Hi!
My name is Robert and I am working at my Atari since 1985.
Mostly I repair Ataris from my friends and make some hardware for my Atari ST.
One of this project was the "More than 8 MHz inside your Atari ST".
It was a project to increment the mainboard frequency from 8 MHz up to - in most cases - 12 or 12.5 MHz of your Atari ST.
https://www.newtosworld.de/viewtopic.ph ... 191c78f3f1
If you have some trouble with this old hardware, don't hesitate to contact me.
If you got a look to my forum name, you see the relation to this old project.
Regards Robert
Introducing myself
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PhilC
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Steve
- Posts: 3305
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Re: Introducing myself
Hi Robert,
I downloaded your 12mhz zip file, I am very intrigued but I don't speak any German. Do you have an English translation available?
Also, does running the motherboard at 12mhz greatly benefit speed and benchmarks, I assume it would be very good! Is it stable?
Thx
I downloaded your 12mhz zip file, I am very intrigued but I don't speak any German. Do you have an English translation available?
Also, does running the motherboard at 12mhz greatly benefit speed and benchmarks, I assume it would be very good! Is it stable?
Thx
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rubber_jonnie
- Site Admin

- Posts: 14888
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- Location: Essex
Re: Introducing myself
:welcomewave:
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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mrbombermillzy
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- Joined: 03 Jun 2018 19:37
Re: Introducing myself
Robert, it looks like you've found your new home. Welcome! :welcomewave:12-MHz wrote: 25 Jun 2022 07:10 Mostly I repair Ataris from my friends and make some hardware for my Atari ST.
One of this project was the "More than 8 MHz inside your Atari ST".
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BigSteve
- Posts: 32
- Joined: 25 Jun 2022 14:55
Re: Introducing myself
Hi Robert,
As a fellow newbie that will be playing with Mhz shortly.... why 12Mhz and not 16? Some constraints I am going to run into...?
As a fellow newbie that will be playing with Mhz shortly.... why 12Mhz and not 16? Some constraints I am going to run into...?
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DoG
- Posts: 1298
- Joined: 07 Apr 2018 12:26
Re: Introducing myself
I haven't read the document so I don't know for sure, but I think it's the bus speed he is changing?BigSteve wrote: 25 Jun 2022 15:08 As a fellow newbie that will be playing with Mhz shortly.... why 12Mhz and not 16?
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stephen_usher
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- Posts: 7376
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- Location: Oxford, UK.
Re: Introducing myself
:welcomewave:
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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