I can't speak for the OP, but in my case yes the CMOS was set to "not installed" for both disks and there is only one IDE channel on the primary port

I experimented trying to get it working on a 3c509b in my 286 system with SCSI as well. Tried both a stock 12k image as well as one that I configured using the tool. In both cases the ROM loaded fine but detected nothing, just like yours

I drew up an interposer PCB in Kicad to make this a little cleaner. If you have the existing keyboard controller socketed, and NOT under the ISA slots, it should work great as a totally plug and play mod. Here are some renderings - I'm going to do a final review of the design then send it off to fab …

Rio444 wrote: Yes, I tested the mod with 286. It work. thank you for the response, does the version of PS2SUPPC.COM you posted in this thread also run on the 286?

Well I guess this was a case of RTFM - here's a quote from the documentation accompanying the BIOS upgrade files: "Drives handled by the BIOS will use extended translation provided they are over 1 Gigabyte in formatted capacity. Drives with less than 1 Gigabyte of formatted capacity will use …

has anyone successfully implemented this mod on a 286?

So turns out I can read from, write to, and even execute binaries on the drive handled by ASPIDISK.SYS just fine... but anytime a directory command is issued or DISKTEST.EXE is attempted to run on the ASPIDISK.SYS managed drive, system hangs for a solid minute before displaying "general failure …

I purchased a TL866II programmer (only $47 shipped!) and upgraded the BIOS and microcode on the AHA-1542B to version 3.2. This adds support for extended translation and also netted me a nice speed boost on the Atlas 10K II. Also got a $10 toothbrush sanitizer for erasure purposes which worked a …

The ST27C256B may work as well if you leave A14 pin floating as seen here: http://retronn.de/imports/hwgal/hw_controller_adaptec_aha-1522a_front.html This effectivly halves capacity. http://ecee.colorado.edu/~mcclurel/STMicro_M27C256B_EPROM_2384.pdf uh leaving it floating seems like a bad idea, it …

I actually did find (much to my surprise) 2 maker labs within a mile of my house, but it seems both of them require a monthly subscription to use the facilities, and neither specify on the website whether they have have programmers. If anyone on here has some 27(or 28)C128s and wants to program them …

luckybob wrote: That's a bios limit, but there's an updated bios for that. Do you have a eeprom programmer? Not yet. I got the updated BIOS files, my next move is to find and purchase an appropriate programmer.

Out of curiosity, I hooked up a Conner 320MB SCSI drive and tried the ASPI driver. It works perfectly with ASPI4DOS.SYS loaded and the BIOS enabled, as well as with ASPI4DOS+ASPIDISK.SYS loaded and the BIOS disabled using files from the "dosdrvr 1997.exe" package attached to this thread. The reason …

eisapc wrote: For what I remember you need ASPICD.SYS loaded in CONFIG.SYS as well to get CDROM support with the adaptec ASPI stack. And of course MSCDEX.EXE in AUTOEXEC.BAT eisapc that is correct but I'm trying to use it to access a hard disk not a CDROM - thus my use of ASPIDISK.SYS

Please forgive me necrobumping this thread but I'm going through the exact same thing. I have a 286 system with the AHA-1542B controller, BIOS version 3.10 with no extended translation support. I initially tried the newest ASPI4DOS.SYS driver on adaptec's website, which just said "Initialization …

what's the rundown on >502MB support with Mr BIOS? did the 386 BIOSes have any translation support?

in case anyone is following: I got the BIOS to flash by putting the files on a DOS 6.22 boot disk not sure if it was DOS 7.10, or the fact that the rom was on a hard disk that was messing it up, but it worked fine from the floppy

Can I bring this thread back from the dead to see if anyone has had any luck flashing that BIOS onto the TD6NF? I have that board, and when I attempt to run "amiflash td6nf4.rom" from a clean DOS 7.10 environment (real mode, no drivers at all), it opens amiflash and just blinks the prompt for "press …