DMA (maybe) and tape drive problem (PANIC)

John Watson usenet at carssdf.UUCP
Thu Aug 23 10:37:16 AEST 1990


I have a similar problem on a 486 card.  The card with the Intel/Zymos
80..31 80..32 2 chip set is OK (I forget the whole number).  Another
486 that has its own 128K cache using the "OPTI" chipset and an 80C206
peripheral/DMA/CMOS chip crashes whenever I use 2 dma devices at the
same time, like floppy or archive tape in combination with hard disk.
The hard disk is a 600meg ESDI with 4 Meg cacheing controller by 
Consensys (Toronto Canada).  Panic, Double Panic etc..    I am trying
things like a different 80c206, or different 80c206 vendor, Semens and
Chips & Tech. both make it.  So far I have only tried Semens.  If this
helps you good luck.  If you have related info, pls pass on.  Incedentally,
other than this minor/fatal flaw it is the fastest system I have ever seen.
This is not in the same league with 386's.

John Watson       ...!carsdf!usenet



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