The BlueSCSI Project: Replacing My Dead Quantum ProDrive

_nec6678

New Tinkerer
Apr 16, 2025
22
8
3
**Note: I yap a lot about uselessly trying to fix a Quantum ProDrive in the following paragraph, so skipping it will likely be in your best interest.
This afternoon when I went to turn on my IIx, the hard drive spun up but I got nothing but the floppy icon. This was pretty normal; my IIx has a thing where I need to restart the computer to get the hard drive to read. But when I did this, still nothing. I tried again and again, but still nothing. I eventually decided to open up the computer, and reseated the SCSI and power connectors. Still nothing, but now I could see that the activity light was solid. I knew the hard drive must be dead, so I took it out, and tried to open it. I thought that maybe the heads were stuck, and maybe I could get the drive to work again if I was quick. I was wrong, and with my clumsy hands, actually dropped an opening pick inside. I couldn't get the last screw out, so after prying really hard on the lid, I could get the pick to come out. I put the screws back in, knowing that I wouldn't able to get any further, and plugged the drive back in. Now, it didn't spin up at all, and instead made a heavy kachunk. I also felt a chip getting hot, so I decided to call it quits on this drive. Unfortunately, my thriving city from SimCity yesterday seems to be lost forever.

Something that I've been looking at for a while is building my own BlueSCSI, but I've never fully understood the instructions, since a lot of the videos I have found are using a kit. I am using this GitHub page, linked to on the official BlueSCSI website. Until I build one, I'll plug my BMOW Floppy Emulator into the second floppy port and have it emulate a hard drive. I'll see how far I can get with building a BlueSCSI on my own, and will update when I make progress (or fail).

**Side note: In case you're looking at the pictures, I have no idea who Kevin is.
 

Attachments

  • IMG_1097.jpeg
    IMG_1097.jpeg
    1.9 MB · Views: 29
  • IMG_1099.jpeg
    IMG_1099.jpeg
    1.3 MB · Views: 30
  • IMG_1098.jpeg
    IMG_1098.jpeg
    1.3 MB · Views: 22
  • Like
Reactions: eric

_nec6678

New Tinkerer
Apr 16, 2025
22
8
3
Quick update, the BMOW Floppy Emulator idea I had didn't work. I feel pretty stupid.
 

djc6

New Tinkerer
Oct 19, 2024
49
11
8
Quick update, the BMOW Floppy Emulator idea I had didn't work. I feel pretty stupid.

I am a classic mac newb, but I do know the Floppy Emu can emulate an "HD20" device - a hard drive apple made that connected to the external floppy port.

But wikipedia says this: https://en.wikipedia.org/wiki/Hard_Disk_20
Apple officially dropped support for the HD20 with System 6 as well as omitting the necessary ROM code beginning with the Macintosh II.[7]

So maybe your IIx doesn't even have HD20 support in its ROM?

I bought a BlueSCSI for my SE/30 - I did not get a kit, it was fully assembled. Get the version with Wi-Fi its awesome :)


I followed these Usage instructions: https://bluescsi.com/docs/Usage

And I asked a lot of questions on the BlueSCSI Discord Server which is quite active and full of people who can help:

 

djc6

New Tinkerer
Oct 19, 2024
49
11
8
I revived another drive recently (also Quantum SCSI from a mac, but a ProDrive LPS) that wouldn't spin after just gently moving the platters and heads myself which got things unstuck.

But I did so connected to a bluescsi in initiator mode so I could immediately image the drive.
 

_nec6678

New Tinkerer
Apr 16, 2025
22
8
3
So maybe your IIx doesn't even have HD20 support in its ROM?
That's pretty interesting! That would explain why the IIx doesn't have a DB-19 port on the back. I just assumed that since emulating a hard drive running MacOS 7.1 on the BMOW Floppy Emulator was possible on my Mac Plus (and maybe my SE FDHD, I can't remember) from the rear DB-19 connector, it would work with the internal floppy connector in my IIx. You learn something new every day!
 

_nec6678

New Tinkerer
Apr 16, 2025
22
8
3
I bought a BlueSCSI for my SE/30 - I did not get a kit, it was fully assembled. Get the version with Wi-Fi its awesome :)
Hey, I know it's been a while since I've visited this site, but I was wondering: what does using Wi-Fi with a BlueSCSI look like? What does it do?
I do plan on buying an unassembled BlueSCSI kit from JCM soon (probably two, since I am aiming on recapping and cleaning up my SE FDHD in the near future)!
 

vtgearhead

Tinkerer
May 1, 2023
74
28
18
Burlington, VT USA
BlueSCSI / ZuluSCSI wifi provides a network interface that pretends it's a DaynaPORT SC (SCSI). Setup is quite simple: Configure the Blue/Zulu with the name and password for your Wifi access point and install the Dayna driver. Note that it's TCP/IP only and does not pass AFP frames. One slight nit is that Appleshare network drives will not be automatically remounted at boot. I fought this problem for a few days with no success. I believe the underlying problem is that the Dayna driver doesn't get initialized early enough in the boot process.
 

_nec6678

New Tinkerer
Apr 16, 2025
22
8
3
BlueSCSI / ZuluSCSI wifi provides a network interface that pretends it's a DaynaPORT SC (SCSI). Setup is quite simple: Configure the Blue/Zulu with the name and password for your Wifi access point and install the Dayna driver. Note that it's TCP/IP only and does not pass AFP frames. One slight nit is that Appleshare network drives will not be automatically remounted at boot. I fought this problem for a few days with no success. I believe the underlying problem is that the Dayna driver doesn't get initialized early enough in the boot process.
I'm pretty new to this sort of emulation, so what exactly does this mean? What can this do differently, as opposed to using a BlueSCSI that is not network enabled? Sorry if this question is pretty stupid...