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Re: What are basic diagnostic tests on a Windows laptop that won't boot?

From Paul <nospam@needed.com>
Newsgroups alt.windows7.general, comp.sys.hp.hardware, sci.electronics.repair
Subject Re: What are basic diagnostic tests on a Windows laptop that won't boot?
Date 2014-05-26 01:29 -0400
Organization A noiseless patient Spider
Message-ID <llujg5$8pr$1@dont-email.me> (permalink)
References <llucdm$jre$1@news.albasani.net>

Cross-posted to 3 groups.

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Calia wrote:
> Those of you with experience troubleshooting a dead
> laptop, can you provide advice?
> 
> I have a Windows 7 HP G72 laptop which suddenly stopped working.
> Do you have an idea how to do basic troubleshooting?
> 
> What happens when I try to reboot is that nothing shows
> up on the 17-inch screen whatsoever. 
> 
> The only indicators are the fan and a half dozen LEDs.
> 
> The fan is most notable. 
> When I press the power switch, the fan goes on for what
> I timed at 40 seconds. Then the fan goes off.
> 
> The white LED to the immediate left of the topside power 
> switch glows white when the computer is turned on. 
> 
> The orange and white LED next to the power input on the
> right side of the pc also glows either orange or white.
> 
> The white capslock key LED blinks white synchronously with
> the NumLock key. The F12/WiFi function key glows orange.
> 
> The tiny LED on the DVD tray button does not light, nor
> will the DVD tray open unless I insert a paperclip.
> 
> I found this "maintenance guide" but it doesn't seem to
> list these conditions:
> http://h10032.www1.hp.com/ctg/Manual/c02623152.pdf
> 
> Those of you with experience troubleshooting a dead
> laptop, can you provide advice?
> 
> Mainly I just want to know if I can pinpoint the failure
> and then I can see whether it's worth trying to fix.
> 

Black screen with blinking error code LEDs are described here.

Try to match the table info, to your machine. Applies to
UEFI BIOS machines.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01443366&cc=us&dlc=en&lc=en

And this is my proof that a G72 may be using a UEFI BIOS.

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-88666-1&lc=en&cc=hr&product=4293043&os=4062

    Paul

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Thread

What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 03:28 +0000
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 03:33 +0000
    Re: What are basic diagnostic tests on a Windows laptop that won't boot? pjp <pjp_is_located@hotmail.com> - 2014-05-26 00:50 -0300
      Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 04:15 +0000
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Geoff <public@email.com> - 2014-05-26 03:56 +0000
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Jeff Liebermann <jeffl@cruzio.com> - 2014-05-25 21:13 -0700
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 04:18 +0000
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 04:28 +0000
    Re: What are basic diagnostic tests on a Windows laptop that won't boot? Paul <nospam@needed.com> - 2014-05-26 01:24 -0400
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 05:06 +0000
    Re: What are basic diagnostic tests on a Windows laptop that won't boot? Jeff Liebermann <jeffl@cruzio.com> - 2014-05-26 00:11 -0700
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 05:23 +0000
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Paul <nospam@needed.com> - 2014-05-26 01:29 -0400
    Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 05:41 +0000
      Re: What are basic diagnostic tests on a Windows laptop that won't boot? Paul <nospam@needed.com> - 2014-05-26 01:50 -0400
        Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 06:53 +0000
          Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 06:57 +0000
            Re: What are basic diagnostic tests on a Windows laptop that won't boot? Paul <nospam@needed.com> - 2014-05-26 03:17 -0400
          Re: What are basic diagnostic tests on a Windows laptop that won't boot? Jeff Liebermann <jeffl@cruzio.com> - 2014-05-26 00:15 -0700
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 05:29 +0000
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 05:51 +0000
    Re: What are basic diagnostic tests on a Windows laptop that won't boot? Paul <nospam@needed.com> - 2014-05-26 02:23 -0400
    Re: What are basic diagnostic tests on a Windows laptop that won't boot? Charlie+ <charlie@xxx.net> - 2014-05-26 09:33 +0100
    Re: What are basic diagnostic tests on a Windows laptop that won't boot? "J. P. Gilliver (John)" <G6JPG@soft255.demon.co.uk> - 2014-05-27 00:00 +0100
      Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-27 02:37 +0000
        Re: What are basic diagnostic tests on a Windows laptop that won't boot? "J. P. Gilliver (John)" <G6JPG@soft255.demon.co.uk> - 2014-05-28 22:41 +0100
      Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-27 02:38 +0000
        Re: What are basic diagnostic tests on a Windows laptop that won't boot? "William Sommerwerck" <grizzledgeezer@comcast.net> - 2014-05-27 06:40 -0700
        Re: What are basic diagnostic tests on a Windows laptop that won't boot? "J. P. Gilliver (John)" <G6JPG@soft255.demon.co.uk> - 2014-05-28 22:48 +0100
      Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-27 02:40 +0000
        Re: What are basic diagnostic tests on a Windows laptop that won't boot? "J. P. Gilliver (John)" <G6JPG@soft255.demon.co.uk> - 2014-05-28 22:57 +0100
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Ken <Ken@invalid.com> - 2014-05-26 06:43 -0500
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 12:47 +0000
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Wolf K <wolfmac@sympatico.ca> - 2014-05-26 09:40 -0400
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Wond <gboot.phil@gmx.com> - 2014-05-26 14:44 +0000
    Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 17:39 +0000
      Re: What are basic diagnostic tests on a Windows laptop that won't boot? pjp <pjp_is_located@hotmail.com> - 2014-05-26 14:47 -0300
  Re: What are basic diagnostic tests on a Windows laptop that won't boot? Calia <calia@its.invalid> - 2014-05-26 17:37 +0000
    Re: What are basic diagnostic tests on a Windows laptop that won't boot? Jeff Liebermann <jeffl@cruzio.com> - 2014-05-26 10:52 -0700
    Re: What are basic diagnostic tests on a Windows laptop that won't boot? "William Sommerwerck" <grizzledgeezer@comcast.net> - 2014-05-26 11:49 -0700
      Re: What are basic diagnostic tests on a Windows laptop that won't boot? Jeff Liebermann <jeffl@cruzio.com> - 2014-05-26 16:03 -0700

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