neese@adaptex.UUCP (05/22/89)
>>In article <1883@iesd.dk> sunesen@iesd.dk (Peter Sunesen) writes: >>Do anybody have experiens with scsi harddisk controler to AT >> >>If you have information on the adaptech AHA-1542A god / bad please respond > >386^MAX gets badly bent out of shape if you try to use it with >either a WD 7000 ASC or an adaptec AHA 1540 (the one w/o the floppy >controller on it) because these cards both "borrow" a bit of high >DOS memory (for a buffer of some kind?) and 386^MAX can't handle it. > >I had to give up my SCS WREN IV (and it's > 1 Megabyte/sec transfer >rate - SOB!) because 386^MAX was more important to my application >(and you spell PC-NFS? YES: m-e-m-o-r-y h-o-g). Actually, the aha-1450 board does not steal any memory from the dos environment. What is probably biting you is 386^MAX. It puts the 386 into virtual mode and the first party DMA implementation does not get real addresses from the application. There is a driver available that fixes most 386 virtual programs. It does this by trapping int13 and setting a local buffer for moving the data to/from the SCSI card. If 386^MAX will properly honor a DOS driver, then thia will take care of the situation. Drop me an address and I will see if i can get it to you. Roy Neese Adaptec Central Field Applications Engineer UUCP @ {merch,texbell,killer}!cpe!adaptex!neese