Re: Seeking Help

[tomk@pro-nsdapple.cts.com (Tom Kelly)]

In <1kfrg1$7mk@agate.berkeley.edu> chiu@ucsee.Berkeley.EDU (David Chiu) writes:
>Recently I've run into a bit of odd problem with the old //e I have.
>Every attempt to download from varies different system fails regardless
>of speed, transfer protocol, or file type. Specifically file transfers
>are aborted after excessive errors after approximately 20 - 25k of
>material has been downloaded; files smaller than 25k downloads without
>problems while file larger than 25k will fail and abort soon after 25k
>"limit".
>Typically errors reported by the communication programs are 'Data Failure',
>'Header Failure', 'Checksum Failure', etc. as if it is losing characters,
>although interrupt on the serial card is enabled.
>Problem appears to be hardware related since several communication programs
>I have all shown similar problem (ProTerm 2.1, Z-Link, and ASCII Express 4.2)
>However the fault is no related to the serial card, cable or the MoDem.
>(I have several spares, and the problem persists with different combinations)
>On board diagnostic reports no error (System Ok), and varies diagnostic
>programs also report no error.
>For the life of me I can't figure out what component failure could cause
>this rather unusual (if not unque) problem.

Try removing zipchip and all "extra" cards.  Then try a large download.
If it works, put stuff back one at a time.