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One please

The IMC question was speculative on my part - if the cpu has a slightly weak/elderly integrated memory controller it may be okay for two sticks but unstable with four. Checking the forums out, this can indeed be an issue, more so if the ram is being overclocked, but also at stock. What is your cpu? ...

Try 24hrs Prime95 on Blend? Since you don’t know which (if any) component is flakey, Blend will test all of them. If it throws up errors, the culprit FFT size will help track down if it’s memory/cpu etc... Then try individual sticks if it looks like memory. How long did you run memtest for (and I pr...

May be as well to check the voltage supplied to the memory as well. If your bios is selecting that from the new memory’s profile as well, and it’s only asking for 1.35V then the old stuff won’t be happy...

Just to muddy the waters slightly... Back in the early 90s, I managed to get hold of several System 3s and 8-10 Atoms that the Experimental Psychology Dept in Cambridge didn’t want any more. These were all just bog-standard machines, not custom oem jobs. I remember one of them stood out because it h...

Try googling “trigger finger” and “tendon nodules” to see if they match your symptoms.

I'm always on the look out for a Acorn SCSI podule to get RISCiX going on my A310... [-o< Did they do a RJ45 ethernet podule that works under RISCiX ? Highly unlikely. Your easier option is to either get a 10Base5 to RJ45 transceiver or a switch with both 10Base2 and RJ45 ports. I can confirm that ...

There are a few reports out there. Apparently Seagate (so presumably the others as well) saw a huge spike in demand for enterprise-class drives as all the cloud storage etc geared up for a massive data spike due to people working from home. This came at a time when all the manufacturers were either ...

Liberated from Acorn after they bit the big one. Never got round to giving it a go...

It came on 7 floppies. Acorn format floppies are archived as ADFs. The Zipped files went on individual DOS format discs.

This rings a lot of bells, mainly from being drunk a lot with Acorn/ARM people around that time. Given the author’s style, I’d hazard a guess as to their identity if I didn’t know how rabidly anti-Wintel they were. Can’t remember how far things got. ISTR it spawned the Hydra board from Simtec and Ta...

ISTR we never got a reply from the admins re suitability for upload.

Not archived them yet. Probably should before bit-rot sets in. From what I remember, Z80 disc format is really just a big CPM file on a 80T DS floppy, so should just be a matter of copying under DFS to a dsd image on a Gotek?

It's all back together (something of a marathon), and it all seems to be functioning okay.

Sadly, one of my Pi zeroes seems to have lost its GPIO inputs, so it's completely useless for any of my expansions. That's something of a luxury worry though!

Crisis (hopefully) averted. It looks like it’s a problem with the “nut behind the keyboard”. It’s a new power connector, which most likely wasn’t making a contact with ground - the clue was that even the uhf modulator shield was at 5V relative to the barrel of the power connector! So all being well,...

I've just done a very foollish thing. In a moment of distraction I managed to connect the power supply to my Atom with the wrong polarity. It's now dead as a doornail. I've removed and reversed all the expansions (AtoMMC, YARRB, noisekiller, tube, hdmi - dread to think what it's done to those), but ...

Hard to say whether Hermes damage goods or not, considering that in the 13 years I've lived at my address they've managed to deliver to me precisely twice. All other deliveries have had a variety of excuses for why they can't come to my address, and have eventually returned to sender for a refund. N...

Risc pc yep, Also involved with Meridian Hi-Fi (funny the 5 and 6 series meridian hifi is about same footprint as rpc). Talented bloke :) There were quite a few similarities. The A4 had *exactly* the same footprint as the M60/DSP5000 speakers. Has to be said, though, that the 500 series still looks...

So is the Meridian sound system in my Range Rover Evoque from his company? Apparently so. Should make for an interesting paradox: which will win - Meridian’s tendency to almost never break (9 pieces of Meridian kit for over 20 years, 8 of which are still functioning as new and one has had capacitor...

Amiga 500. Boxed, with mouse and load of manuals/discs. Plus 3 month warranty. It's a bit much when Cash Converters is cheaper than Ebay! It's a bit yellow and dirty, so it's in the process of being stripped down for a thorough clean, which also revealed an unadvertised 512Mb memory expansion. That'...

If there's a way to do this, armed with nothing but the original floppy, a 5.25" drive, and a Gotek I'm more than happy to give it a go.

Just ordered an A500, so would be interested in one as well.
Probably ought to get a 2MB upgrade as well.

It's now working.
The Sound checkbox *was* present , but didn't solve the problem.
Turns out that Raspbian doesn't install Pulseaudio as standard.

I've deleted the original installation because I've just discovered PINN, which lets me install other fun stuff as well. However, I'm 99% certain there wasn't a Sound box in Settings, just a grey space where it should be. I'm going to try again today, which will show if I'm phenomenally unobservant....

I discovered this morning that I can dual boot RiscOS and Raspbian, using NOOBS, and this is now running fine. I've downloaded RPCEmu and successfully installed this into my new Raspbian installation, and it works fine. Except there's no sound. Raspbian itself produces sound fine - I can hear youtub...

The bottom one looks rather like the DIY Beebug programmer. The construction and software were detailed in the magazine:

http://8bs.com/othrdnld/beebug/scans/BeebUGv0404.zip

Popular with pirates, by any chance?

I was looking for instructions for doing that to the cost reduced motherboard but haven’t found any yet. The main problem for me would be making the cable - not my skill set. I did see someone used to sell a plug and play mod with a cable (http://www.amibay.com/showthread.php?81700-VIC20-VC20-Plug-...

Lardo Boffin wrote: ↑

Mon May 18, 2020 8:53 pm

A very nice VIC 20

Is there any other sort? Don’t know why I have such a soft spot for these.
If you haven’t tried it already, the s-video mod works really nicely.

I’ve picked up a few boards like that. It seems to be pretty random which chips are fitted, whether they’re soldered or socketed, or whether other blank spaces have empty sockets. Never any resistors etc fitted. Almost as if the factory started making econet-capable boards but changed their minds pa...

From reading old Beebugs and Acorn Users from the period, it would appear that the real reason for delayed release was that Acorn found it rather trickier to get the Tube working properly. Beebug from Sept 1982 lists all three 2Ps, giving provisional production dates of November 1982 for the 6502 an...

There's an article in Beebug Vol 1, Iss 6 (Oct 82) about the Tube. This refers to the 6502, Z80, and a "16 bit NS 16032 based machine", which goes along with what Acorn claimed they would be producing. It would seem there was a common perception that the 16032 was 16-bit, which was why NS renamed it...