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I would say “master”, “slave” is for the optical drive.

I honestly have no clue, it goes beyond my knowledge, I would need to study the specifications of the SD card standard.

Amazon, to my eye it looks totally identical to the one sold by Arduino. What is “curious“ is that the original configuration is not seen by BlueSCSI, but works with my camera. If you remove the resistor, the card is seen at start up, but it immediately crashes the system.

It’s a possibility, I put some cores around, but couldn’t notice any difference. There are still some options to investigate: plain SD to SD Extender, using full size SD. Cable I have was meant for the SCSI2SD, so micro SD to SD, I am using two adapters (full size > micro) at both ends.

I did some extra trials, I confirm the v2 works fine with HP712, and I also confirm it doesn’t work with the extender cable. Apparently, it does, but you will soon start getting “media error” and that will be it.

I have the one in the picture and it doesn’t work, unless you take out the pull up resistor. Even in that configuration, though, the installer of the OS crashes reporting read/write issues durino the initialization. Once everything is installed by plugging the card directly in the device...

Additional note. SD Extender is not compatible with BlueSCSI, similarly to SCSI2SD, the card is just not seen at start up. Removing the pull up resistor as reported in a previous entry in this thread is making the card visible to the bios, but then the OS installer invariably crashes during...

So, eventually I could get BlueSCSI v2 *somehow* working in combination with the HP712 machine. I encountered many issues, sometimes confounded. For confirmation I repeated over and over the same process (fundamentally installation from scratch of both NEXTSTEP and HP/HX, from physical external...

Brief update. I went back to what I knew would work on the HP712, i.e. SCSI2SD. I confirm you need to set the combo 139/4, else the NeXTStep installer will hang. Eventually, I could confirm a working installation of HP UX 10.20 and NeXT Step 3.3 with SCSI2SD. I then moved back to BlueSCSI...

Thanks @eric for the kind reply. As soon as I have time I will try to play with the settings. I confirm that to my experience for the SCSI2SD board in combination with NeXT black hardware, 139 and 4 are the “magic” numbers. Will try to create an account on Discord, too.

Hello Kay, Thanks a lot for your comments and for sharing the 2Gb image, I really appreciate your support. I will try it as soon as possible. I am sure the hardware is ok: it’s beautifully made, you tested it, it works on a Portable, I’m not even taking the trouble of further testing it on my...

So, I managed to quickly source a BlueSCSI v2, thanks to the very friendly and effective services of @Kay K.M.Mods. At first, I quickly tested it on a Portable, which runs on a v1 board. Note: I switched from SCSI2SD to BlueSCSI on the Portable, as the SCSI2SD would freeze and crash the...

Totally agree!

I’d be extremely cautious at taking the flir values as absolute ones. Those cameras work magic, but my professional experience is telling me that there are so many variables affecting each reading… Anyhow, surely they highlight extremely high temperature for the hot components, the charred board...

@JDW The adapter I use has of course the possibility to select master or slave configuration. As for the SSD, I just bought the cheapest one I could find on the spot on yahoo auctions, can’t remember, but for sure less than 2k yen including shipment. Concerning the mounting bracket, get ready...

Tested on two different SCSI2SD, same result.

So, some additional info. I just tested the extension cable with BlueSCSI v1.0 on a MacPortable and… it just works. So, I’d say the issue lays on the SCSI2SD device or, more likely, on the combination of SCSI2SD with the extension cable. I guess I will order a BlueSCSI v2.0, which seems to be...

Yes, apparently there’s something wrong either with the flat cable (continuity is OK, though) and / or with the interaction with the SCSI2SD board. I have understood the resistor is a pull up. There’s also a capacitor and an empty slot for a second one. So it’s not just a mere “electrical...

Here’s the link about the resistor tweak. Cable is the very same I got from Amazon. Honestly, not even that cheap and it seems to be executed in a reasonable way. I will try to reflow the soldering, but I don’t think it‘s the culprit. The device is very basic, there are not all that many...

Dear All, I have a few SCSI2D devices since some years now. I recently plugged one into an HP 712. Everything runs fine. However, if I try to use a micro-SD - SD extension cable (I would like to swap the micro SD card without opening the overly fragile top lid every time), the device just stops...