That card doesn't seem to have an (eep)rom, so you shouldn't expect any on startup scsi bios initialization.
If it does so on a compaq, then the scsi bios was integrated with the main computer bios.

Using it in dos/windows should work if you install the drivers for a symbios logic 83c875 scsi controller

zwrr wrote on 2022-10-07, 00:09:

Hi all, I built a K6-2 computer to run old DOS games, then I got a SCSI card, model number SYMLOGIC 83C875J, from an old Compaq server, but I found this SCSI card It seems that there is no BIOS chip installed, after my K6-2 host is booted, the motherboard assigns an interrupt to the SCSI card, but does not show any SCSI card initialization scan device information, I doubt whether the SCSI card BIOS is stored on that Compaq server in the motherboard BIOS.

Is there any way to use this SCSI card on a normal motherboard?

PS: I am not an English speaker, the above text is translated by Google, please forgive me if there are grammatical errors.

What you need from this card? Be bootable or just connect HDD(s) and see it in DOS/Windows or other system?

Board without bios.

NCR SDMS 3.xx can be built into the BIOS of the motherboard, but it does not know the 53c875j chip, version 4 is needed. But it is larger in size and I don’t know how to embed it 🙁

Regular dos drivers are not suitable, you need FWS2ASPI.SYS
(https://support.hpe.com/connect/s/softwaredet … MTX-UNITY-I7597)

Links:
https://groups.google.com/g/comp.periphs.scsi … cPbZFRo0J?pli=1

https://www.phantom.sannata.org/viewtopic.php … =657953#p657953