So.. my "backup" drive I ordered arrived today (always nice to have a spare). And.. it works! (It reads data CDs and plays Audio CDs). I'm guessing there's a short somewhere on the first drive, but it's pretty low on my list to find it. I guess I sold that 1510a short! Thanks for help and …

It's unknown to me if the software works but you could try http://www.6502.org/users/sjgray/software/sjgplay/sjgplay_dos.html to play an audio cd. See if that works. edit : have you tried it ? SJGPLAY loads fine and detects the CD drive. The busy LED lights up (flickering like it's being polled or …

Disruptor wrote on 2023-07-19, 16:31: Have you tried another interrupt line, like IRQ10 ? Yes, I have tried 10 and 11 with the same result. 11 is the default recommended by the card manual. Currently it's the only card plugged into the machine and the BIOS doesn't show those in use by anything …

weedeewee wrote on 2023-07-19, 16:29: Have you tried playing an audio cd with the program I suggested? I have not, but it is on my list (: In my head, if the read functionality is broken on the device I'd see a different error, but it is worth doing.

Sounds like the options are: - Find a SCSI-1 adapter, ideally with the Z53801/NCR 53c80 chip and driver (this seems pretty doable and not too expensive) - Find a PAS-8 or PAS-16 with SCSI header (Also find an internal-external adapter bracket, and possibly a separate cd-rom driver) .. $$$ - Look for …

Which exact version of the host adapter do you have and do you have a terminator in the centronics connector that doesnt go to the computer? It's an AHA 1510a, and appears to be the "dumb" variety with only one jumper area and no bios chip. I am not sure whether that connector has a terminator or …

Which exact version of the host adapter do you have and do you have a terminator in the centronics connector that doesnt go to the computer? I am not sure what I'm looking for in the connector. I figured if the device is terminated then that would work. I can get you more details on the cable or a …

Perhaps you can set your controller to negotiate asynchronous transfer mode (it is an option in the speed rates menu) to the cdrom device (SCSI ID 6) in the controller's BIOS. If that works, we can look at the termination of your bus. I "think" we are already doing these things with the current …

Thanks for all the help folks (: I'll give y'all some pics and then address questions as I get time today. Can you show us a picture of your 1510A ? Some were just like a 1520A with many jumpers and BIOS. But If it looks like this picture it is essentially a dumb card, like the 1505 designed for …

ASPI2DOS gives me "invalid string" for /XFF and /X00 which would be the slowest settings, even though this indicates the 1510 might take a /X switch http://download.adaptec.com/pdfs/installation … /aha1510_ig.pdf (It doesn't indicate what speed values you can give it)

Try disabling "Fast SCSI' on the 1510, those old drives were mated with a NCR 53c80 or NCR 53c90 (The Fushion CD had either the Spectrum Pro or PAS 16 SCSI and both used a 53c80 variant) which were SCSI-1 only capable 2Mb/s with max of 5Mb/s. The 1510 is SCSI-2 FAST so may be trying to talk to the …

With parity checking disabled it at least finds the drive .? ie aspicd does not show "CD-ROM driver not loaded:..." you already showed a picture once of aspi2dos, aspicd, mscdex & ... being loaded, can you post that again with the parity disabled switch ? - Yes, that makes sense to me about …

Since the drive can be used as audio CD player. When it's not connected to SCSI bus, it plays audio CD without problem? Good question.. I think it requires software to play audio CDs. The only control is a volume knob, like some internal drives. When I put in an audio CD it just spins .. no sound …

Is it possible the disc cannot be read? Have you tried another CD? I have tried a few 90's CD-ROMs. Notably the behavior is exactly the same if the door is just left open. The "busy" light barely goes on but the "not ready" is returned right away, which in any other device would make me check …

I tried several combinations of the arguments. With parity checking disabled, the drive apparently loads successfully, but `DIR` always returns a "Not Ready" error. I'm not sure if the drive should have parity checking or not.

Wrt Termination on the cdrom, https://th99.infania.net/r/M-O/60108.htm will help It seems to be a 1x cdrom, so I doubt it will do any synchronous or disconnects on the scsi bus, and while such things should be "automagically". Try disabling them using DEVICE=C:\SCSI\ASPI2DOS.SYS /D /C- /U- /Q10 in …

Hi all (: This is the first CD-ROM I had access to as a kid, so it'd be pretty cool to get one working on my Compaq 386. The Problem: Detected by SCSI ASPI install, but not detected by CD-ROM driver on Boot "Device driver not found: 'ASPICD0' No valid CDROM device drivers present Similar to https:// …