sra@idx.com (04/12/91)
After much discussion with STB, it seems they inadvertently released a batch
of STB PowerGraph boards with "out-of-spec" Tseng 4000 chips on them.
Attributes include (1) taking a long time to change modes, and (2) sometimes
not controlling analog output enough (which causes good monitor with
overvoltage crowbars to let loose). Additionally, VIDSPEED gives performance
about 1/2 normal (25 Mhz 386 gives 1220 +/-, should be about 3000?)
You can tell if the board says "Rev B" and the Tseng chip has a BLACK letter
"A" or "B" on it. There may also be problems on "Rev C" boards.
Good news: call them and they'll arrange a board swap at no cost..
steve
/------------------------------------------------------------------------\
> Steve Alpert (W1GGN) IDX Corporation Marlborough, Massachusetts <
\--------------------------- sra @ idx.com ------------------------------/