Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!evax!utacfd!merch!cpe!adaptex!neese
From: neese@adaptex.UUCP
Newsgroups: comp.unix.sysv386
Subject: Re: <21688@scuzzy.mbx.sub.org>
Message-ID: <77900003@adaptex>
Date: 10 Sep 90 16:14:00 GMT
References: <21688@scuzzy.mbx.sub.org>
Lines: 23
Nf-ID: #R:scuzzy.mbx.sub.org:21688:adaptex:77900003:000:750
Nf-From: adaptex.UUCP!neese    Sep 10 10:14:00 1990


>>>Here are the various setting for the DMASPEED:
>
>>>0 =	5.0  MBytes/sec
>>>1 =	6.7  MBytes/sec
>>>2 =	8.0  MBytes/sec
>>>3 =	10.0 MBytes/sec
>>>4 =	5.7  MBytes/sec
>
>>hmm. where did you get these values from? the 154[02]A manual is different.
>>the 1540(without A) manual defines these. (not sure about the last one).
>
>i *think* i now know The Real Truth (tm :-) ! the above table should be
>the one for the *software*. the *jumpers* on the board allow you to set
>5, 5.7, 6.7 and 8 MB/sec in that order. am i correct ?!

Correct.  Also remember that software selection will override the jumpers
for the DMA rate.

			Roy Neese
			Adaptec Senior SCSI Applications Engineer
			UUCP @  uunet!swbatl!
				  {nominil,merch,cpe,mlite}!adaptex!neese