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Promise Ultra 100 (Non-RAID) only uses 1 IRQ?

N

Noriaki

Lifer
Is that normal...for it to use 1 IRQ for both channels?
I have both channels enabled...I only have a CDRW on it..maybe that's why? It automatically disables the 2nd channel?

Or is it just becuase i'm in Win2000 and everything gets IRQ9..but my ATi TV-Wonder has 9 and 11...

hmmm anyone know why it's only using 1 IRQ?
 
Yes, the Promise controllers only use one IRQ for both channels. The system sees the controller as one device.

Onboard controllers use 2 IRQ's, one for each channel, because the system sees each channel as a separate device (even though the IDE controller is integrated into the chipset and could theoretically only use one IRQ if designed right and with the right drivers).

Your ATI card would be using two IRQ's because one is for the AGP card itself, the video chip, and one is for the TV tuner part of it. (Errr...unless that's ONLY the TV tuner card, in which case I don't know why it would be using two IRQ's.)
 
It's just a separate TV-tuner...I have no idea why it uses two IRQs..
one is Video something, one is Audio something...
NFS4's does to
apperntly the video adn audio need different IRQs

thanks for the explain on the promise.
 
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