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- From: hinr@hobo.ECE.ORST.EDU (Robert Hinz)
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: PB HD Warning
- Message-ID: <1992Aug18.042022.5409@talon.ucs.orst.edu>
- Date: 18 Aug 92 04:20:22 GMT
- References: <1992Aug13.015723.8181@talon.ucs.orst.edu> <1992Aug13.073938.11782@athena.mit.edu> <l8l9dnINNnrc@dimebox.cs.utexas.edu>
- Sender: usenet@talon.ucs.orst.edu (Usenet News admin)
- Organization: ECE Dept.,OSU,Corvallis
- Lines: 25
-
- In article <l8l9dnINNnrc@dimebox.cs.utexas.edu> werner@cs.utexas.edu (Werner Uhrig) writes:
- >
- > the manual states to shut it down (but it does not enumerate or
- > warn about the exact concerns and dangers);
- >
- > I suspect that "sleeping" would be ok sometimes, EXCEPT that
- > as the machine is still on, the battery gets drained (faster)
- > and that motion and pressures might cause the drive to wake/spin
- > up, and that would be BAD NEWS indeed....
- >
- An interesting twist...on the PB 100 booting the machine requires that you
- press a key. Un-Sleeping the machine is accomplished in the same manner.
- When you boot the machine the HD spins up. When you 'wake' the machine up
- the HD does not spin up. If the heads are parked when sleeping, is it
- safer to transport a sleeping PB 100 than a Shut Down one? Probably the best
- way is to Shut Down and turn off the battery switch. I'm sure you all will
- do that every time! ;-). Another issue regarding the PB 100. The PB 100 does
- not loose the RAM disk when Shut Down. This means that power is maintained
- to the RAM in the Shut Down state. Why then would Sleep be any worse for
- battery drain. Just some food for thought!
-
- Rob Hinz
- Electrical and Computer Engineering
- Oregon State University
- hinr@ece.orst.edu
-