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Groups > comp.sys.laptops > #2379

Re: cannot power "on" ASUS laptop after power outage

From not@telling.you.invalid (Computer Nerd Kev)
Newsgroups alt.comp.periphs.mainboard.asus, alt.os.linux.ubuntu, comp.sys.laptops
Subject Re: cannot power "on" ASUS laptop after power outage
Date 2015-10-18 03:40 +0000
Organization Aioe.org NNTP Server
Message-ID <mvv4b2$9sn$1@speranza.aioe.org> (permalink)
References (4 earlier) <mvtctf$v2g$1@news.albasani.net> <s6f42bdrv5396tfmfqpl4imrjo6e896ejq@4ax.com> <mvu643$ghq$1@news.albasani.net> <mvv1oj$62e$1@speranza.aioe.org> <2h362bphku0unpsmn86i2u5lvolnl2shvc@4ax.com>

Cross-posted to 3 groups.

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In comp.sys.laptops DecadentLinuxUserNumeroUno <DLU1@decadentlinuxuser.org> wrote:
> On Sun, 18 Oct 2015 02:56:21 +0000 (UTC), not@telling.you.invalid
> (Computer Nerd Kev) Gave us:
> 
>>In comp.sys.laptops Adam <adam@no_thanks.com> wrote:
>>> 
>>> Thanks, maybe I'm missing something but
>>> if desktops can be so nicely standardized,
>>> I don't see why laptop PSUs can't be standardized
>>> in a similar manner.
>>
>>Probably because there's little commercial incentive, and as the
>>laptop power connector is going to be exposed to your average
>>"idiot user" even a voltage to plug standard wouldn't prevent
>>someone having trouble because they try to use their 12V 4.5A
>>laptop with the 12V 4A power supply from their old one.
> 
>  So what?  Supplies are rarely chosen to be fully taxed at their rated
> output, and it is in fact dangerous to put one into a design that is.

Sigh, OK make my example 12V 4A and 12V 7A then. You don't want to have
users eating into the safety margin anyway.

>  So picking one that puts out slightly less than the original is nearly
> always ok as long as it does not present too much ripple at its rated
> output.
> 
>> There'd
>>have to be a long list of probably tens of power connectors
>>designed for the different current ratings and voltages,
> 
>  You obviously did not examine the link I posted about the current,
> most commonly used standard DC connector series.  Much less know
> anything about it.

True, I thought it was a reference for what you said about 19V power
because of where you placed it in your post. But it does not prevent
miss-matching current ratings (which is what the "tens" of different
connectors would be for) and is not standard across all laptops.

>> or
>>an electronic system for identifying the right power supply
> 
>  Huh?  A PC with a 250 W supply can operate just as good as if you
> place a 1000W supply on it.  They BOTH provide the same standard  ATX
> voltages.  The PC does not suddenly puke because a more capable supply
> was placed on the system.  The system is the load, and the load does not
> magically change just because you changed the supply.

The right power supply is one with a high enough current rating. It is to
prevent the laptop equivalent of someone putting in a 250W desktop PSU to
replace a 1000W one.

>>(I think some laptops might do this, but there's no industry
>>standard).
> 
>  Laptops test voltage because battery charging circuits require a
> minimum spec to operate without puking before their basic MTBF time.
> If the voltage is too low and they did not test, they would run too hot
> trying to provide the right charging voltage to the battery, which is
> higher than the battery's topped off full voltage level.
> 
>  Non-battery driven devices typically do not have a watchdog circuit in
> them.
> 
>  Although a good ATX power supply has circuits to shut down the supply
> when it senses a current surge on some of the rails after it has been
> brought up.

Laptop PSUs should have current limiting in them too, but if a laptop
is on the edge of the maximum current from a PSU, then it could shut
down intermittently or have other problems, the cause of which may not
be clear to the user.

-- 
__          __
#_ < |\| |< _#

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Thread

cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-15 11:33 -0700
  Re: cannot power "on" ASUS laptop after power outage Mike Easter <MikeE@ster.invalid> - 2015-10-15 11:40 -0700
    Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-15 11:56 -0700
      Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-15 12:21 -0700
        Re: cannot power "on" ASUS laptop after power outage "Jonathan N. Little" <lws4art@gmail.com> - 2015-10-15 15:29 -0400
          Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-15 12:36 -0700
  Re: cannot power "on" ASUS laptop after power outage Bob_Villa <pheeh.zero@gmail.com> - 2015-10-15 11:42 -0700
    Re: cannot power "on" ASUS laptop after power outage Bob_Villa <pheeh.zero@gmail.com> - 2015-10-15 11:43 -0700
      Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-15 11:59 -0700
  Re: cannot power "on" ASUS laptop after power outage Johnny <johnny@invalid.net> - 2015-10-15 14:41 -0500
    Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-15 12:56 -0700
      Re: cannot power "on" ASUS laptop after power outage "Jonathan N. Little" <lws4art@gmail.com> - 2015-10-15 16:08 -0400
        Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-15 13:42 -0700
      Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-15 13:21 -0700
  Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-16 08:11 -0400
    Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-16 20:13 -0700
      Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-16 21:05 -0700
        Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 01:07 -0400
      Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 01:00 -0400
        Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-16 23:03 -0700
          Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 08:19 -0400
            Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-17 12:04 -0700
              Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-18 02:56 +0000
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 23:22 -0400
                Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-18 03:40 +0000
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 23:50 -0400
                Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-18 03:59 +0000
                Re: cannot power "on" ASUS laptop after power outage Onion Knight <onionknight@linuxmail.org> - 2015-10-18 11:14 -0400
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-18 11:17 -0400
                Re: cannot power "on" ASUS laptop after power outage Godzilla <godzilla@lizardboss.invalid> - 2015-10-18 15:24 +0000
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-18 17:06 -0400
                Re: cannot power "on" ASUS laptop after power outage Godzilla <godzilla@lizardboss.invalid> - 2015-10-18 22:22 +0000
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-18 11:18 -0400
                Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-18 21:01 +0000
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-18 17:10 -0400
                Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-18 13:58 -0700
      Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 01:03 -0400
      Re: cannot power "on" ASUS laptop after power outage Caver1 <caver1@inthemud.org> - 2015-10-17 09:48 -0400
        Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 10:01 -0400
          Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-20 07:50 -0700
            Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-20 12:21 -0400
              Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-20 11:17 -0700
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-20 14:33 -0400
                Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-20 11:54 -0700
              Re: cannot power "on" ASUS laptop after power outage mike <ham789@netzero.net> - 2015-10-20 12:54 -0700
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-20 16:00 -0400
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-20 16:01 -0400
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-20 16:03 -0400
                Re: cannot power "on" ASUS laptop after power outage mike <ham789@netzero.net> - 2015-10-20 14:32 -0700
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-20 19:51 -0400
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-20 16:04 -0400
                Re: cannot power "on" ASUS laptop after power outage Paul <nospam@needed.com> - 2015-10-20 19:29 -0400
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-20 20:03 -0400
                Re: cannot power "on" ASUS laptop after power outage mike <ham789@netzero.net> - 2015-10-21 00:10 -0700
                Re: cannot power "on" ASUS laptop after power outage Paul <nospam@needed.com> - 2015-10-21 03:31 -0400
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-21 08:40 -0400
                Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-21 14:22 -0700
                Re: cannot power "on" ASUS laptop after power outage Paul <nospam@needed.com> - 2015-10-21 18:32 -0400
                Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-21 18:43 -0700
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-21 08:30 -0400
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-21 08:30 -0400
        Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-17 09:07 -0700
          Re: cannot power "on" ASUS laptop after power outage Mike Easter <MikeE@ster.invalid> - 2015-10-17 10:22 -0700
            Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-17 11:39 -0700
              Re: cannot power "on" ASUS laptop after power outage Mike Easter <MikeE@ster.invalid> - 2015-10-17 12:21 -0700
                Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-17 12:36 -0700
                Re: cannot power "on" ASUS laptop after power outage "Cybe R. Wizard" <cybe_r_wizard@WizardsTower.invalid> - 2015-10-17 20:43 -0500
  Re: cannot power "on" ASUS laptop after power outage Paul <nospam@needed.com> - 2015-10-16 09:23 -0400
    Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-16 09:37 -0700
      Re: cannot power "on" ASUS laptop after power outage Marek Novotny <marek.novotny@marspolar.com> - 2015-10-16 09:39 -0700
        Re: cannot power "on" ASUS laptop after power outage "Adam" <adam@no_thanks.com> - 2015-10-16 10:19 -0700
        Re: cannot power "on" ASUS laptop after power outage "Cybe R. Wizard" <cybe_r_wizard@WizardsTower.invalid> - 2015-10-16 14:47 -0500
          Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-16 23:18 +0000
            Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-16 20:17 -0400
              Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-18 02:29 +0000
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 23:07 -0400
                Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-18 03:42 +0000
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 23:52 -0400
                Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-18 04:02 +0000
            Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-16 20:18 -0400
              Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-18 02:32 +0000
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 23:09 -0400
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 23:11 -0400
                Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-18 03:53 +0000
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-17 23:56 -0400
                Re: cannot power "on" ASUS laptop after power outage not@telling.you.invalid (Computer Nerd Kev) - 2015-10-18 04:06 +0000
                Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-18 00:58 -0400
          Re: cannot power "on" ASUS laptop after power outage crankypuss <invalid@invalid.invalid> - 2015-10-17 04:01 -0600
  Re: cannot power "on" ASUS laptop after power outage Big Bad Bob <BigBadBob-at-mrp3-dot-com@testing.local> - 2015-10-20 11:01 -0700
    Re: cannot power "on" ASUS laptop after power outage DecadentLinuxUserNumeroUno <DLU1@DecadentLinuxUser.org> - 2015-10-20 14:31 -0400

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