On  4 Jan 99 at 14:05, Donald Rex Gaither wrote:

>   I have a question for some of the older computer people.  Does
> anyone remeber what IRQ the old ISA SVGA cards used?  Specifically
> a 1meg card running Trident 8900 chip?  I am trying to trouble
> shoot a problem with a Hitachi Quad speed cdrom drive locking up
> when put on an FIC VIP-IO motherboard's secondary EIDE controller.

  I have an 8900 in one of my machines, and I don't think it uses an
IRQ.  [I'll try to remember to double check tonight.]
  On PCI video cards, an IRQ is often used for:

(a) on-board MPEG decoder hardware
(b) DirectX support
(c) something I'm forgetting -- 3D support?

Anyway, the point is that the 8900 is too vanilla to need any of
these.

  To pursue the underlying question:  What locks up, the drive or the
whole system?  What other drives are present?  What devices are shown
using IRQs?


David G

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