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Overclocking an 8088

By Carrot ยท 10 replies
Apr 11, 2004
  1. I have an original IBM XT sat in the loft gathering dust, and I had this thought of OVERCLOCKING it :D.

    I am not sure waht speed it is currently running at, or where I might be able to change the clock settings on it.

    So, any info appreciated.

    Firstly... this is an old machine, and while working (last time I checked) I don't care if I fry it by reaching 3.0GHz :D

    I have a spare heatsink from my new P4 3.066 Prescott (the Intel stock cooler as it happens, as I am using the Tt SubZero4G). I think that and/ore the spare fridge freezer I have downstairs will be more than enough to do anything with it.

    lastly, once I have managed to successfully OC it, what software can I use to benchmarki it?

    it only has a 5MB HDD and a 360K (might be 1.2MB, but I don't thinks so) 5 1/4 floppy.

    I am upgrading my dads machine soon, and he wants a 5 1/4 built in to it, so installing software should not be a problem.

    Any ideas guys?

    I have a soldering iron and I am not afraid to use it.
  2. lzrdlps

    lzrdlps TS Rookie

    Getting to 3.0GHZ would be a real stretch, because it is only running at a whopping 4.7MHZ. You might get it to about 10-20 MHZ in its present state. But it is one of the first home use PC, and the origional cost around $4000. Good Luck, like to see what you could get it to do.
  3. MrGaribaldi

    MrGaribaldi TechSpot Ambassador Posts: 2,512

    Just a thought, but if it's in pristine condition, you might be able to pick up a pretty penny for it on ebay.
  4. Carrot

    Carrot TS Rookie Topic Starter

    lzrdlps... 3.0GHz was being a tad sarcastic :D

    It will be extremely interesting. Just need to know a bit more about options :D. As for eBay... I'll have a look.

    I have a nice Spectrum QL complete with manuals, micro dirves, software and printer. Now that is eBay material :D
  5. Carrot

    Carrot TS Rookie Topic Starter

  6. vassil3427

    vassil3427 TS Rookie Posts: 640

    If you ask me the best, and most enjoyable thing to do with that old pc, would be to pour gasoline over it, and light it up....
  7. Steg

    Steg TS Rookie Posts: 269

    Vassil has the right idea.....personally i like the idea of finding the voltage supply, and cutting the resistors/MOSFETs etc out and replacing them with jump wires.....then turn it on....hopefully it will melt....
    A friend and i managed that with a 486.....it got a tad warm....

  8. Mictlantecuhtli

    Mictlantecuhtli TS Evangelist Posts: 4,345   +11

    I think you could gain a couple of megahertz, but that's about it. Maybe to 7 or 8 MHz, not much more. Still I wouldn't burn it, but that's just me.
  9. PanicX

    PanicX TechSpot Ambassador Posts: 669

    My guess is that it wont overclock at all, hell the fastest it'll go will depend on how tall of a building you drop it off of. Or at least that's what I'd do with it...
  10. Rory7

    Rory7 TS Rookie Posts: 119

    Just keep hold of it. when were all using nano chips and have 2tetrahurt pc's, your grandson can say he has one of the first ever pc's ever. Think how popular he'll be. Think how many girls he'll get.
  11. Nodsu

    Nodsu TS Rookie Posts: 5,837   +6

    You will be able to overclock it only by a couple of MHz and the only way to do it is to replace the oscillator crystal on your mobo with a faster one. Plenty of action for your soldering iron :p
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