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  1. WTB 1Mx1 DIP-18 DRAM Large Quantity

    Looking for some extra RAM for my Bocaram card. The more the better. Let me know, thanks
  2. Nope, ride or die

    Nope, ride or die
  3. Agree 100%

    Agree 100%
  4. Fair point. The two ST-225s that I've had...

    Fair point.

    The two ST-225s that I've had since back then are still stable, one has 0 bad blocks and the other has 3, but each one is only a single sector on 3 different tracks. Granted my sample...
  5. I would think after 30 years they've probably...

    I would think after 30 years they've probably creeped as much as they're going to creep, no?
  6. Some modern drives actually produce WORSE quality...

    Some modern drives actually produce WORSE quality burns at 1x. They often don't have optimized write strategies for such speeds anymore
  7. I'd be interested in the alignment disk,...

    I'd be interested in the alignment disk, depending on your asking price
  8. Pictures would certainly help. What you're...

    Pictures would certainly help. What you're describing is pretty unusual
  9. As I said in my previous post - that is entirely...

    As I said in my previous post - that is entirely contingent upon the writer's firmware and the blank media itself. The readers don't "know" what speed the disc was burned at, only relevance of burn...
  10. Do you own an EPROM programmer? I'd try pulling...

    Do you own an EPROM programmer? I'd try pulling the BIOS ROMs and dumping them to see if they are still good. Or just burn a new copy of MR BIOS or something and stick it in there and see if it boots
  11. The answer is complicated. Really old drives will...

    The answer is complicated. Really old drives will generally read CD-R just fine but will completely choke on CD-RW. However, the CD-R media and burn quality needs to be up to par for the older drives...
  12. annnnd replacing U10 fixed it... WTF over so...

    annnnd replacing U10 fixed it... WTF over

    so should I just replace the last 3 DIPs since I'm almost there and the results seem to indicate a possible multiple failure? or just leave U10 and revert...
  13. I've now replaced U1 U2 U50 and U51. These all...

    I've now replaced U1 U2 U50 and U51. These all could correspond to bits 6,7. No effect on the text corruption in DEFRAG. I'm probably going to try replacing the other half of the memory chips, but...
  14. Finally located a double sided TM848E and it's on...

    Finally located a double sided TM848E and it's on the way. Assuming it arrives safely I'll resume work on the DSDD 8" profile immediately
  15. Thread: Disks

    by maxtherabbit
    Replies
    11
    Views
    504

    joking aside, how much investment do you think we...

    joking aside, how much investment do you think we would be talking about to retool to make magnetic tape and disk media?
  16. Transfer speed is the same, just the seek times...

    Transfer speed is the same, just the seek times are improved.
  17. eh I 'll consider it. I have a big boy vac...

    eh I 'll consider it. I have a big boy vac desoldering pump so removing them isn't the end of the world
  18. ok new information - I was able to reproduce an...

    ok new information - I was able to reproduce an instance of the original error with the daughterboard removed so the problem is indeed on the card itself.

    I also discovered a sure fire way to...
  19. the two screenshots attached to the OP are two...

    the two screenshots attached to the OP are two different instances of the test failing, so I'd say no but same range
  20. CHROMA ATE INC. Model 3201A

    CHROMA ATE INC. Model 3201A
  21. To the best of my knowledge, 4 pin external...

    To the best of my knowledge, 4 pin external battery headers never apply charging current. They are designed to be used with primaries only
  22. So the plot may have thickened. I'm hesitant to...

    So the plot may have thickened. I'm hesitant to declare this as fact due to the highly intermittent nature of the problem, but the problems appear to have gone away when removing the daughterboard. I...
  23. Socketing them is out of the question. There is...

    Socketing them is out of the question. There is not enough vertical space for the daughterboard chips/sockets and chips + sockets on the main PCB.

    I went ahead and purchased a DRAM tester after...
  24. See the 4 pin header footprint labeled "battery'?...

    See the 4 pin header footprint labeled "battery'? Populate it and use it.
  25. Thanks! So looks like I'm going to have to catch...

    Thanks! So looks like I'm going to have to catch an error with the diags disk.
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