, 2018.

  1. jollyroger

    jollyroger Gutsy Member

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    IMG_2385.JPG

    Any guesses? :)

    Jollyroger
     
  2. Nully

    Nully Enthusiastic Member

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    N-Gage? :rolleyes:
     
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  3. jollyroger

    jollyroger Gutsy Member

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    Really? No guessing?
    I wager most people here have never seen one of these in person, or at all... ;)
     
  4. Borman

    Borman Digital Games Curator

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    GS Cube?
     
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  5. jollyroger

    jollyroger Gutsy Member

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    Good call!
    It is in fact not the GSCube, but a prototype system that Sony used to develop what went into the GSCube.
    Its name is GSBox.
    More to come...
     
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  6. Borman

    Borman Digital Games Curator

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    I'm good! Hah. Curious to see it all going.
     
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  7. Twilight

    Twilight Site Supporter 2015

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    Is it that prototype PS2 system from Yahoo Japan?...
     
  8. jollyroger

    jollyroger Gutsy Member

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    It is. It is a really fascinating machine...
     
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  9. DSwizzy145

    DSwizzy145 Well Known Member

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    is it a Apple Pippin?
     
  10. PixelButts

    PixelButts Site Soldier

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    Got a link to that listing by chance?
     
  11. speedyink

    speedyink Site Supporter 2016

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    This is very cool, can't wait to see what you manage to do with it :)
     
  12. Dr.Funk

    Dr.Funk Lost Media Enthusiast

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    Wow I thought we would never see any of the early ps2 protypes in the wild. This is really cool.
     
  13. jollyroger

    jollyroger Gutsy Member

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    I will write a full report on my findings and the process of restoration I took to make it operate properly, stay tuned.
     
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  14. unclejun

    unclejun Site Supporter 2011-2014

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    I second that request, it would be nice to see the pics from the auction.
    jollyroger, is this is?
    [​IMG]
     
  15. jollyroger

    jollyroger Gutsy Member

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    No, it is a later system, a direct prototype predecessor to the GSCube.
     
  16. unclejun

    unclejun Site Supporter 2011-2014

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    That sounds like an amazing find, can't wait to read your piece about it!
     
  17. wisi

    wisi Active Member

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    Does "GSM n" stand for Graphics Synthesizer Module/Memory n, meaning that this has four GS chips (each of which with a separate EE, IOP, PCI bridge)?
    I wonder how the images from the GS chips are combined, whether they linked in a chain through their digital video inputs and outputs or that is done by a separate IC.
    How close (or different) is the hardware to that of a normal PS2? It would be interesting to know if the GS control registers are any similar to a "normal" GS.
    It sounds amazing that it was at all possible to make such a rare device operate properly, knowing how much the lack of documentation about some areas of the PS2 hinders the development of high-performance or even correctly functioning drivers.

    EDIT: Based on the post by SP193 below:
    Maybe there is a limitation in how multiple GS chips can be linked to form a common image. This may be why the known variants of this hardware (assuming this GSBox is 2x2 GS) are:
    GSBox 2x2
    GSCube (16) 4x4
    GSCube (64) 8x8
    So it may be that only powers of two can be the number of images that make-up the sides of the image, which would explain why they needed to jump from 16 GS chips all the way to 64GS chips.
     
    Last edited: Jun 15, 2018
  18. sp193

    sp193 Site Soldier

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    Does this demo screen mean that it has multiple GS devices, with each one rendering a different corner of the screen?

    We've long wondered why/how the PlayStation 2 GS has high-resolution modes like 1080I, but is apparently poorly-equipped to support such resolutions. So far, Maximus32 has gotten full-resolution 1080I support... through rendering the screen across multiple passes.
    I think it was always assumed that the GSCube has much more memory than a the common GS, but maybe not...

    Thanks for sharing.
     
  19. DeChief

    DeChief Rustled.

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    Thanks for outbidding me on that.
     
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  20. TriMesh

    TriMesh Site Supporter 2013-2017

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    The ones in the GScube had 32MB per chip as opposed to 4MB in the standard GS used in the PS2.

    It's hard to know what's in this test system - depending on when it was built it could either have the standard retail GS with 4MB or the one with the expanded memory - it would depend on where they were in the development process and if they had the revised silicon yet.
     

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