Re: TWGS questions

[supertimer@aol.com (Supertimer)]

spec@vax2.concordia.ca (Mitchell Spector) wrote:

>In article brian.hammack@rook.wa.com (Brian Hammack) writes...
>
>>Hey all...  I just acquired a TransWarp GS card and for the most part
>>it works nicely, but I keep getting these lockups [in 16 bit but not
>>8-bit software]
>
>    Examine the ribbon cable that plugs into the 40-pin CPU socket
>on the IIgs motherboard. There should be a black dot somewhere on
>it--if not, you have one of the original (flakely) cables Applied
>Engineering made a policy of replacing.
>
>    The old cables made the card very, very unstable. I confirmed
>that was true with my 6 MHz TransWarp GS, and one of the reasons
>it has been boxed up and put into storage for the past 4-5 years
>now. AE may no longer be around, but you can purchase a home-made
>replacement cable with gold tipped pins for around US$14 (I can't
>remember who offered this service, maybe Bill Shuff? A Dejanews
>search should help track him down).

I disagree because failing in 16-bits first is a sign of a failing
65C816 of the old design.  Those chips exhibit this symptom
when pushing beyond 7Mhz or so.  However, as a chip ages,
the failure threshold may drop below the original 6Mhz.

If it were the cable, then 16 and 8 bit software will fail at the
same time.