Re: [PARPORT] Slow Zip drive access in Red Hat 8.0

From: Chris Abrams (
Date: Thu Feb 06 2003 - 12:26:42 EST

  • Next message: Robert Heller: "Re: [PARPORT] Slow Zip drive access in Red Hat 8.0"

    On Thu, 2003-02-06 at 16:38, Tim Waugh wrote:
    > On Thu, Feb 06, 2003 at 03:52:25PM +0000, Chris Abrams wrote:
    > > I don't think I have an ECP/EPP parallel port but why does the system
    > > choose PS/2 to communicate with the zip drive?
    > Are you sure you don't have an EPP-capable parallel port? I'd be
    > surprised. Check your BIOS settings. (It's EPP you want for Zip
    > drives.)
    > It uses PS/2 since that's the next fastest protocol that the Zip drive
    > speaks.
    > Tim.
    > */

    OK, I've checked out my BIOS and I have three settings for my parallel

    Auto: BIOS or OS chooses configuration

    The default setting is Auto, which is how it was when I installed Red
    Hat. Within Enabled there are three further categories: Output Only,
    Bi-directional and ECP/EPP. I've tried each of these and in all cases
    read and writes to and from the zip drive are incredibly slow. In the
    ECP/EPP setting the parameters for the parallel port are:

    Base I/O Address : 378
    Interrupt : IRQ7
    DMA Channel : DMA3

    Any further suggestions?



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