Search results

Take care running Norton Disk Doctor. It is very sensitive to what OS version you are running and can corrupt a disk as often as fix it. It is usually best to only run it in emergencies. Most of the "errors" it finds are hugely overstated. All the creation dates and bundle bits don't cause any...

In this context you don't need to worry about the difference, apple changed their naming convention over time. AppleTalk can be used over multiple types of hardware, LocalTalk specifically means using the serial ports. There isn't a practical difference between Petar using LocalTalk boxes and...

Ah, extra fun. 80MHz should be easier than usual then. A 66 card is better because they just clock double. I assume the 100 detects the speed and switches between 3x and 4x. Or perhaps runs asynchronously? Ah well, anyhow. 66 is better for now to see if that works, because we know what it is doing.

Thankfully I don't think that price is anything more than optimistic on the seller's part. We all have number keys and can mash them randomly. Never take listing prices as an item's value - always look at completed. There aren't any showing atm, but last time I saw they were selling in the $400...

First pass is mostly done, I had to stop for dinner earlier. The built in speed estimation thing needs a little calibration tweak and I need to make it load in the current settings from the extension on launch... after than I just need to do some testing to make sure everything works. I don't...

Tum te tum... Today's progress : Its less far on than it looks. I was just testing after building the XCMD I'm using to set the clock speed. Absolutely flabbergasted that it worked first time. I literally only compiled it (successfully) once. The app itself isn't function complete yet. The...

I found it! @Zane Kaminski @JDW It is a gestalt lookup. Note "More Information" in the corner describes how it works. More information also mentions that depending on the age of the computer there are also a couple of different gestalt selectors that give similar results. But anyway...

Ah, but don't forget that some of us run System 7.1 with Appearance Manager for compatibility 😆 Although admittedly I personally usually turn off the Platinum appearance when I'm doing that.

Just to clarify, I don't believe that TattleTech or Norton calculate the MHz themselves, I think they use an OS function... which I think might be run during boot. More guessing, but I think some accelerators modify the stored value to correct it so that things like Norton report correctly. I...

It wont work if you have a Spicy O'Clock installed because you have disconnected the onboard clock generator that we are re-programming. The RAM timings should still take though, so it might help out the Spicy O'Clock. The clock generator goes way higher than the computer could ever achieve...

As long as you fitted appropriate resistors for 33MHz you're fine :) The schematic values match the Apple Fool clock chipping website, so if you followed either you're good. I actually fitted a 320 to mine because I misplaced the original 300R - I'm not too bothered about 20 ohm higher (its a...

Made an updated version. Mustermann found my bug that was stopping arbitrary speeds working on all machines (not sure arbitrary speeds were working on any to be honest...). https://stuffandnonsense.elephantandchicken.co.uk/?p=2519 This version now fully works and you can type in absolutely any...

<off topic> If you don't know - cool trick : If you put a removable SCSI disk like a CD or a Zip disk in the drive before powering on, and it has a compatible driver on the disk for the host computer, the computer loads the driver from the disk right at the start of boot. This is a great way to...

Norton's estimate of Processor speed is wrong as often as it is right. It is even sometimes wrong on stock, unmodified macs. Some of the 2.5x bus multiplier PPC Performas used to just say the wrong speed. Long and short - don't pay any attention to that, it is out of anybody's control.

Don't forget to test serial. Your card likely doesn't use anything near as much power, but my old cards drag the 5v rail down, so if you have a PSU outputting 4.75v stock, you add the card and it drops lower and the computer crashes. But JDW has fully confirmed that he already has everything...

Yeah, not voltage then - was just a thought given you were seeing inconsistent behavior. Nice meter for the floppy port. I was meaning to make something when I was recapping a load of PSUs, but I never got around to it. The great thing about making one of those PSU extension cabless is that...

Hey JDW, I'd suggest double checking the 5V rail while the accelerator is running. Perhaps it was lower end, and the extra load is making it marginal. 68000s are picky about the quality of the 5V. Easiest way to measure it is from the external floppy port. The memory aid is that the fifth pin...

Oh wow, unexpected. I didn't think that System 1 would cope with the non-PWM control system. Guess the routines are in ROM. Another case of only primary evidence has value. Never believe accepted knowledge 😆 Edit - Quite a surprise though - isn't the memory map different in the SE? Doesn't ADB...

My guess would be that the Floppy Emu doesn't need the PWM speed signal because it doesn't have a physical spinning motor. This thread seems to be pointing towards the removal of the PWM related stuff in the SWIM itself, rather than the upgraded ROMs. So your situation is that you probably...

The host doesn't crash - the audio just... stutters is an understatement. This is a particularly bad example with this setup. Perhaps it is pushing their audio fix to its limits and beyond. Generally it works fine with short samples, but struggles with music. I've always found Prince of...