For what it's worth, I have had the exact same problem getting illegal
sumouts when using the modem on this 475Mhz K6 PC. Hasn't happened since
january but had been happening about once a fortnight for months, and _only_
when the modem was heavily in use (Rockwell HCF 56K Data Fax PCI Modem). I
had forgotten all about it until I read Jeramy's message. It has never
happened on any of my other PCs. Oddly enough, I have noticed on Athlons
that the iterations run about 2% faster when the modem is connected!
Steve Harris
-----Original Message-----
From: Jeramy Ross
Date: Tuesday, May 15, 2001 9:24 PM
Subject: Re: Mersenne: SUMOUT errors
>I don't really know how much help this will be since I don't know your
exact
>situation and am not a expert by any means, but here goes!
>
>First, the software modem may be a culprit. I have had problems with ones
>of the HSP variety. Most show up as 'HSP Micromodem56' or something very
>similar on your system. Most of these modems also use a chipset
>manufactured by PCTel. Fairly stable, but use a nice chunk of CPU time
when
>online, and I have received errors when I am checking email and/or surfing
>the web while using this type of modem. I have no hard evidence to tie
this
>modem to the errors, but all errors happened when I was using that modem or
>soon after (I hooked up a external modem just to see if the same would
>happen with it and I did not receive errors when using it). I have no idea
>if you have a modem similar to that one or not, but it may be the problem.
>
>Also, the electrical environment may be vastly different. I am assuming
>that where you had your computer was at school, and it is now at home. At
>my home, I have problems with various utility problems, and have been told
>by others that utility problems could cause such errors. I invested in a
>UPS with line conditioning to hopefully control some of those problems.
>Maybe one of these two things could be your problem.. I wish you the best
of
>luck in finding and fixing the problem!
>
>- Jeramy
>
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