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Subject: Re: Question About IRQs and Chessbase

Author: Bob Durrett

Date: 19:09:03 03/17/03

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On March 17, 2003 at 21:50:41, Bob Durrett wrote:

>
>I am thinking about purchasing a new computer and have a bunch of peripherals I
>would like to use with the new computer in addition to my chess software.
>
>My current computer has two USB2 ports and I have several peripheral devices.
>In other words, the computer I have is not good enough.  Currently, my color
>printer and my Chessbase software interfere with each other.  Chessbase ran fine
>until I installed the color printer driver and started using the printer.
>
>My impression is that CB8 uses an IRQ.  Does anybody know if that's right?  My
>current computer, using Windows XP Home, shows only twelve IRQs in the device
>manager.  Is that standard for Windows XP Home, or is that hardware driven?
>
>If a computer has eight USB2 ports, it seems to me that that computer ought to
>have more IRQs to handle all the extra peripherals.
>
>I sure would appreciate any help with this.  Do I misunderstand this stuff?  I
>am not a computer Guru.
>
>Bob D.


While looking at the Windows XP Home website, I ran across the following words:

"Conflicts/Sharing is located in the Hardware Resources category in System
Information. It displays devices that share the same resources, such as direct
memory access (DMA), IRQs, and memory."

This makes me wonder whether or not the conflict between CB8 and my printer or
printer driver is a DMA or memory conflict instead of an IRQ conflict.  The more
I think about it, I see no reason why CB8 should use an IRQ since it's not a
peripheral.  This makes me wonder how I am ever going to find a computer which
will allow me to use CB8 and my color printer at the same time.

Help, help, help!

Bob D.



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