ISA/486 Board Question

From: ajp166 <ajp166_at_bellatlantic.net>
Date: Sat May 4 08:56:35 2002

From: Fred deBros <fdebros_at_verizon.net>
>Is there an ISA card that has the IDE irq assignable to any IRQ?


Older ones did. IDE IRQs were 15 and 14.
 
>U guessed right: I'd like to stick a secondary ide drive (CDROM
>obviously) into a 486 that has only one ide (IRQ14)drive, but no plug
>for a secondary drive, and no, I cannot use the ide cable as it is a
>laptop, but yes, it has the bus connected to a dockstation. And yes I


yes you can. I've done it. one of my 486boxen has 3 CDroms and
a 500mb IDE disk. It serves as a CD server running Win95.

Some of the real early 486s the bios was a bit poor but most of the
better ones it's been no problem. FYI: for the CDrom you simply do
nothing at the bios level and it's the OS that has to find and install
the CDrom. If the cdrom is a standard the win95 drivers will do though
I've had a few oddballs that I had to use the driver supplied with
the drive.

Allison
Received on Sat May 04 2002 - 08:56:35 BST

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