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Groups > comp.sys.mac.portables > #1280

Re: Unable to boot up a 15" 2008 MacBook Pro.

Subject Re: Unable to boot up a 15" 2008 MacBook Pro.
Newsgroups comp.sys.mac.portables, comp.sys.mac.system, comp.sys.mac.systems
References (4 earlier) <T_Gdnd9wha3SUTvBnZ2dnUU7-QWdnZ2d@earthlink.com> <050420190829494975%nospam@nospam.invalid> <qYydnZ4WX4YxOjrBnZ2dnUU7-cmdnZ2d@giganews.com> <00OpE.1228$g16.883@fx26.fr7> <q88ccb$rv$1@reader2.panix.com>
From David in Devon <BDonTJ@REMOVE.gmail.com>
Message-ID <U4QpE.61916$0n2.40752@fx28.fr7> (permalink)
Organization blocknews - www.blocknews.net
Date 2019-04-05 22:50 +0100

Cross-posted to 3 groups.

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On 05/04/2019 21:04, danny burstein wrote:
> [snippeth]
> 
>>>> don't do that. without a battery, it will run significantly slower and
>>>> there is also the risk of a sudden shutdown if there's a power glitch.
>>>
>>> Why would it run slower if it's on its main power connector?
> 
>> Exactly why *I* asked nospam.
> 
> this is, indeed, a real issue.  Sometimes...
> 
> The power draw as the drive starts spinning up might easily
> be more than the transformer can provide.
> 
> For argument's sake, let's just say the wall wart can
> provide 50 watts. The basic draw of the unit might
> be 35. Call it 45 when charging the battery.
> 
> However, when the drives start up (and other items
> with initial surges, too), they might be trying to
> get 100 watts.  Yeah, only for a couple of seconds,
> or maybe just a fraction of one, but that's more
> than the power cord will have at hand.
> 
> The battery provides those extra electrons...

This sounds plausible. Thank you.

Perhaps a failing in early Apple laptops?

I have no experience of an Apple laptop - just an iMac for the past 10 
years and an iPad and iPhones for less time.

D.

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Thread

Unable to boot up a 15" 2008 MacBook Pro. ant@zimage.comANT (Ant) - 2019-04-02 13:05 -0500
  Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-02 11:12 -0700
    Re: Unable to boot up a 15" 2008 MacBook Pro. ant@zimage.comANT (Ant) - 2019-04-02 13:23 -0500
      Re: Unable to boot up a 15" 2008 MacBook Pro. YK <xxxxx@dialme.com> - 2019-04-02 19:29 -0400
        Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-02 16:31 -0700
      Re: Unable to boot up a 15" 2008 MacBook Pro. ErikRS <mac-dane@is.invalid> - 2019-04-04 21:10 +0200
        Re: Unable to boot up a 15" 2008 MacBook Pro. Wade Garrett <wade@cooler.net> - 2019-04-04 18:22 -0400
          Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-04 18:36 -0400
            Re: Unable to boot up a 15" 2008 MacBook Pro. Wade Garrett <wade@cooler.net> - 2019-04-08 09:57 -0400
          Re: Unable to boot up a 15" 2008 MacBook Pro. Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-04-05 04:04 +0000
            Re: Unable to boot up a 15" 2008 MacBook Pro. Wade Garrett <wade@cooler.net> - 2019-04-08 10:10 -0400
          Re: Unable to boot up a 15" 2008 MacBook Pro. ErikRS <mac-dane@is.invalid> - 2019-04-07 14:47 +0200
        Re: Unable to boot up a 15" 2008 MacBook Pro. ant@zimage.comANT (Ant) - 2019-04-04 22:32 -0500
          Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 08:29 -0400
            Re: Unable to boot up a 15" 2008 MacBook Pro. Jolly Roger <jollyroger@pobox.com> - 2019-04-05 15:52 +0000
              Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 12:40 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 17:49 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 12:54 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 17:59 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 13:10 -0400
            Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-05 15:08 -0400
              Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 20:29 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 15:35 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 21:59 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 17:04 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:31 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-05 14:33 -0700
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:36 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-05 14:55 -0700
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 17:37 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-05 14:56 -0700
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 18:01 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Panthera Tigris Altaica <northentiger@outlook.com> - 2019-04-05 18:07 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-05 15:15 -0700
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-05 14:08 -0700
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:32 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 17:37 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Panthera Tigris Altaica <northentiger@outlook.com> - 2019-04-05 17:35 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. danny burstein <dannyb@panix.com> - 2019-04-05 20:04 +0000
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 16:26 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:50 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 18:01 -0400
              Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 15:35 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 20:40 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. danny burstein <dannyb@panix.com> - 2019-04-05 20:05 +0000
                Re: Unable to boot up a 15" 2008 MacBook Pro. Jolly Roger <jollyroger@pobox.com> - 2019-04-05 20:06 +0000
                Re: Unable to boot up a 15" 2008 MacBook Pro. Panthera Tigris Altaica <northentiger@outlook.com> - 2019-04-05 16:17 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Panthera Tigris Altaica <northentiger@outlook.com> - 2019-04-05 16:14 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:19 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 17:37 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:44 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 17:50 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-08 16:55 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 10:40 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-06 11:29 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 15:13 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-04-06 19:57 +0000
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 17:08 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-07 21:05 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-06 15:58 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Jolly Roger <jollyroger@pobox.com> - 2019-04-06 20:04 +0000
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 17:10 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 17:13 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-07 21:05 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-08 11:58 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-08 10:07 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-08 16:11 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-08 11:19 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-08 20:23 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 17:29 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-07 21:05 -0400
              Re: Unable to boot up a 15" 2008 MacBook Pro. ant@zimage.comANT (Ant) - 2019-04-05 21:55 -0500
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-06 09:52 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-06 08:00 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-06 08:00 -0400

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