USB GDrom Thread

Discussion in 'Sega Dreamcast Development and Research' started by nonosto, Jun 13, 2015.

  1. Plavix

    Plavix Rapidly Rising Member

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    I’m using a DreamPSU with my USB gdrom and my DC is cold after 2 hours of use. No heat issues at all.
     
  2. Comp1demon

    Comp1demon Spirited Member

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    DID not work.

    Desoldered the 3 pins. Pulled out the Regulator (which was secured with a screw,
    Also Removed the Resistor.

    Blank screen with USB GD ROM installed.

    REsoldered back in.. Fired right up.
     
  3. rayik24

    rayik24 Active Member

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    You do not need the 12 volt rail. I've removed it on 2 DCs and USB GD-ROM worked fine in both without 12v. On one of the DC I ended up replacing stock psu with PicoPSU not even hooking up 12v. USB gd-rom works fine even with Toro box hooked up. Not sure why yours did not work.
     
  4. Comp1demon

    Comp1demon Spirited Member

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    I know it Did it correctly. I used my desolder pump. Undid the screw. Sucked the 3 points and the regulator fell right out. The Resistor I used my hot Tweezers. Melted the solder on each side and lifted the resistors right up. Placed them to the side.

    POPed in the usb gdrom. Turned it on Black screen. Tried GDEMU card too. Neither gave me a pic. Even tried booting it with no gdrom drive or card attached. Nothing.

    Removed the power supply soldered it back in. Turned it on and worked perfect. But I now have 12V rail active.

    Was using composite cable for testing.

    Perhaps I'll try a different DC.
     
  5. Comp1demon

    Comp1demon Spirited Member

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    DELETE THIS sorry...
     
  6. Rocky5

    Rocky5 Site Supporter 2015

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  7. psydefx

    psydefx Peppy Member

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    so i just got the official dreamcast vga box and am wanting to test it with my usb-gdrom and the 12v removed, it should be fine right?

    also since mnemo still has not added .ccd support whats the best/easiest way to convert the indie releases to bootable .cdi?
     
  8. Mrneo240

    Mrneo240 Gutsy Member

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    My favorite way of getting anything converted is mounting in Damon tools and then ripping with disc juggler 3.5
     
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  9. Damn-Deal-Done

    Damn-Deal-Done Spirited Member

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    Hello.

    Can anyone confirm if opening and closing the lid resets to USB GDROM menu?

    If l reset out of a game I end up in the Dreamcast menu where it will only load the previous loaded game.

    Only way to get back to USB GDROM menu is to power off and on which is not ideal.

    Cheers
     
  10. Rocky5

    Rocky5 Site Supporter 2015

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    Works fine on my v1 board. On the latest firmware also.

    D2 disc swapping also works fine for me on the latest firmware for folk that seem to have issues with it.
     
  11. Damn-Deal-Done

    Damn-Deal-Done Spirited Member

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    What do you do?

    During a game, open lid, it then goes back to ODE menu?

    Is it that simple? Can't understand why this has never worked for me.

    Cheers
     
    Last edited: Mar 31, 2018
  12. Rocky5

    Rocky5 Site Supporter 2015

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    It goes back to the DC Bios menu, you then need to close the lid and press A on the launch game icon.
     
  13. Damn-Deal-Done

    Damn-Deal-Done Spirited Member

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    Hi. Cheers.

    I cleared my HDD and started again. And sure enough it works now. No idea why it wsn't working but I suspect it was the .inf files I had downloaded from mnemo's site.
     
  14. ultramecha

    ultramecha Rising Member

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    Anyone here have copies of the old USB-GDrom Firmware? I have a friend on DC-talk thats getting the "Firmware Obsolete" error. Wanted to try some older firmware on it to see if that fixes the problem.
     
  15. Collingall

    Collingall Robust Member

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    I don't think you can install older firmware on it.
     
  16. Teddy Rogers

    Teddy Rogers Spirited Member

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    It is not possible to go back to older firmware after an update.

    Reads like your friend may have been modifying firmware? If memory serves me correctly that is the error message used when this happens...

    Ted.
     
  17. Gabry78

    Gabry78 Member

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    good morning, I wanted to know if with the new firmware 2018/04/18, Mnemo has changed the menu, (if you have pictures of the new menu), because in the official site i do not understand
     
  18. opt2not

    opt2not Member

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    Was the only update to this firmware a menu colour change? Seems hardly worth it to update my firmware if it's only that...
     
  19. eim88

    eim88 Member

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    mi still running firmware from launch I think lol gdroms and reset don work but i;ve herd stories on firmware messing up compatibility and most by game are cdi so meh never bothered
     
  20. sammargh

    sammargh Member

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    Applied the new update today, just a warning the firmware is really obtuse about the upgrade process. I was on 17-5-30 and it refused to flash until I updated to 17-09-05. I found a download to that firmware at https://dreamcast-talk.com/forum/viewtopic.php?t=10392 because it is no longer on the main website for USB GDrom.

    Anyways here's the new menu
    [​IMG]

    Looks pretty good on a 480i screen, only the --- lines bounce around now and the rest of the text is stable. Haven't had/won't have time to test game compatibility though.
     
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