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<TITLE>sane-devel: Re: Problem with scan quality using UMAX Astra 1220S</TITLE>
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<META NAME="Author" CONTENT="Rod Pike (rodneyp@utanet.at)">
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<META NAME="Subject" CONTENT="Re: Problem with scan quality using UMAX Astra 1220S">
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<H1>Re: Problem with scan quality using UMAX Astra 1220S</H1>
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<!-- received="Thu Nov 16 12:00:24 2000" -->
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<!-- name="Rod Pike" -->
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<!-- subject="Re: Problem with scan quality using UMAX Astra 1220S" -->
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<STRONG>From:</STRONG> Rod Pike (<A HREF="mailto:rodneyp@utanet.at?Subject=Re:%20Problem%20with%20scan%20quality%20using%20UMAX%20Astra%201220S&In-Reply-To=<20001116211327.A967@utanet.at>"><EM>rodneyp@utanet.at</EM></A>)<BR>
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<STRONG>Date:</STRONG> Thu Nov 16 2000 - 15:13:27 PST
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0212.html">Oliver Rauch: "Re: Problem with scan quality using UMAX Astra 1220S"</A>
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<UL>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0210.html">Henning Meier-Geinitz: "Re: default device"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0182.html">Oliver Rauch: "Re: Problem with scan quality using UMAX Astra 1220S"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0212.html">Oliver Rauch: "Re: Problem with scan quality using UMAX Astra 1220S"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0084.html">Johan Bengtsson: "Re: Problem with scan quality using UMAX Astra 1220S"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0212.html">Oliver Rauch: "Re: Problem with scan quality using UMAX Astra 1220S"</A>
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<P>
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On Mon, Nov 13, 2000 at 10:44:16PM +0100, Oliver Rauch wrote:
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<BR>
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<EM>> Rod Pike wrote:
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> > > I have no idea about ide2scsi emulation. I'm not compiling my own kernel here
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</EM><BR>
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<EM>> > > so it's configured however RH6.2 ships it.
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</EM><BR>
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<EM>> > >
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</EM><BR>
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<EM>> > > That's it for the common info between for the two machines.
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</EM><BR>
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<EM>> > >
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</EM><BR>
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<EM>> > > The computer that is giving problems is as follows
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</EM><BR>
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<EM>> > > AMD-K6-2 550 ( 550 MHz )
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</EM><BR>
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<EM>> > > 128M RAM
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</EM><BR>
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<EM>> > >
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</EM><BR>
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<EM>> > > The computer that is giving a cleaner scan is as follows
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</EM><BR>
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<EM>> > > AMD-K6-2 333 ( 333 MHz )
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</EM><BR>
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<EM>> > > 64M RAM
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</EM><BR>
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<EM>> > >
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</EM><BR>
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<EM>> > I throttled my 550 MHz computer back to a 333 MHz to match my other machine and
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</EM><BR>
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<EM>> > isolated the scanner on the SCSI buss. I ensured both the scanner and the SCSI
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</EM><BR>
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<EM>> > interface were the only terminated devices on the buss. I also scanned with
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</EM><BR>
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<EM>> > two different cables. Still no improvement.
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> > Any suggestions on where I can go from here? I think I've ruled out a hardware
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</EM><BR>
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<EM>> > problem.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Hi Rod,
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> some ideas:
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</EM><BR>
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<EM>> 1) did you change the order of the pci devices (swap the scsi controller
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</EM><BR>
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<EM>> with another pci device?)
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</EM><BR>
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<P>I'm currently using an ISA interface but I got the same results from a
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<BR>
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SCSI interface
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<BR>
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<P><EM>>
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</EM><BR>
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<EM>> 2) do you use the most recent bios for the 550MHz Mainboard?
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</EM><BR>
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<P>I'm using the most recent supported BIOS update ( 1007.A for my P5A )
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<BR>
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there are beta BIOS available but I prefer to stay away from them.
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<BR>
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<P><EM>>
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</EM><BR>
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<EM>> 3) Is the voltage of the 550MHz CPU correct?
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</EM><BR>
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<EM>> Does the mainboard list the Amd K6-2/550 as supported CPU?
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</EM><BR>
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<P>Yes and yes.
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<BR>
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<P><EM>>
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</EM><BR>
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<EM>> Are you able to put the 330MHz CPU into the 550 Mhz Board?
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</EM><BR>
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<EM>> (Be careful, the my work with different voltage settings)!!
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</EM><BR>
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<P>I would like to avoid doing this but I used to have the 330 MHz CPU in
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<BR>
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this motherboard and I believe the scanning behaved the same way.
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<BR>
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<P>As I can get good scans running TWAIN, I'm doubtful that I have a
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<BR>
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hardware problem.
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<BR>
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<P>Are there any ways of tweaking the SCSI driver properties?
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<BR>
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<P>Cheers,
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<BR>
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Rod
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<BR>
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<P><PRE>
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--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20Problem%20with%20scan%20quality%20using%20UMAX%20Astra%201220S&In-Reply-To=<20001116211327.A967@utanet.at>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0212.html">Oliver Rauch: "Re: Problem with scan quality using UMAX Astra 1220S"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0210.html">Henning Meier-Geinitz: "Re: default device"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0182.html">Oliver Rauch: "Re: Problem with scan quality using UMAX Astra 1220S"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0212.html">Oliver Rauch: "Re: Problem with scan quality using UMAX Astra 1220S"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0084.html">Johan Bengtsson: "Re: Problem with scan quality using UMAX Astra 1220S"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0212.html">Oliver Rauch: "Re: Problem with scan quality using UMAX Astra 1220S"</A>
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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Thu Nov 16 2000 - 12:02:17 PST</EM>
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