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IBM 5161 Extender Card

L

lyonadmiral

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Joined
Jun 3, 2009
Messages
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Location
Peru, New York
I have a 5161 on the way with the cable but of course, don't have the extender card. I know they're rare and while I'm looking at seeing if we can possibly make some, does anyone have any they'd lend me just so I can test the unit out if you are not willing to sell it?

Thanks,
Dan
 
I keep getting the terminology mixed up, but I do have the card that sits in the expansion unit and the cable that goes with it.
 
I have a spare that I haven't tested yet. Let me check it out and get back to you. I'm not sure if I want to sell it but we can work something out since you just want to test your unit.
 
I just tried it out in one of my IBM 5155 without the 5161 hooked up to it. It gives an error 1801 at POST. I'm 99% sure they my other extender card doesn't throw an error message if nothing is hooked up to it.
 
arrow_runner said:
I just tried it out in one of my IBM 5155 without the 5161 hooked up to it. It gives an error 1801 at POST. I'm 99% sure they my other extender card doesn't throw an error message if nothing is hooked up to it.
Click to expand...
The BIOS revsion on the motherboard of an (unmodified) IBM 5155 is dated 11/08/82. The same BIOS is used in the early 5160s.
The 'power on self test' (POST) of the 11/08/8 BIOS is detailed at [here]. Step 26 shows the situation in which the POST generates an 1801 error.
 
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