Discovery

I’ll be shipping whatever Type-3 Phoebes I still have in stock next week, and after that there will be a short pause until I get the next Phoebe batch. So if you don’t get payment request next week you’ll have to wait until the first week of March, or so.

Same goes for any DocBrowns I haven’t shipped yet. There was a delay with the parts I ordered and now the batch is about 3 weeks behind schedule. On the bright side those will come with 1.5.1 FW that has the Flash corruption issue fixed for good. Though if you had this problem with 1.5.0 and you haven’t recapped your Marty PSU yet, I’d recommend looking into it sooner rather than later. In general these PSU hold up rather well for their age but the electrolytic caps are probably only barely within specs by now.

Speaking of FM Towns, I’ve found some TI docs that nicely explain what external circuitry the 486SLC-class CPUs need to have proper cache flushing support. Considering that replacing the 386 with 486 usualy involves soldering anyway, additional wire or two and an extra 74AC chip wouldn’t really be that much of a problem and it just might simplify a lot of things on the modded system. I need to investigate.

It would be much easier (and cheaper should I mess up) to experiment on a typical PC mobo though, and so I’ve obtained one that looks like it can actually support 486SLC chips natively. But the clock is hardwired to 40MHz for the AMD 386SX that’s on it – and while it’s not terribly difficult to mod it to a different clock speed with external generator, I’m not sure if it’ll work properly with the memory and ISA bus. Chances are those have to be synchronized with the CPU clock.

So, if there’s anyone with a TX486SXLC-040 chip in PQFP-100 package for sale, I’d be very interested in buying it. Or trading for some ODEs if that’s preferable.

UPDATE: Forgot to make a photo of the mobo:

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45 thoughts on “Discovery

  1. Thank you for the suggestion, I’ve recapped the mainboard but not the PSU unfortunately 😦

  2. I may have a chip, I bought a couple some time ago. I will check and if so, I will drop you an email

  3. Sorry for the double post …

    Got on the order confirmation for GDEMU and Rhea ODEs during December 2018. Got shipment confirmation for GDEMU and received in 2 weeks. Got Rhea shipping confirmation and it’s been 4 weeks but still no show. Can anyone shed some light on how long it’s taking to receive shipment to Canada?

    Very much appreciated on any feedback and thank.

    • Sometimes the package goes by sea, no idea why. In that case it’ll take 6-9 weeks plus it will not show up in the tracking system until it reaches Canada.

  4. Any update for when the next chance to order or be put on the next list?

    I need either one of the following:

    Rhea
    My model number type 1 / VA1

    phoebe
    My model number type 2 model 2 round Buttons

  5. Nice work. I know you had mentioned possibility of Sega CD ode in the past, been wondering if all the different versions would be a roadblock? Model 1, 2, CDX, JVC X-Eye…

    • I think the model 2 would be the most likely candidate. There are more of them out there, they are more cost effective than the CDX and X’Eye and it would be the easiest to work with from an installation stand point. Plus it’s compatible with Model 1 & 2 Genesis systems.

      In the end, I don’t care which one gets an ODE….. I just want to see it happen for one of them.

      • There is a SEGACD ODE in the works from a guy I know. How likely he will complete it? No Idea. If anything newsworthy comes about from it, I will pass the info on to the usual Retro news sources.

        Personally I think GDEMU would have a segaCD ODE done before anyone else. He has Sega Knowledge under his belt (dreamcast and Saturn). I am sure if he did a Sega CD ode it would not be a drop in replacement. I think he would make it so that the ODE would be the SegaCD and the genesis expansion port will just plug into the ODE and that would be it.

  6. I received my payment request on Friday. Thanks gdemu.

    I have a Model 2 Sega CD and would also be interested in an ODE for it. I love it but its taken a long time to get it stable. Got it out of a friend’s garage a decade ago.

    I put in a new OEM KSS-240 so it reads games but I had to put some folded paper and tape on the laser limiter switch to prevent the gear grinding/teeth stripping protection noise and to reduce wear.

    I also had to do the 1 1/4″ fuse holder mod. It is worth it despite having to tape the points to prevent grounding to the bottom metal plate. If you’re cheap like me a 1A fuse and the 3-1 cheapo NES/SNES/Gen power supply (850mA) actually has worked out well. With RadioShack dead where I am Home Depot is the only option and their selection is limited lol. Don’t try a NES OEM adapter, that is 9V AC and wrong polarity. Yes I’m dumb haha.

  7. Thanks for the payment request and for the blog post. Cool that a status update is out there for those who didn’t.

    But, I need help as I’m a little furious right now. Been working for the past couple weeks on and off to get games ready for Phoebe. Used My Life In Gaming’s guide and used Discjuggler on my Windows 10 PC. Painstakingly put each game in a folder and used the GDEMU manager for the SD card.

    Tried to use RMENU, each game came up as “NOT A SATURN DISC”. Come to find out Windows 10 handles Virtual Drives incorrectly do my combo of Daemon Tools and Discjuggler did NOT work.

    I was told that only Alcohol 120% really works so I grabbed that. Now, here’s where I need help from everyone. What are the settings I need to use to successfully rip a Saturn disc for use with Phoebe using Alcohol 120%?

    Really don’t want to go through all of this hassle for a third time.

    • I know DT Lite ver. 4.49 works. Though I haven’t tested it with Win10. And I don’t have Alcohol 120% so can’t help you there.
      There is no need to convert all images to CDI format unless you have CUE/BINs (in which case I’d rather look for better dumps). For example CloneCD format is well supported (the program itself works on Win10 as well).

      • Yeah, mine are either Darkwater or Redump as both sets are missing games the other one has. Trying to dual boot my older PC to use Windows 7 and 10. I’ve seen some people use UltraISO to convert images. Any successes with those?

    • I can help you.. But you need windows 7. Not windows 10. Windows 10 does suck for many of these programs. There is a Patch for W10 but I could never find it or get it to work.

      If you have access to windows 7 let me know I’ll be glad to upload and post links to the 2 programs you need and how to do it. All my CDIs work flawlessly and my virtual drives work great for both Saturn and Fm Towns

      • I have Win 7 one one of my computers and need to change BIN/CUE files to CDI for PHOEBE. If you have some information/programs that would help with that, it would be greatly appreciated.

    • Google “Edge emulation sega saturn” and use those isos. Don´t forget the .ini file on the sd card with the correct region of your console as explained in the phoebe operation section here. Big thanks for both ODE Devices to the creator of those,but you should really rethink your supply&demand strategy!! I own both devices now (legit,and it was a bit of a pain in the ass to get those),but i would have prefered to wait a year to recieve mine as long as i could get on a list ( waited 9 months for my PSIO …)…just my 2 Cents

      • Personally I prefer Panasonic low-ESR series, all switched-mode PSUs I’ve recapped so far work great. 105C obviously, and usually higher voltage with the same dimensions as originals. Though it’s important not to overdo things, there’s no point in going too high voltage on the DC output side, it’ll only worsen the ESR.

  8. Missed again all gdemu batches, too much work, too much kids, too much everything…

  9. Hello gdemu,

    Is there any way to be notified when new orders are accepted for a Phoebe? Thanks for all your hard work.

  10. Do you still need the CPU? I think I might have a couple. Not sure how else to reach out to you.

  11. Tried using my Windows 7 PC with Discjuggler and Daemons Tools Lite and same issue with RMENU….”NOT A SATURN DISC”. Using my REDUMP versions. Why is this still an issue? What am I doing wrong?

    • See, this is why I don’t support CUE/BIN. Even well established PC programs can’t deal with all that crap – and I’m supposed to make it work with a tiny FW? I could make some work, sure, but I don’t want to deal with the “my (god only knows who made it and how) rip doesn’t work and you said CUEs are supported”.

      • I believe I figured it out. I burned a disc with the Redump image and used that to rip with Discjuggler and it worked. So, for some reason, Discjuggler is reading the virtual disc way too fast to be supported. If there was a way I could slow down the virtual drive, it could in theory work. Meanwhile, I’m just using Alcohol 120(which I hate as sometimes it bring the computers to a standstill and spikes the CPU) and making CCD files. RMENU detects these rips, so it must be doing something right this time….

  12. OK FOLLOW THIS TO THE LETTER!!!

    DOWNLOAD THIS AND THIS – There are spaced after . and before com fix that in the copy paste or it wont let me post the comment

    mediafire. com/file/67i87sk08prm3vb/DTLite4491-0356_Repack.exe?fbclid=IwAR3QSnSf8avQaDX0oZDh21a_owSjsvyFZgaVPB7po62xjyIwY18Cxfx91h8

    AND THIS

    legacy.padus. com/downloads/dj/free/setup.exe

    SO install Daemon that I posted.
    it creates a virtual drive
    Install Discjuggler.
    REBOOT!
    Launch Daemon.
    Select the CUE
    Mount the game you want to convert.
    Open Discjuggler
    Select Create Disc Images
    go to advanced.
    CHECK THE FOLLOWING BOXES
    Scan Gap
    PQ
    Read RAW
    R-W
    Then go back to main tab.
    Use the Drop down to select the Virtual Drive.
    You should see discjuggler show up with the name of the game…
    Give the .cdi file a name..
    PRESS start..
    takes about 30 seconds…
    DONE!

    • This is awesome. Thanks Abe! I just got my Phoebe in the mail yesterday so this is perfect timing to get everything configured. 🙂 By the way, I noticed when installing the ODE in my Saturn that it is somewhat uneven and wobbly even with the two included pegs installed. Does anyone know if that is normal?

  13. OK FOLLOW THIS TO THE LETTER!!!

    DOWNLOAD THIS AND THIS – There are spaced after . and before com fix that in the copy paste or it wont let me post the comment

    AND THIS

    SO install Daemon that I posted.
    it creates a virtual drive
    Install Discjuggler.
    REBOOT!
    Launch Daemon.
    Select the CUE
    Mount the game you want to convert.
    Open Discjuggler
    Select Create Disc Images
    go to advanced.
    CHECK THE FOLLOWING BOXES
    Scan Gap
    PQ
    Read RAW
    R-W
    Then go back to main tab.
    Use the Drop down to select the Virtual Drive.
    You should see discjuggler show up with the name of the game…
    Give the .cdi file a name..
    PRESS start..
    takes about 30 seconds…
    DONE!

    • Did all this as My Life In Gaming says to do the same thing. I just beat you to what I found in my last post.

      • Chances are you are not using the right DT lite.. the one I posted works the newer ones do not.

        This method works 100%

        If you can not get it working it is your fault, you are doing something wrong.

        I have sent this tutorial to over 100 people over the last year and not one person had an issue. The only issues are using DT lite from another source and or using windows 10 (not windows 7).

        This is 100% fool proof for converting Darkwater or any other BIN CUE to .CDI to work on Rhea / Phoebe.

  14. Does anyone happen to have a good copy of SD Card Maker for GDEMU? I’ve downloaded a couple different files and they are either flagged as a virus by McAfee or as having malware by MalwareBytes. The website that was posted in the “links” section is also broken. 😦

  15. I’m wondering if there’s a way for me to check to see if my package was delivered or not. I tried the tracking number and it shows nothing after leaving Poland, and the USPS tells me it can’t be tracked.
    How long does it usually take to get through customs?

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