PS/1 with ISA SB Card

December 28, 2011 at 19:31:58
Specs: Windows 3.1, 486DX2/64 MB
Trying to install drivers for a Sound Blaster CT2940 ISA card in an IBM PS/1 2168 with DOS 6.0/Windows 3.1 and can't get the drivers or system to detect the card.

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December 29, 2011 at 04:52:34
Windows did not auto detect at that version. The settings are put in manually and tested. If you do it correctly, it works.
The driver needs to be called at boot time. Autoexec.bat or config.sys file will have command line and settings.
The manual is your friend. You will also have to verify no other device is using the settings the sound is. No irq sharing here.
Those were the days you had to know your stuff.

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January 3, 2012 at 15:34:31
They say a picture is worth a thousand words, so here is the problem I run into:

I have the same error despite changing the settings from 220 (tried them all)

Here is the card installed in my computer... Do I need a cable running to the card from the motherboard, or does it just need to be plugged into the ISA port?

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January 3, 2012 at 18:57:04
With ISA sound cards there were three setting that needed to be set with jumpers on the sounds card. Base address, Interrupt No and DMA No.

The Driver also had to be configured with these same settings. If there were a mismatch between what the jumpers where set for and what the software was looking for then there were problems.. Plug n Play was still a few years away. Often failure to install ISA hardware was down to a misplaced jumpers as it was very easy to get it wrong.

220 is the standard base address although that could be changed. Sounds Cards usually used Interrupt 5 and 1 for the DMA address. Depending on what other hardware was installed there was often a conflict with Interrupt 5 so there were jumper options for different interrupts. There were no shared interrupts with the ISA bus.


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