ALERT: eBay Auction, Hyperdrive 512k in Disguise! — #38
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…
Found 9,938 posts across 1 forum.
ALERT: eBay Auction, Hyperdrive 512k in Disguise! — #37
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…
ALERT: eBay Auction, Hyperdrive 512k in Disguise! — #36
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 …
ALERT: eBay Auction, Hyperdrive 512k in Disguise! — #35
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 …
ALERT: eBay Auction, Hyperdrive 512k in Disguise! — #34
...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…
ALERT: eBay Auction, Hyperdrive 512k in Disguise! — #33
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…
ALERT: eBay Auction, Hyperdrive 512k in Disguise! — #32
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…
ALERT: eBay Auction, Hyperdrive 512k in Disguise! — #31
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…
Yet another 2400c problem — #13
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.
Yet another 2400c problem — #12
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…
Yet another 2400c problem — #11
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…
Yet another 2400c problem — #10
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…
Yet another 2400c problem — #9
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 …
DVD in a Quadra? — #14
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.
Nubus "SCREEN" PIF output board ver. 1.1 — #10
I'm in the picture taking mood tonight..
There's that dusty "SCREEN" PIF output board.
IIfx Won't boot — #87
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…
IIfx Won't boot — #86
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…
IIfx Won't boot — #85
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…
IIfx Won't boot — #84
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…
IIfx Won't boot — #83
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 …
IIfx Won't boot — #82
The SuperMac image is resident in the firmware for the video card. That is, it lives on the EEPROM chip on the video card.
If you're not getting that screen with some configurati…
IIfx Won't boot — #81
I took out the RAM and ROM and cleaned the contacts on them with q-tips and isopropyl alcohol. Still no improvement. The RAM slots are in two banks of four. If I leave two slots em…
IIfx Won't boot — #80
I'm still a bit confused by this claim that active terminating drives don't need special termination on the IIfx. The dead IIfx hard disk is the only one that when connected up to …
IIfx Won't boot — #79
Last test for tonight. I put my 7500 hard disk in the LC III, wiped it and installed a fresh System 7.5 for all Macs (I tried 7.1 but the resulting install wouldn't boot the LC III…
IIfx Won't boot — #78
On the 7500 the hard disk was on the end of the cable with the cdrom as intermediate.
You're right. I assumed the term jumper would be at the back. I took off the drive sled and t…