So here's a recent Tecmar drive sale on eBay. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250993088572 So the seller says this: Tecmar made several versions…

nice drawer icons, can you copy them and put them online?

I've just posted another 720p video here that shows the HyperDrive Mac 512 booting to the Desktop: I also shot it from the side while booting, with the case back off.

I just added 11 new HyperDrive photos today: https://picasaweb.google.com/103365672326265854011/GCCHyperDrive20DriveMechanism Be sure to read the commentary beneath each photo, a…

A solid-state HyperDrive will either be very expensive or a lot of hacking. Click to expand... A typical Atari ST IDE board (which would be the same hardware, essentially) is f…

The easy way to put a hard disk emulator in a Mac 512 is to add one of the SCSI-equipped upgrades and Mac Plus ROMs. From there, add a notebook SCSI drive like I have in mine, or u…

Yeah, the emulator products are priced so they might make sense if you desperately need to keep some dedicated industrial computer running. (You'll find MFM or RLL hard disks float…

I found an exact flash replacement for my MMI M112 drive: http://www.datexdsm.com/disc/disque33.html But the price is not shown, which leads me to believe it may be as costly as …

There actually are a couple commercial solutions for replacing MFM/RLL hard drives with either SATA or flash... but they are turn-your-hair-white expensive, unfortunately. (North …

...almost *any* MFM (or RLL, they're the same hardware, just the data encoding method differs) hard drive with four or more heads and of suitable physical size would work as a repl…

I suppose this is useless trivia, but according to the platter/head/cylinder layout (2/4/306) that MMI drive in your Hyperdrive is from a logical standpoint literally a shrunken cl…

Thanks for posting those pictures. Now there IS documentation of an MMI mechanism available. I guess I should post pictures of my old disk drives for reference too. That big list c…

An individual who used to be a GCC HyperDrive dealer in the 80's contacted me recently and we've had a long discussion about our respective units. He inspired me to take shoot add…

I bought a nice 133x Kingston CF card for my WS. 133x is faster than most of the pre-G4 portables can do. It usually maxes the bus on my WS, plus was only $30 something for a 16GB.

Well, my solid-state drive is just a bog-standard $20 CF card, so I would not expect to see such blinding results at this end. Still, some of the test results on random reads in pa…

Keep in mind that they test sequential. The issue with hard drives over solid state is the latency as it moves from one physical area, having to reposition the head, then wait for…

And the MacBench results are in: Internal CF drive is nearly twice as fast as CF in PCMCIA adapter (cardbus enabled); Internal CF drive is overall marginally slower than conventi…

I returned for most of the day to the subject of this thread, and thought I might resurrect the thread itself, having had another go at replacing the hard drive in my 2400c with a …

By the way... will the Apple CD/DVD Driver from 8.1 support a non-Apple SCSI DVD-ROM drive? For instance, Toshiba M1401, which seems to be easily found and rather unexpensive.

I'm in the picture taking mood tonight.. There's that dusty "SCREEN" PIF output board.

Well that didn't work out either. SCSI filter on the 7500's hard disk didn't change anything. Filter and terminator (and no internal drive) also didn't boot. I added an external h…

As to your problem, I'm still inclined to believe SCSI problem, but I would expect you to get to the flashing question mark with no cable plugged in. It's conceivable that it need…

As for the jumpers (partially documented here), J106 is open, J103 is closed. This seems to be the correct setup. Click to expand... That is a great find. Nice to know. I tri…

I read back over the start of this thread again. Just wanted to add some pieces of info. I too have two different brands of RAM. 4x Texas Instruments and 4x Accutek. I've tried ea…

The screen takes a bit of time to kick in, so it's possible that the SuperMac logo appears before the grey screen with the other drives. By the time the screen is visible the logo …