Re: [SLUG] No Post screen

From: Paul Bransford (draeath@gmail.com)
Date: Tue Jul 21 2009 - 00:45:21 EDT


Bob Stia wrote:
> On Monday 20 July 2009 12:03:21 Eben King wrote:
>> On Sun, 19 Jul 2009, Bob Stia wrote:
>>> This has been going on for years but now I have to fix it. Every day when
>>> I boot up my machine (I have a toggle on a surge protector which fires
>>> everything up. monitor, printer, etc, and supplies power to the computer
>>> itself) However, the computer itself needs to be started independently by
>>> pushing a button on the front of the case. Everytime I do this i get a
>>> blank black screen. Nothing - nada. I have to push the button and hold it
>>> until the computer shuts down, re-push the button to start the computer
>>> again. This time the POST starts and the computer boots normally. Happens
>>> every time.
>> Is the monitor still in "sleep" mode until the OS starts to load? Or
>> has it woken up fully and is actually displaying an all-black signal?
>> If it's still sleeping, what I suspect is this:
>>
>> computer: power | POST | OS | reboot POST | OS | off
>> monitor: power | sleep | on ------------------ | off
>>
>> Or, it's so slow at warming up (is it a CRT?) that the POST passes before
>> it finishes. (I used to have a monitor like that.)
>
> Hello Ronan, Paul, Seth, Eben,
>
> Thanks for replying.
>
> If you mean firmware update = bios?, then it is running the latest available.
>
>> This could potentially be a problem with the power supply.
>>
>> If you were to wait, say, 5 minutes.. before you try to turn on the
>> computer after you turn everything else on, what happens?
>
> Hmmm...don't know but will try it. Never waited that long. The power supply is
> a big one for the time I bought it. An Enermax 460 watt. Should be more than
> adequate. Really hope that I don't have to find specs on all the components.
>
> Thinking way back, this box had a CRT monitor and didn't have a problem. The
> LCD can't draw more than the LCD, can it?
>
> And Eben, not sure what you mean by "sleep" mode. The monitor was just powered
> up less than a minute before. I don't have any power saving turned on and
> even at that it wouldn't come into play until after it is booted, right? and
> no, it is an lcd, Samsung Syncmaster 213T. Does a monitor sleep at "power
> up/on" until the OS wakes it up?
>
> When I don't get the Post the first time I get alternating messages that flash
> on the screen. "digital" "analog" until I shut the OS down and restart the
> box.
>
> Bob S
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The wattage of the power supply doesn't have anything to do with it
failing, these things can die after a time. Sure, loading it close to
(or overloading) it's capacity can shorten it's life, but that's not
what I'm after right now.
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