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Thread: Why is my Tandy 1000hx not running at 7.16 MHz?

  1. #1

    Default Why is my Tandy 1000hx not running at 7.16 MHz?

    Everything I have read online says that the Tandy 1000hx runs at 7.16mhz and can clock down to 4.77mhz. However, mine definitely seems to run at 4.77mhz. When I run Tandy DOS's 'mode fast' it says it's already running in fast mode. If I run 'mode slow' it just gets slower. I cannot get the darn thing to run at 7.16 MHz. Could any 1000 owners shed some light on this? Is there a hardware switch?

    By the way, I am using cputest to check my running clock speed, as I have no other way to do so.

  2. #2
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    Grab TOPBENCH from dosbenchmark.wordpress.com and test your system with that. Do B)enchmark -> R)ealtime from the main menu and see where your system lies. Try it with both mode fast and mode slow.
    Offering a bounty for:
    - The software "Overhead Express" (doesn't have to be original, can be a copy)
    - A working Sanyo MBC-775, Olivetti M24, or Logabax 1600
    - Music Construction Set, IBM Music Feature edition (has red sticker on front stating IBM Music Feature)

  3. #3

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    What a brilliant program! Well, I have egg on my face, since the program shows that I match the Tandy 1000 EX, which is just about right, as that system also is a 7.16 MHz system. Thanks for the tip!

  4. #4
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    Glad you could verify it. What about the HX led you to believe it was slow? Slow game, perhaps?
    Offering a bounty for:
    - The software "Overhead Express" (doesn't have to be original, can be a copy)
    - A working Sanyo MBC-775, Olivetti M24, or Logabax 1600
    - Music Construction Set, IBM Music Feature edition (has red sticker on front stating IBM Music Feature)

  5. #5

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    I watched this YouTube video: https://youtu.be/df5iAbsuDBo , in which the gameplay on fast mode was much faster than what I observed in my system. I'm embarrassed to admit that I neglected to notice that she was using a 1000 TX.

  6. #6
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    A 1000 TX is roughly 2.1x faster than a 1000 HX.
    Offering a bounty for:
    - The software "Overhead Express" (doesn't have to be original, can be a copy)
    - A working Sanyo MBC-775, Olivetti M24, or Logabax 1600
    - Music Construction Set, IBM Music Feature edition (has red sticker on front stating IBM Music Feature)

  7. #7
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    As an EX owner I can confirm that, yes, the first gen "Turbo 1000s" (SX, EX, HX) take their own sweet time. You forget how sluggish the 8088 was relative to its clock speed even compared to the 286. Just this week I got my homemade Plus memory card working so I can try out some of the games that wouldn't fit in 256k, and I have to admit it's slightly disappointing to discover that it really is just a little too slow to do some of the more memorable Tandy graphics/sound programs justice. You can pretty much go make a sandwich in the time it takes to launch Sierra's "Hoyle's Book of Games", and then savor nice leisurely bites of said sandwich in the time it takes for your computer opponent to move once you've launched a game.

    (Many many moons ago I ran the game on a TX, and I recall that as being "fine". Probably nothing to write home about, but fine. Maybe my memories of it are a little rose tinted.)

    Oh well, I still love it.

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