Re: Need help with zip drive

[bjblackbear@ibm.net (B.J. Major)]

Nathan Mates <nathan@visi.com> wrote:

> In article <199710241000393074021@slip129-37-106-92.wa.us.ibm.net>,
> B.J. Major <bjblackbear@ibm.net> wrote:
> >Your luck has not run out yet, but I wouldn't push it.  There is
> >*always* a possibility that SCSI devices won't be recognized if they are
> >not fully powered on before a cpu. From what I've read, you run the risk
> >of either frying out the motherboard on the cpu (with the sudden power
> >surge of all the devices running through the already-powered-on cpu at
> >once) OR ruining your SCSI port/connection, period, if you do not power
> >them on before the cpu.
> 
>    I don't know what rumormongering scare publications you read, 

I can quote you all the facts right from my *textbooks* if you like....

> but
> there are plenty of computers right now that are powering on the SCSI
> at the same time as the motherboard. Macs, PCs, and workstations with
> builtin SCSI devices all power them on at the same time as the
> processor.  [I've proven that at home and at work with my PCs--
> running with the case off, both the SCSI HD and the CPU fire up as
> soon as I flip the switch. Same with the internal Pegasus HD in my ROM
> 3 GS.]

But we're not talking about an internal SCSI chain, we're talking about
an *external* one.  If you want to power on your PC & GS setup
simultaneously, go right ahead.  But you refer to a Mac setup above, and
you don't *have* a Mac setup.  I do, with quite a lengthy external SCSI
chain.  If you have a Mac setup with an external SCSI chain, you power
on the SCSI chain FIRST.  No exceptions.  External hard drives in
particular take a few seconds to spin up and if you power on the CPU
first (or simultaneously), the driver will not be read and the drive
will not be acknowledged.  My Mac setup at work has both an internal &
external SCSI chain.  I have all the external SCSI devices on one power
strip that is turned on FIRST, then I turn on the CPU which has two of
its internal SCSI items in the CPU case.

> 
>    Please make sure your facts match reality before you go around and
> try to pass them on.

Sorry, but you can't prove me wrong in this one.  I'll be glad to quote
sentences out of Apple's own Mac manuals as well as the Macintosh Bible
if you're still in doubt.

-- 
--bj    Auto reply will not work; please remove "black" to reply.
Proud owner/user of Apple Computers since 1984.  
"None of my computers do Windows."