77c22(e) this one IIRC is sordid a mystery chip, but NCR has drivers.
53C90 SCSI, I think...
Louis Ohland wrote:
NCR System 3300 Class 3421
Thought this was a classless society...
3421 (Micro Channel i386) System Software
https://www5.ncr.com/support/support_drivers_patches.asp?Class=pc_library_3421
3421 Reference Disk 1 of 1 ver 2.00
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_REF.EXE
Binary code file to make BIOS v.2.00 for 3421
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_200.EXE
http://ps-2.kev009.com/mcabase/mcb/adp/adf/@7F4D.ADF
Wow, looks pretty flexible and capable.
https://www.ardent-tool.com/adapters/adf/@5608.adf
Nothing mind-shattering
Errata, nothing huge
1x 16-bit AVE slot
3x 16-bit MCA
Power connector could be for a 50/70 style PSU, -OR- like the Model 90
PSU with the edge card socket. I dunno.
Looks to be two "SIMMs" worth of memory soldered to the board, unknown
size. But each "SIMM" has 8 chips, plus 4 smaller chips. My SWAG is 8x
data, 4x parity.
"i486 upgrade board" Do tell...
Lubo wrote:
https://theretroweb.com/motherboards/s/ncr-class-3421
This is an NCR system with MCA slots, 386 SX.
What makes it interesting is it has SCSI on the motherboard, with
both internal and external connections, the maximum RAM (8Mb), and a
Cabletron Ethernet card with the standard RJ-45 jack and a working
Conner Hard drive.
I modified the onboard VGA connector, adding an opening on pin 9 on
the second row, so current VGA cables fit now, no custom cabling needed. >>>
It boots, displays POST info including that it detects 8Mb RAM, and
has DOS 6.22 and Windows 3.0 installed, though I commented windows
and the antivirus out of autoexec.bat because they run glacially
slow. They can be enabled by uncommenting or run manually by typing
win. The SCSI and ethernet have the ADF files installed. @7F4D for
SCSI and @5608 for Ethernet, which has a RJ-45 jack. I managed to
install a packet driver, and DOS based DHCP, and it got an IP
address, and pinged briefly, but then stops. It appears the hardware
works and it is a software problem.
These were used as POS terminals back in the day, but would work fine
for retro-computing DOS games or (very slowly) Windows 3.x. I also
read they take OS/2 up to version 2.0 but have not tested.
I am in the Los Angeles area, in case anyone wants to pick it up,
since these older models are all metal, so shipping might cost more
than the computer at this point.
It's not klar how or if there is a 486 upgrade for this. A 16-bit 486? Possumble, but kontuzing.
Dave, I see the YouToo video, did you get good filthy-feely pics of the system board?
It's not klar how or if there is a 486 upgrade for this. A 16-bit 486? Possumble, but kontuzing.
You bare it, we'll share it...
Louis Ohland wrote:
77c22(e) this one IIRC is sordid a mystery chip, but NCR has drivers.
53C90 SCSI, I think...
Louis Ohland wrote:
NCR System 3300 Class 3421
Thought this was a classless society...
3421 (Micro Channel i386) System Software
https://www5.ncr.com/support/support_drivers_patches.asp?Class=pc_library_3421
3421 Reference Disk 1 of 1 ver 2.00
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_REF.EXE
Binary code file to make BIOS v.2.00 for 3421
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_200.EXE
http://ps-2.kev009.com/mcabase/mcb/adp/adf/@7F4D.ADF
Wow, looks pretty flexible and capable.
https://www.ardent-tool.com/adapters/adf/@5608.adf
Nothing mind-shattering
Errata, nothing huge
1x 16-bit AVE slot
3x 16-bit MCA
Power connector could be for a 50/70 style PSU, -OR- like the Model
90 PSU with the edge card socket. I dunno.
Looks to be two "SIMMs" worth of memory soldered to the board,
unknown size. But each "SIMM" has 8 chips, plus 4 smaller chips. My
SWAG is 8x data, 4x parity.
"i486 upgrade board" Do tell...
Lubo wrote:
https://theretroweb.com/motherboards/s/ncr-class-3421
This is an NCR system with MCA slots, 386 SX.
What makes it interesting is it has SCSI on the motherboard, with
both internal and external connections, the maximum RAM (8Mb), and a
Cabletron Ethernet card with the standard RJ-45 jack and a working
Conner Hard drive.
I modified the onboard VGA connector, adding an opening on pin 9 on
the second row, so current VGA cables fit now, no custom cabling
needed.
It boots, displays POST info including that it detects 8Mb RAM, and
has DOS 6.22 and Windows 3.0 installed, though I commented windows
and the antivirus out of autoexec.bat because they run glacially
slow. They can be enabled by uncommenting or run manually by typing
win. The SCSI and ethernet have the ADF files installed. @7F4D for
SCSI and @5608 for Ethernet, which has a RJ-45 jack. I managed to
install a packet driver, and DOS based DHCP, and it got an IP
address, and pinged briefly, but then stops. It appears the hardware
works and it is a software problem.
These were used as POS terminals back in the day, but would work
fine for retro-computing DOS games or (very slowly) Windows 3.x. I
also read they take OS/2 up to version 2.0 but have not tested.
I am in the Los Angeles area, in case anyone wants to pick it up,
since these older models are all metal, so shipping might cost more
than the computer at this point.
Dave, I see the YouToo video, did you get good filthy-feely pics of the system board?
It's not klar how or if there is a 486 upgrade for this. A 16-bit 486? Possumble, but kontuzing.
You bare it, we'll share it...
Louis Ohland wrote:
77c22(e) this one IIRC is sordid a mystery chip, but NCR has drivers.
53C90 SCSI, I think...
Louis Ohland wrote:
NCR System 3300 Class 3421
Thought this was a classless society...
3421 (Micro Channel i386) System Software
https://www5.ncr.com/support/support_drivers_patches.asp?Class=pc_library_3421
3421 Reference Disk 1 of 1 ver 2.00
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_REF.EXE
Binary code file to make BIOS v.2.00 for 3421
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_200.EXE
http://ps-2.kev009.com/mcabase/mcb/adp/adf/@7F4D.ADF
Wow, looks pretty flexible and capable.
https://www.ardent-tool.com/adapters/adf/@5608.adf
Nothing mind-shattering
Errata, nothing huge
1x 16-bit AVE slot
3x 16-bit MCA
Power connector could be for a 50/70 style PSU, -OR- like the Model
90 PSU with the edge card socket. I dunno.
Looks to be two "SIMMs" worth of memory soldered to the board,
unknown size. But each "SIMM" has 8 chips, plus 4 smaller chips. My
SWAG is 8x data, 4x parity.
"i486 upgrade board" Do tell...
Lubo wrote:
https://theretroweb.com/motherboards/s/ncr-class-3421
This is an NCR system with MCA slots, 386 SX.
What makes it interesting is it has SCSI on the motherboard, with
both internal and external connections, the maximum RAM (8Mb), and a
Cabletron Ethernet card with the standard RJ-45 jack and a working
Conner Hard drive.
I modified the onboard VGA connector, adding an opening on pin 9 on
the second row, so current VGA cables fit now, no custom cabling
needed.
It boots, displays POST info including that it detects 8Mb RAM, and
has DOS 6.22 and Windows 3.0 installed, though I commented windows
and the antivirus out of autoexec.bat because they run glacially
slow. They can be enabled by uncommenting or run manually by typing
win. The SCSI and ethernet have the ADF files installed. @7F4D for
SCSI and @5608 for Ethernet, which has a RJ-45 jack. I managed to
install a packet driver, and DOS based DHCP, and it got an IP
address, and pinged briefly, but then stops. It appears the hardware
works and it is a software problem.
These were used as POS terminals back in the day, but would work
fine for retro-computing DOS games or (very slowly) Windows 3.x. I
also read they take OS/2 up to version 2.0 but have not tested.
I am in the Los Angeles area, in case anyone wants to pick it up,
since these older models are all metal, so shipping might cost more
than the computer at this point.
Dave, I see the YouToo video, did you get good filthy-feely pics of the system board?
It's not klar how or if there is a 486 upgrade for this. A 16-bit 486? Possumble, but kontuzing.
You bare it, we'll share it...
Louis Ohland wrote:
77c22(e) this one IIRC is sordid a mystery chip, but NCR has drivers.
53C90 SCSI, I think...
Louis Ohland wrote:
NCR System 3300 Class 3421
Thought this was a classless society...
3421 (Micro Channel i386) System Software
https://www5.ncr.com/support/support_drivers_patches.asp?Class=pc_library_3421
3421 Reference Disk 1 of 1 ver 2.00
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_REF.EXE
Binary code file to make BIOS v.2.00 for 3421
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_200.EXE
http://ps-2.kev009.com/mcabase/mcb/adp/adf/@7F4D.ADF
Wow, looks pretty flexible and capable.
https://www.ardent-tool.com/adapters/adf/@5608.adf
Nothing mind-shattering
Errata, nothing huge
1x 16-bit AVE slot
3x 16-bit MCA
Power connector could be for a 50/70 style PSU, -OR- like the Model
90 PSU with the edge card socket. I dunno.
Looks to be two "SIMMs" worth of memory soldered to the board,
unknown size. But each "SIMM" has 8 chips, plus 4 smaller chips. My
SWAG is 8x data, 4x parity.
"i486 upgrade board" Do tell...
Lubo wrote:
https://theretroweb.com/motherboards/s/ncr-class-3421
This is an NCR system with MCA slots, 386 SX.
What makes it interesting is it has SCSI on the motherboard, with
both internal and external connections, the maximum RAM (8Mb), and a
Cabletron Ethernet card with the standard RJ-45 jack and a working
Conner Hard drive.
I modified the onboard VGA connector, adding an opening on pin 9 on
the second row, so current VGA cables fit now, no custom cabling
needed.
It boots, displays POST info including that it detects 8Mb RAM, and
has DOS 6.22 and Windows 3.0 installed, though I commented windows
and the antivirus out of autoexec.bat because they run glacially
slow. They can be enabled by uncommenting or run manually by typing
win. The SCSI and ethernet have the ADF files installed. @7F4D for
SCSI and @5608 for Ethernet, which has a RJ-45 jack. I managed to
install a packet driver, and DOS based DHCP, and it got an IP
address, and pinged briefly, but then stops. It appears the hardware
works and it is a software problem.
These were used as POS terminals back in the day, but would work
fine for retro-computing DOS games or (very slowly) Windows 3.x. I
also read they take OS/2 up to version 2.0 but have not tested.
I am in the Los Angeles area, in case anyone wants to pick it up,
since these older models are all metal, so shipping might cost more
than the computer at this point.
https://books.google.com/books?id=l3Z0ZgEexGEC&pg=PT172&lpg=PT172&dq=%22PC386sx/MC%22&source=bl&ots=_8kKkNSTOt&sig=ACfU3U38_mWrRNTveMMy1ty7r79VaKASwg&hl=en&sa=X&ved=2ahUKEwie-5D4m7b7AhUokIkEHbdkAm8Q6AF6BAgmEAM#v=onepage&q=%22PC386sx%2FMC%22&f=false
Starts on page 157 (not physical)
Louis Ohland wrote:
Dave, I see the YouToo video, did you get good filthy-feely pics of
the system board?
It's not klar how or if there is a 486 upgrade for this. A 16-bit 486?
Possumble, but kontuzing.
You bare it, we'll share it...
Louis Ohland wrote:
77c22(e) this one IIRC is sordid a mystery chip, but NCR has drivers.
53C90 SCSI, I think...
Louis Ohland wrote:
NCR System 3300 Class 3421
Thought this was a classless society...
3421 (Micro Channel i386) System Software
https://www5.ncr.com/support/support_drivers_patches.asp?Class=pc_library_3421
3421 Reference Disk 1 of 1 ver 2.00
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_REF.EXE >>>>
Binary code file to make BIOS v.2.00 for 3421
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_200.EXE >>>>
http://ps-2.kev009.com/mcabase/mcb/adp/adf/@7F4D.ADF
Wow, looks pretty flexible and capable.
https://www.ardent-tool.com/adapters/adf/@5608.adf
Nothing mind-shattering
Errata, nothing huge
1x 16-bit AVE slot
3x 16-bit MCA
Power connector could be for a 50/70 style PSU, -OR- like the Model
90 PSU with the edge card socket. I dunno.
Looks to be two "SIMMs" worth of memory soldered to the board,
unknown size. But each "SIMM" has 8 chips, plus 4 smaller chips. My
SWAG is 8x data, 4x parity.
"i486 upgrade board" Do tell...
Lubo wrote:
https://theretroweb.com/motherboards/s/ncr-class-3421
This is an NCR system with MCA slots, 386 SX.
What makes it interesting is it has SCSI on the motherboard, with
both internal and external connections, the maximum RAM (8Mb), and
a Cabletron Ethernet card with the standard RJ-45 jack and a
working Conner Hard drive.
I modified the onboard VGA connector, adding an opening on pin 9 on
the second row, so current VGA cables fit now, no custom cabling
needed.
It boots, displays POST info including that it detects 8Mb RAM, and
has DOS 6.22 and Windows 3.0 installed, though I commented windows
and the antivirus out of autoexec.bat because they run glacially
slow. They can be enabled by uncommenting or run manually by typing
win. The SCSI and ethernet have the ADF files installed. @7F4D for
SCSI and @5608 for Ethernet, which has a RJ-45 jack. I managed to
install a packet driver, and DOS based DHCP, and it got an IP
address, and pinged briefly, but then stops. It appears the
hardware works and it is a software problem.
These were used as POS terminals back in the day, but would work
fine for retro-computing DOS games or (very slowly) Windows 3.x. I
also read they take OS/2 up to version 2.0 but have not tested.
I am in the Los Angeles area, in case anyone wants to pick it up,
since these older models are all metal, so shipping might cost more
than the computer at this point.
https://books.google.com/books?id=l3Z0ZgEexGEC&pg=PT172&lpg=PT172&dq=%22PC386sx/MC%22&source=bl&ots=_8kKkNSTOt&sig=ACfU3U38_mWrRNTveMMy1ty7r79VaKASwg&hl=en&sa=X&ved=2ahUKEwie-5D4m7b7AhUokIkEHbdkAm8Q6AF6BAgmEAM#v=onepage&q=%22PC386sx%2FMC%22&f=false
Starts on page 157 (not physical)
Louis Ohland wrote:
Dave, I see the YouToo video, did you get good filthy-feely pics of
the system board?
It's not klar how or if there is a 486 upgrade for this. A 16-bit 486?
Possumble, but kontuzing.
You bare it, we'll share it...
Louis Ohland wrote:
77c22(e) this one IIRC is sordid a mystery chip, but NCR has drivers.
53C90 SCSI, I think...
Louis Ohland wrote:
NCR System 3300 Class 3421
Thought this was a classless society...
3421 (Micro Channel i386) System Software
https://www5.ncr.com/support/support_drivers_patches.asp?Class=pc_library_3421
3421 Reference Disk 1 of 1 ver 2.00
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_REF.EXE >>>>
Binary code file to make BIOS v.2.00 for 3421
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_200.EXE >>>>
http://ps-2.kev009.com/mcabase/mcb/adp/adf/@7F4D.ADF
Wow, looks pretty flexible and capable.
https://www.ardent-tool.com/adapters/adf/@5608.adf
Nothing mind-shattering
Errata, nothing huge
1x 16-bit AVE slot
3x 16-bit MCA
Power connector could be for a 50/70 style PSU, -OR- like the Model
90 PSU with the edge card socket. I dunno.
Looks to be two "SIMMs" worth of memory soldered to the board,
unknown size. But each "SIMM" has 8 chips, plus 4 smaller chips. My
SWAG is 8x data, 4x parity.
"i486 upgrade board" Do tell...
Lubo wrote:
https://theretroweb.com/motherboards/s/ncr-class-3421
This is an NCR system with MCA slots, 386 SX.
What makes it interesting is it has SCSI on the motherboard, with
both internal and external connections, the maximum RAM (8Mb), and
a Cabletron Ethernet card with the standard RJ-45 jack and a
working Conner Hard drive.
I modified the onboard VGA connector, adding an opening on pin 9 on
the second row, so current VGA cables fit now, no custom cabling
needed.
It boots, displays POST info including that it detects 8Mb RAM, and
has DOS 6.22 and Windows 3.0 installed, though I commented windows
and the antivirus out of autoexec.bat because they run glacially
slow. They can be enabled by uncommenting or run manually by typing
win. The SCSI and ethernet have the ADF files installed. @7F4D for
SCSI and @5608 for Ethernet, which has a RJ-45 jack. I managed to
install a packet driver, and DOS based DHCP, and it got an IP
address, and pinged briefly, but then stops. It appears the
hardware works and it is a software problem.
These were used as POS terminals back in the day, but would work
fine for retro-computing DOS games or (very slowly) Windows 3.x. I
also read they take OS/2 up to version 2.0 but have not tested.
I am in the Los Angeles area, in case anyone wants to pick it up,
since these older models are all metal, so shipping might cost more
than the computer at this point.
https://minuszerodegrees.net/manuals/NCR/NCR%20PC386sx_MC%20Personal%20Computer%20-%20Users%20Manual%20-%20May%201990.pdf
I h8te Gooble's looong link.
Oh. Once again, contemporaneous articles use the then-correct name.
PC386SX/MC20 (20 in subscript)
Teapo 175W PSU, "custom designed" "dual voltage", US and european,
assume 120/220
3x SIMMs, 70nS supporting zero wait states.
System RAM arrangement "Page-Mode", "Interleaved" is not in table for
the 3241.
"Page Mode memory allows back-to-back memory accesses within blocks of
memory called pages, avoiding wait states."
Shadowing is permanently enabled for video BIOS. Video performance was
very good.
Louis Ohland wrote:
https://books.google.com/books?id=l3Z0ZgEexGEC&pg=PT172&lpg=PT172&dq=%22PC386sx/MC%22&source=bl&ots=_8kKkNSTOt&sig=ACfU3U38_mWrRNTveMMy1ty7r79VaKASwg&hl=en&sa=X&ved=2ahUKEwie-5D4m7b7AhUokIkEHbdkAm8Q6AF6BAgmEAM#v=onepage&q=%22PC386sx%2FMC%22&f=false
Ok I would like this systemStarts on page 157 (not physical)
Louis Ohland wrote:
Dave, I see the YouToo video, did you get good filthy-feely pics of
the system board?
It's not klar how or if there is a 486 upgrade for this. A 16-bit 486?
Possumble, but kontuzing.
You bare it, we'll share it...
Louis Ohland wrote:
77c22(e) this one IIRC is sordid a mystery chip, but NCR has drivers.
53C90 SCSI, I think...
Louis Ohland wrote:
NCR System 3300 Class 3421
Thought this was a classless society...
3421 (Micro Channel i386) System Software
https://www5.ncr.com/support/support_drivers_patches.asp?Class=pc_library_3421
3421 Reference Disk 1 of 1 ver 2.00
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_REF.EXE >>>>
Binary code file to make BIOS v.2.00 for 3421
http://www3.ncr.com/support/pc/pcfiles/Machines/34xx/3421/3421_200.EXE >>>>
http://ps-2.kev009.com/mcabase/mcb/adp/adf/@7F4D.ADF
Wow, looks pretty flexible and capable.
https://www.ardent-tool.com/adapters/adf/@5608.adf
Nothing mind-shattering
Errata, nothing huge
1x 16-bit AVE slot
3x 16-bit MCA
Power connector could be for a 50/70 style PSU, -OR- like the Model
90 PSU with the edge card socket. I dunno.
Looks to be two "SIMMs" worth of memory soldered to the board,
unknown size. But each "SIMM" has 8 chips, plus 4 smaller chips. My
SWAG is 8x data, 4x parity.
"i486 upgrade board" Do tell...
Lubo wrote:
https://theretroweb.com/motherboards/s/ncr-class-3421
This is an NCR system with MCA slots, 386 SX.
What makes it interesting is it has SCSI on the motherboard, with
both internal and external connections, the maximum RAM (8Mb), and >>>>> a Cabletron Ethernet card with the standard RJ-45 jack and a
working Conner Hard drive.
I modified the onboard VGA connector, adding an opening on pin 9 on >>>>> the second row, so current VGA cables fit now, no custom cabling
needed.
It boots, displays POST info including that it detects 8Mb RAM, and >>>>> has DOS 6.22 and Windows 3.0 installed, though I commented windows >>>>> and the antivirus out of autoexec.bat because they run glacially
slow. They can be enabled by uncommenting or run manually by typing >>>>> win. The SCSI and ethernet have the ADF files installed. @7F4D for >>>>> SCSI and @5608 for Ethernet, which has a RJ-45 jack. I managed to
install a packet driver, and DOS based DHCP, and it got an IP
address, and pinged briefly, but then stops. It appears the
hardware works and it is a software problem.
These were used as POS terminals back in the day, but would work
fine for retro-computing DOS games or (very slowly) Windows 3.x. I >>>>> also read they take OS/2 up to version 2.0 but have not tested.
I am in the Los Angeles area, in case anyone wants to pick it up,
since these older models are all metal, so shipping might cost more >>>>> than the computer at this point.
On Thursday, November 17, 2022 at 10:04:10 AM UTC-5, Louis Ohland wrote:486 upgrade kit, see https://forum.vcfed.org/index.php?threads/cyrix-386-sx-to-486-upgrade.48594/.
It's not klar how or if there is a 486 upgrade for this. A 16-bit 486? Possumble, but kontuzing.Back in the day, there was a product called "MakeIt 486" from Improve Technologies that allowed you to upgrade a 80286 machine (it bought a couple of those kits back when), so a 16-bit 486 upgrade option is certainly doable. Cyrix also made a 386SX to
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