LGR – PC Turbo Buttons

42 thoughts on “LGR – PC Turbo Buttons

  1. To clarify further: the turbo button does not overclock your CPU or make it go faster than its intended speed. Even if pressing your turbo button made things faster, that just meant it was allowing you to use your normal CPU speed. The initial function of the turbo button is just a matter of which method the PC booted up in: turbo enabled or disabled. This is what I talked about with the BIOS settings at 03:15.

    It made sense to have the default boot setting be "turbo disabled" for most manufacturers, because otherwise you'd have lots of people using their computer at a slower speed all the time, not knowing they had to press the turbo button to run with the advertised performance!

    Turbo buttons are no longer needed because programmers stopped designing software that depended on clock speed to run correctly, and people by and large stopped using older software that still did. There are exceptions to this of course, but for the most part the turbo button ceased being a requirement due to popular software of the late-90's running fine on any CPU. Nowadays, there are games that depend on frame rates to run their physics correctly, but this is another issue entirely.

  2. I had an older computer and I remembered that when the turbo button was off the game I was playing would run faster as opposed to when it it was off

  3. It makes sense if you think the turbo is normally on but by pushing it you turn it off. The light is on to indicate the turbo is off, to get your attention as to why your computer is slow.

    Ok that's stretching it. It is poor design.

  4. I always thought it would be funny to be a pc case designer and to put buttons on the case that will light up when you press them but otherwise do nothing but label them like they have an actual function/purpose. Turbo in a car does increase power but there is a noticeable decrease in fuel efficiency. I used to own a twin turbo 3000gt vr4 and upgraded the engine a bit to use super high octane fuel and when i really floored it you could watch the gas gauge drop in real time, could go through a whole tank of gas in like 5 minutes.

  5. I remember the 7-segment LED clock speed displays. They were jumper-configurable, you could make them read anything that a 7-seg digit could display!

  6. Really Model 5150?
    48 hour psyche hold?
    Kinda like the mental brain trust that decided to call themselves after a Mexican word for 'idiot'

  7. My first PC had one of those speed displays. (And 40Mbyte disk.)
    Of course, it didn't actually measure the frequency. There were jumpers that set what was displayed. You could have made it say anything.

  8. Took a minute to think with the mechanic side of my brain. But I wonder if they called it Turbo because a turbocharger actually “compresses” the air before it enters the intake for more power. So would it make sense that the Turbo button is “compressing” the speed thus bringing down to a lower MHz to allow these games to be played?

  9. I remember the turbo button on my old pic chaged the clock from 25 to 66. And that was top spec back then

  10. Thanks for answering this question I've been wondering for the past 25+ years! I never had a Turbo button, but I did have friends who did, and nobody ever knew what it really did. Obviously the assumption was that it made the computer run faster, so the typical thing to do was to have it on all the time. Funny how we never noticed any increase in performance.

  11. I got an X-box style controller for christmas that came with a turbo button that emulates me hitting the button 60 times a second or something.

  12. Back then turbo meant everything… Turbo on your car wheels meant crazy fast even if it wasn't 🙂 the turbo era lol.

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