The picture at http://snarc.net/board.jpg shows the inside of a PS/2 Model 30. As you can see, it's missing the daughter board for the ISA slots. What is that board called? Anybody have one that I could borrow from now through mid-July?
It's called a riser card. I would be rather surprised if there isn't one in the warehouse somewhere. -Ian On Mon, Jun 13, 2016 at 5:33 PM, Evan Koblentz via vcf-midatlantic <vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
The picture at http://snarc.net/board.jpg shows the inside of a PS/2 Model 30. As you can see, it's missing the daughter board for the ISA slots. What is that board called? Anybody have one that I could borrow from now through mid-July?
It's called a riser card.
Is this it? http://m.ebay.com/itm/IBM-27F4243-PS-2-Model-30-286-Riser-Card-/301784336433
Is this it?
http://m.ebay.com/itm/IBM-27F4243-PS-2-Model-30-286-Riser-Card-/301784336433
No, that's a 16-bit version for the Model 30 286. Unless you're working on a Model 30 286 it won't work at all. Beware, there are two risers for the Model 30 -- one with ISA slots, and one with just a RTC battery and no slots. Thanks, Jonathan
No, that's a 16-bit version for the Model 30 286. Unless you're working on a Model 30 286 it won't work at all. Beware, there are two risers for the Model 30 -- one with ISA slots, and one with just a RTC battery and no slots.
Hmmm. I don’t see a place for a second riser on the motherboard. Also the CPU says 8086 on it, not 80286. Could this be an earlier board in a Model 30 case? What's going on here??
Ps. The computer works fine. It boots into DOS from the hard drive. It doesn't know the time or date :) but then neither do I lots of times! On Jun 13, 2016, Evan Koblentz via vcf-midatlantic <vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
No, that's a 16-bit version for the Model 30 286. Unless you're working on a Model 30 286 it won't work at all. Beware, there are two risers for the Model 30 -- one with ISA slots, and one with just a RTC battery and no slots.
Hmmm.
I don’t see a place for a second riser on the motherboard.
Also the CPU says 8086 on it, not 80286.
Could this be an earlier board in a Model 30 case? What's going on here??
Thinking aloud: Googled and found ISA-to-USB adapters for about thirty bucks. Do they work? If so, then I could bring a laptop to HOPE instead of a PC, screen, and keyboard. Vastly simpler for taking mass transit into NYC.
On 06/13/2016 06:25 PM, Evan Koblentz via vcf-midatlantic wrote:
No, that's a 16-bit version for the Model 30 286. Unless you're working on a Model 30 286 it won't work at all. Beware, there are two risers for the Model 30 -- one with ISA slots, and one with just a RTC battery and no slots.
I don’t see a place for a second riser on the motherboard.
I think he meant that there are 2 different models of riser. -- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies
http://vintagecomputer.net/ibm/8530/IBM_PS2_8530_Card_Extender.jpg This is what you need. But only because of the battery. If you boot with the Model 30 reference disk you can set the BIOS stuff to allow you to proceed. (NOTE: you need a 720K disk, but if you can't find one try a 1.44 disk to create a copy of the reference disk) http://www.ibmfiles.com/ps2disketteimages.htm Bill -- @ BillDeg: Web: vintagecomputer.net Twitter: @billdeg <https://twitter.com/billdeg> Youtube: @billdeg <https://www.youtube.com/user/billdeg> Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm>
In case I was not clear. You don't need the riser to use the computer, as long as you have a reference disk to initialize the system. You reboot after initialization and stick in a DOS 3.3 disk to drive A to boot to the OS.
One more thing....The model 30 may not be compatible with the Lego device. Do you have a workng 5155 (XT Portable?) that would work for sure. b
You don't need the riser to use the computer, as long as you have a reference disk to initialize the system. You reboot after initialization and stick in a DOS 3.3 disk to drive A to boot to the OS.
This is moot: the computer boots into DOS from c:\ and works fine. I tried it tonight.
One more thing....The model 30 may not be compatible with the Lego device. Do you have a workng 5155 (XT Portable?) that would work for sure.
We tried six Compaq portables and two 5155s at the workshop. None booted. I'm sure some of them can be fixed but there was not enough time because I had to leave early yesterday for a family thing. Anyway, I'm feeling intrigued by the ISA-to-USB adapter concept. That would solve multiple problems.
Evan Koblentz wrote:
The picture at http://snarc.net/board.jpg shows the inside of a PS/2 Model 30. As you can see, it's missing the daughter board for the ISA slots. What is that board called?
Commonly called a "riser".
Anybody have one that I could borrow from now through mid-July?
Sorry, not me. Bill S.
On 06/13/2016 05:33 PM, Evan Koblentz via vcf-midatlantic wrote:
The picture at http://snarc.net/board.jpg shows the inside of a PS/2 Model 30. As you can see, it's missing the daughter board for the ISA slots. What is that board called? Anybody have one that I could borrow from now through mid-July?
I think it's called an ISA Riser, sorry I don't have one. -- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies
participants (6)
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Bill Sudbrink -
Evan Koblentz -
Ian Primus -
Neil Cherry -
Systems Glitch -
william degnan