Image Map Image Map
Page 3 of 3 FirstFirst 123
Results 21 to 25 of 25

Thread: XTIDE Device Compatibility List

  1. #21
    Join Date
    Feb 2017
    Location
    Chilliwack, BC, Canada
    Posts
    529

    Default

    Quote Originally Posted by Eudimorphodon View Post
    That's probably good enough, then.

    Those Unigen cards really screwed me. I probably would have noticed how flaky they were sooner and made the connection if I'd set them up from scratch in the machines and *hadn't* also been in the middle of general hardware QA on the new boards. But instead I got the "brilliant" idea, since they were just exactly the right size to do it and the cards seemed nifty and fast, of using DD on the unix box to clone the working DOS install I had on the CF-SD adapter over to the pair of 2gig cards. Despite how obviously flaky they look under the microscope the fact that they flip bits on the regular can *mostly* go unnoticed, or at least not be obvious to pin on the CF card. Stuff will just crash at random well after it was loaded into memory and you'll pull your hair out and start howling about what *must* be wrong with your RAM board. Sigh.
    I wonder how many Cisco cards are just badged from other brands. It doesn't surprise me at all that this happens, but I wonder if they've got multiple brands under those labels and some of them might work better than others.
    My vintage systems: Tandy 1000 HX, Tandy 1000 RSX, Tandy 1100FD, Tandy 64K CoCo 2, Commodore VIC-20, and some random Pentium in a Hewitt Rand chassis...

    Some people keep a classic car in their garage. Some people keep vintage computers. The latter hobby is cheaper, usually takes less space, and is less likely to lead to a fatal accident.

  2. #22
    Join Date
    Feb 2017
    Location
    Chilliwack, BC, Canada
    Posts
    529

    Default

    Quote Originally Posted by dJOS View Post
    Im using r620 XTPL edition on my v20 equipped EX, running DOS 5.0 and my CF-IDE is running in 8-Bit BIU mode:

    DiskTest, gives me the following results on my:

    4GB Seagate ST1 MicroDrive:

    XT-IDE ID: ST640211CF
    Write: 334.37 KB/s
    Read: 525.14 KB/s
    8k Random: 13.5 IOPS
    Sector Random: 18.5 IOPS


    1GB no-name Flash Drive:

    XT-IDE ID: CF Card
    Write: 266.32 KB/s
    Read: 441.38 KB/s
    8k Random: 12.7 IOPS
    Sector Random: 18.8 IOPS
    Attachment 57928
    That Seagate microdrive is surprisingly fast.
    The no-name CF card should say "Memory Technology Company" on the back. I think they're based in Taiwan.
    My vintage systems: Tandy 1000 HX, Tandy 1000 RSX, Tandy 1100FD, Tandy 64K CoCo 2, Commodore VIC-20, and some random Pentium in a Hewitt Rand chassis...

    Some people keep a classic car in their garage. Some people keep vintage computers. The latter hobby is cheaper, usually takes less space, and is less likely to lead to a fatal accident.

  3. #23
    Join Date
    May 2011
    Location
    Outer Mongolia
    Posts
    2,045

    Default

    Quote Originally Posted by blackepyon View Post
    I wonder how many Cisco cards are just badged from other brands. It doesn't surprise me at all that this happens, but I wonder if they've got multiple brands under those labels and some of them might work better than others.
    The giveaway for different OEMs is the underside; that's why I took pictures of the back. The Unigens (at least these ones) have that distinctive blue trim.

    In addition to the 128M STI flash cards that all work I have a 128M "Smart CF" card that does *not*. (I'll stick up a picture of it.) Acts just like the Unigens. It's also distinguishable from the STIs by the underside label, though not as obvious.
    My Retro-computing YouTube Channel (updates... eventually?): Paleozoic PCs

  4. #24

    Default

    Quote Originally Posted by blackepyon View Post
    That Seagate microdrive is surprisingly fast.
    The no-name CF card should say "Memory Technology Company" on the back. I think they're based in Taiwan.
    The micro drive has a huge ram cache which probably helps a lot. I’ve also found they have lower CPU overheads on my Amiga’s too.

    Here’s the back of the cards:

    IMG_5789.JPG
    My Retro Collection:
    CBM: C64, Amiga 500 x2, 600 & 1200
    Apple's: IIc, Mac SE, LCII, LC630 & Power Mac G3/233 Desktop
    PC's: K6-III+ 500 System + Roland MT-32 & Tandy 1000 EX 640kb, 3.5" FDD, CF-IDE 4GB HDD
    Visit my Tindie store for Tandy 1000 Adapters for EX, HX, SX, SL, TX & TL etc

  5. #25
    Join Date
    May 2011
    Location
    Outer Mongolia
    Posts
    2,045

    Default

    Small update on this device:

    Quote Originally Posted by Eudimorphodon View Post
    So far I still have to say that my favorite device is this 44 pin IDE to SD adapter.

    Attachment 57843
    Today I tested this device with a 32GB Sandisk SD card, and I can confirm that it works with a brand new "modern-size" card straight off of Amazon. Checkit3 benchmarks are identical to the smaller card, DiskTest 2.3 marks are interesting because the "Write/Read" speeds are nearly the same but the "8k random, 70% read:" IOPS score jumps to 31.7 IOPS compared to 14.9 for the older card. Perhaps it has a more clever wear leveling algorithm or something that kicks in for random I/O.

    Mediatest is successful through multiple runs. PC-DOS 7's FDISK program may or may not have bug because I did notice an interesting anomaly: FDISK identifies the card as being 8GB in size (not 32GB), which jives with the limitations of the PC BIOS INT13h driver, but it only seems to want to allow making an extended partition up to the 2GB barrier. Will dig into that some more. Also checkit3 completely misreports the size of the drive. (Calls it a "-166MB" drive.) I assume this would probably be the case with any too-big-for-DOS device.

    Anyway, would still highly recommend this adapter.
    My Retro-computing YouTube Channel (updates... eventually?): Paleozoic PCs

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •