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About Swim

  • Rank
    Chopper Commander
  • Birthday 04/01/1947

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    Staten Island
  • Interests
    Ti/Geneve, Aquaculture

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  1. How far are you from a decision? Weeks? Months? Is the "bare board only" still an option? I know you have the Genie 2.0 project going too so it's a time jam I'm sure.
  2. There are a few design problems with this controller card like many designs problems don't exist until the design makes it out into actual use. The 10K resistor location next to the heat sink at the bottom right corner needs to be placed away from the back edge of the card as it often gets knocked off when the card is inserted into the P-Box. I can't tell you how many of those I replaced for TIers that often swap cards in and out.
  3. This is a pic of the IDE controller with compact flash that has been running 24/7 for almost a decade in the Hidden Reef BBS P-Box and holds the up/down load files.
  4. Check with Ksarul on this as I recall he started a thru hole project for this IDE controller a year or two ago.
  5. Hi matthew180, the BQ4852YMC-85 carries the 512k SRAM on board so there is no need for a 512k SRAM at location IC23.
  6. Hi Fred, there is supply of BQ4852YMC-85 but Rochester electronics instead of no longer available Texas Instruments. https://www.digikey.com/product-detail/en/rochester-electronics-llc/BQ4852YMC-85/2156-BQ4852YMC-85-TI-ND/11538020
  7. My favorite solution for the IDE has always been the bq4852YMC-85 like the one listed here. The TI has gone obsolete but the Rochester one is still available. https://www.digikey.com/product-detail/en/rochester-electronics-llc/BQ4852YMC-85/2156-BQ4852YMC-85-TI-ND/11538020
  8. Looking forward to getting an assembled version for my SNUG sys. The monitor I have on it now has started rolling when it's cold.
  9. Will this be a parts kit or prebuilt unit? Just curious was it the capacitors that went bad on the monitor?
  10. If it's just the 4464's you think are bad you might be able to test the two socketted chips in your programmer and see if they are good. If they test good and you have to desolder the other 4464's don't forget to heatsink the chip temporarily while desoldering. Then once you have the chip out you can install sockets to make things easier in the future if problems return.
  11. I agree, I also understand the limits of today's SNUG. They got overwhelmed by the USA market for the SGCPU series. They were not that many people to begin with and certainly not in existence as a business. I seem to recall one SNUG member getting over a hundred e-mails in one day. Some wound up burned out and I'm not sure how many members make up the club today or if the club still meets. I wish SNUG ASCSI2 DSR code weren't proprietary and could be made available to trusted TIer's. I have an ASCSI2 sitting here that I got for repair and about 3 WHT "G," which is also proprietary, with fried programmable logic needing repair. At one point I was told I would get some PLD's in a shipment of the EVPC2 cards when they came out but that shipment never came to pass. I still have some Lattice IspLSI 2064A chips I ordered for the "G" cards at the time. My last contact with SNUG was when I sold the remaining SNUG SPVMC stock I had in the USA here on AA.
  12. There was a working relationship between WHT and SNUG that resulted in the 1.6 upgrade for the WHT series and the ASCSI2. I'm not familiar with developments post the 1.6 upgrade and Gazoo's SCSI boot and MDOS tweek for PDMA.
  13. Have you checked the SNUG site? If it's not listed there send Harald Glaab an e-mail as he might be able to point you in the right direction.
  14. FWIW a solid state storage solution the SCSI2SD device has proven successful. I have recently acquired this version 6.0 device for my SNUG system and so far it's working no problem but as with all things TI/Geneve your mileage may vary. Can be powered 5v or USB. I added the 25 pin SCSI 1 to 50 pin adapter.
  15. If your "G" has the 1.6 upgrade that looks like the card in the pic above and you are able to boot from the SCSI BOOT EPROM intermittently I agree that the storage setup/device you are using is the next place to look. I've never tried your setup myself as we mostly just used SCSI 1 internal hard drives, SyQuest EZ-135 and ZIP drives with the cards during that 1998 - 2004 period. Also SCSI 1 internal CD ROM players were used when Wolfgang's CD Commander software came on the scene.
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