Probably well over the 50% simple statistics would predict...a colleague of mine always managed to pick a faulty board out of a new prototype batch, even when that would be the only bad one in a build of 10-20 boards...rubber_jonnie wrote: Fri Mar 06, 2026 11:30 am I have to say it's a good job they supplied 2 switch units, but what are the chances of me picking up the bad one and installing it first!!!
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A PS1 surprise
Re: A PS1 surprise
- rubber_jonnie
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Re: A PS1 surprise
Yeah, it's just one of those things where you are magnetically attracted to the bad un.JezC wrote: Fri Mar 06, 2026 11:39 amProbably well over the 50% simple statistics would predict...a colleague of mine always managed to pick a faulty board out of a new prototype batch, even when that would be the only bad one in a build of 10-20 boards...rubber_jonnie wrote: Fri Mar 06, 2026 11:30 am I have to say it's a good job they supplied 2 switch units, but what are the chances of me picking up the bad one and installing it first!!!
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It's funny, over the years I've always done well with cars, never had a terrible time with them (Sorry @mrbombermillzy ) even when all I could afford were bangers, yet I've had friends who have had nothing but trouble with theirs, breakdowns, total engine death, some sort of weird electrical issues etc.
Thankfully these days I'm able to buy new and benefit from warranties and such like but it would still be possible to get a lemon!!!
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...
- HigashiJun
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Re: A PS1 surprise
Isn't that called Murphy's law ?...
- rubber_jonnie
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Re: A PS1 surprise
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...
- stephen_usher
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Re: A PS1 surprise
Sod's law says 100% probability.rubber_jonnie wrote: Fri Mar 06, 2026 11:30 am I have to say it's a good job they supplied 2 switch units, but what are the chances of me picking up the bad one and installing it first!!!
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.
- rubber_jonnie
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Re: A PS1 surprise
Indeed, the law of Sod does tend to take over in situations like these.stephen_usher wrote: Fri Mar 06, 2026 1:45 pmSod's law says 100% probability.rubber_jonnie wrote: Fri Mar 06, 2026 11:30 am I have to say it's a good job they supplied 2 switch units, but what are the chances of me picking up the bad one and installing it first!!!![]()
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...
- mrbombermillzy
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- Joined: Sun Jun 03, 2018 7:37 pm
Re: A PS1 surprise
You dont know the half of it Jon.rubber_jonnie wrote: Fri Mar 06, 2026 11:57 am It's funny, over the years I've always done well with cars, never had a terrible time with them (Sorry @mrbombermillzy ) even when all I could afford were bangers, yet I've had friends who have had nothing but trouble with theirs, breakdowns, total engine death, some sort of weird electrical issues etc.
I once borrowed a pushbike off my mates mum to get to work and the front wheel seized and snapped off its spindle halfway there.
I try to keep myself to vehicles I have at least a chance of repairing (i.e. the less sensors the better and simpler built if poss).
- rubber_jonnie
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Re: A PS1 surprise
Yeah I was thinking earlier that as time progresses the harder its become to do your own fixing when stuff breaks.mrbombermillzy wrote: Fri Mar 06, 2026 8:02 pmYou dont know the half of it Jon.rubber_jonnie wrote: Fri Mar 06, 2026 11:57 am It's funny, over the years I've always done well with cars, never had a terrible time with them (Sorry @mrbombermillzy ) even when all I could afford were bangers, yet I've had friends who have had nothing but trouble with theirs, breakdowns, total engine death, some sort of weird electrical issues etc.
I once borrowed a pushbike off my mates mum to get to work and the front wheel seized and snapped off its spindle halfway there.(Ive placed a smilie, but this is *not* any kind of joke).
I try to keep myself to vehicles I have at least a chance of repairing (i.e. the less sensors the better and simpler built if poss).
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...
- mrbombermillzy
- Moderator

- Posts: 2347
- Joined: Sun Jun 03, 2018 7:37 pm
Re: A PS1 surprise
I'd say its not so much the fixing, but more like 'diagnostic obfuscation'.
When I was working for a Dell laptop refurbishment company, the guy who used to do the HW repairs explained that even the mainboard ICs now are built with obfuscated lines/pins that either pretend to do something, or dont work as expected.
When I was working for a Dell laptop refurbishment company, the guy who used to do the HW repairs explained that even the mainboard ICs now are built with obfuscated lines/pins that either pretend to do something, or dont work as expected.
- rubber_jonnie
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Re: A PS1 surprise
Well just look at some of the modern mainboards. Applle, Dell and others, the boards are black with no easily discernible pads and BGA IC's where you can't even see the legas as they're underneath. Also Apple build their laptops more like phones these days with super dense multi-layer boards that only a full diagnostic test rig could have any chance of figuring out what the issue is.mrbombermillzy wrote: Fri Mar 06, 2026 10:23 pm I'd say its not so much the fixing, but more like 'diagnostic obfuscation'.
When I was working for a Dell laptop refurbishment company, the guy who used to do the HW repairs explained that even the mainboard ICs now are built with obfuscated lines/pins that either pretend to do something, or dont work as expected.
Then they've got you stuck in their ecosystem. Modular parts, even including the mainboard or whole machine replacement.
Saying that, the build quality and reliability of Apple stuff is top notch, so it's a choice. If I hadn't spilled a drink on my Macbook Pro M1 I'd still be using it, but with the screen stains and keyboard sagging a bit in the middle (Once you pull the rivets out it's never the same), it was time to replace. It was nearly 5 years old and running like a champ though. Even the battery was good.
Apple have just released a new Macbook, the Neo and that is actually based on the same CPU as the iPhone. Oddly low specced but great build quality like the other Macbooks and very cheap for what it is IMHO.
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...