Path: rQdQ!remarQ73!supernews.com!remarQ.com!howland.erols.net!hub1.ispnews.com!typ42b.nn.bcandid.com.POSTED!southwind.net!not-for-mail From: shack@onyx.southwind.net (Randy Shackelford) Newsgroups: comp.sys.apple2 Subject: Re: SCSI mod success! Organization: SouthWind Internet Access, Inc. Lines: 20 Message-ID: <7lvmjf$jag$1@onyx.southwind.net> References: <3782AFCF.522A4D10@swbell.net> NNTP-Posting-Host: 206.53.103.2 X-Trace: typ42b.nn.bcandid.com 931356099 206.53.103.2 (Wed, 07 Jul 1999 10:01:39 EDT) NNTP-Posting-Date: Wed, 07 Jul 1999 10:01:39 EDT Date: 7 Jul 1999 09:01:19 -0500 Xref: rQdQ comp.sys.apple2:147663 In article <3782AFCF.522A4D10@swbell.net>, Rubywand wrote: >> Also I recall David Empson expressing some reservations about have the >> card provide the termination -- any reason to get nervous? > .... > > David's main concern seemed to be possible current demands upon the >computer for Termination Power supplied through the SCSI interface. Unless you >connect some old dinosaur hard drive which also does not supply Term Power, >there should be no problem. (And, the small diode recommended for the mod would >act like a fuse for any really heavy load.) The reason why Apple SCSI cards (and Mac Pluses and Powerbooks) don't supply terminator power is that it's power supply intensive. That's what I've always heard anyhow. I thnik the best thing to do would be have something that supplies power connected. My IIgs' SCSI bus has digital active termination, and it never has given so much as a hiccup. -- Offsite mail to this host gets nuked.