Recent content by croissantking

On the contrary, your voltage and ram timing tweaks are pretty impressive! Getting the best results from an 060 on a wombat clearly require a lot of experimentation and refinement, throwing the cpu in and getting it to work is just the beginning.

Passing through Montreal! Any members live here?

So, I’m a 68030?

Lovely.

I don’t quite see how they could stop you using it on a IIcx - it seems like more of a recommendation.

I’ve never heard of any problems with 68k Motorola chips with XC prefixes. I think most of the ones Apple shipped were labelled XC, since the validation process could take quite some years.

They said that it would take 1 trillion years at current rates, but because the rate keeps changing it would take forever.

Oh, I should probably do this. The PSU is isolated from the case because it’s on a 3D printed stand-off.

😂 😂

That your upload helped, or that the finding is useful? :) In general, have we figured out how the ratio selection works? I’m guessing it would be possible to create a utility that calculates code for the EEPROM with options for cache size and ratio at a given clock speed.

Thank you for providing these, I used the Wallstreet EEPROM on my heavily modded iMac/233 CPU board so it would recognise the full 1MB cache I'd soldered on. Note the following findings for cache ratios: CPU Speed (MHz) Bus Speed (MHz)Cache Ratio 300662:1 3001003:2 (see photo) 3501002:1

Here's my finished PSU rebuilt – tested and perfectly working. it's amazing how, presumably just by coincidence, these Mean Well units feel like they're almost perfectly designed for the LC PSU housings. With thanks to @Yodd for sharing their excellent mounting plate design, which I got printed...

Quick tip when rebuilding a Dyna Comp, keep the heatsink/bracket from the original PCB, shorten it and reuse it so that the top cover can screw in on both ends.

This is what @Phipli meant when he said PCI USB Option.

The HD sounds like a Quantum with stuck heads due to a sticky bumper.