Seems to have, yes :)
OSI 600D Superboard Build
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rubber_jonnie
- Site Admin
- Posts: 14888
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: OSI 600D Superboard Build
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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HigashiJun
- Posts: 2381
- Joined: 19 Jun 2020 07:21
- Location: Tokyo
Re: OSI 600D Superboard Build
Good news !
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rubber_jonnie
- Site Admin
- Posts: 14888
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: OSI 600D Superboard Build
Indeed it is.
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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stephen_usher
- Site sponsor
- Posts: 7376
- Joined: 13 Nov 2017 19:19
- Location: Oxford, UK.
Re: OSI 600D Superboard Build
Yay!
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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rubber_jonnie
- Site Admin
- Posts: 14888
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: OSI 600D Superboard Build
Well, my OSI is the gift that keeps on giving...
I had it out last week to check it before Cyber Legends 4.
It was all good, ran like a champ, worked fine from the Gotek.
As soon as I set it up when i arrived, I'm just getting a screen full of random characters...
No amount of tinkering brought it back to life.
It'll be back on the bench this week, bloody annoying.
At least I know some stuff is working, I have a good character ROM, good screen RAM and likely the main RAM is fine. My money is on the monitor ROM again.
:dizzy:
I had it out last week to check it before Cyber Legends 4.
It was all good, ran like a champ, worked fine from the Gotek.
As soon as I set it up when i arrived, I'm just getting a screen full of random characters...
No amount of tinkering brought it back to life.
It'll be back on the bench this week, bloody annoying.
At least I know some stuff is working, I have a good character ROM, good screen RAM and likely the main RAM is fine. My money is on the monitor ROM again.
:dizzy:
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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HigashiJun
- Posts: 2381
- Joined: 19 Jun 2020 07:21
- Location: Tokyo
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rubber_jonnie
- Site Admin
- Posts: 14888
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: OSI 600D Superboard Build
Yeah, that's about the top and bottom of it.
Not had much time to do anything with it today. I swapped RAM about, no different, swapped CPU, no different, gave the SYN ROM socket and CPU socket a spray with contact cleaner, no different and it does the same with the CPU removed, so looking like no code is running. Same with the SYN ROM removed.
Not much time to look today and will be busy this week as on holiday next week.
:dizzy:
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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HigashiJun
- Posts: 2381
- Joined: 19 Jun 2020 07:21
- Location: Tokyo
Re: OSI 600D Superboard Build
It's quite annoying to have a working machine suddenly having issues.
Just hope you'll fix it up quickly.
Just hope you'll fix it up quickly.
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rubber_jonnie
- Site Admin
- Posts: 14888
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: OSI 600D Superboard Build
Thanks, though I think I may park it and look at it when I'm less annoyed!!!HigashiJun wrote: 13 Oct 2025 08:13 It's quite annoying to have a working machine suddenly having issues.
Just hope you'll fix it up quickly.
It's much like before, I just don't think the ROM code is getting to the CPU so nothing gets initialised. Could be something I haven't looked at yet as there are multiplexers in the mix that could be bad.
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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HigashiJun
- Posts: 2381
- Joined: 19 Jun 2020 07:21
- Location: Tokyo
Re: OSI 600D Superboard Build
Yeah, better to cool down before attempting something...rubber_jonnie wrote: 13 Oct 2025 09:10 Thanks, though I think I may park it and look at it when I'm less annoyed!!!
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