Recent content by lobust

An interesting data point - unfortunately I didn't document much of it - I did exactly what you've done here a couple of years ago with a SCSI2SD v6. What stands out to me is that I got the same results as you through the SEIV, but my native reads were significantly slower than yours at ~2800 I...

That's good! I wonder if you have a flashed PC video card of some description in there? Some of those don't work properly in framebuffer mode during boot...

It's certainly possible, but I don't think I would jump to that conclusion if the early boot is failing... If the video error is present on the OF prompt or the startup manager screen then it would certainly indicate a gpu fault... Idk if verbose or single user would work, I think this screen...

That error simply means that the system software is not bootable, generally because the installed system is for different hardware. Nothing to do with the graphics card.

What happens is that any deviation from perfect roundess of the commutator causes the brushes to bounce, which in turn causes them to arc. That's why this job is typically done on a lathe.

As someone who has worked quite a lot with industrial brushed motors, I feel obliged to say that this method of cleaning the commutator is likely to dramatically shorten the life of the brushes, and is liable to be quite a short-lived repair of the commutator itself. I don't mean to rain on...

I re-read the op three times and still don't understand what op is trying to acheive. However, it reminded me of, and prompted be to go looking for a previous thread created by op - https://68kmla.org/bb/index.php?threads/recent-excavations.50518/ It appears that op's mentions to defor are in...

The first computer I ever bought with my own money was an SE, bought second hand on a very tight budget some time around 1992. My mum used it to write letters after I upgraded, and my younger sister used it for school work after I left home in 1997. I guess it was finally retired some time...

Not exactly the same card, but this suggests otherwise: https://longview.be/mirograph-chroma-v33a.html

Yep it seems I arsed that up a bit! Hopefully I can find that page again... Here it is: https://www.cnwrecovery.co.uk/intermedia/intermedia_technical_development.html

I've never heard of it, but this is somehow related. The card in the picture also has ARTETCH-2 on the silkscreen and the eeprom stickers are the same style. The author seems to like sharing information and there is an email address on the home page... Edit: This seems to be the same guy, in...

Yes to all the above, I guess I'll just bite the bullet and get to work on it!

I normally would of course, just that there's nearly 30 caps on this board!

That would make sense! If the consensus is that the cpu doesn't look obviously borked, then I'll remove all the old caps and give it another clean and see if it at least doesn't trip the PSU at that point.

I don't see any touching legs, but there are potentially many faults with this logic board, there were clearly mice in there but after I washed it it looked salvagable. I have two boards like I said, this one is actually the cleanest, the other one has a lot of corrosion especially in the simm...