[linux-help] Re: Problem

[ironrose <ironrose@xxxxxxx>]

Glad to hear that you found the solution.  I have had this problem with 
some the new pcs that I built.  Some of the new mobos require a 400 watt 
power supply and I thought for sure that my 350 watt would work, but it 
didn't.  Learn something new every day.  ~Anne

Wayne White wrote:

>Well, silly me. My "known good" power supply wasn't.
>
>Thanks for the suggestions gentlemen.
>
>wayne
>
>
>At 03:02 PM 11/29/2005 -0600, you wrote:
>  
>
>>On Tue, 2005-11-29 at 10:31 -0600, Wayne White wrote:
>>    
>>
>>>I'm having problems with a computer and thought that there might
>>>be someone on the list that had some thoughts on a solution.
>>>
>>>Monday, last week, I got to work and my computer was off. I tried
>>>to turn it on and nothing happened. I was able to determine that
>>>the power cord had power at the plug to the power supply.
>>>
>>>When the power button on the computer was pressed, nothing
>>>happened at all. No lights, no whirring, no beeps.
>>>
>>>The first thing that I tried was swapping out the power supply for
>>>one I know to be good. Same result, nothing happens when power
>>>button pushed.
>>>
>>>That made me think that the motherboard must have fried. So, I
>>>swapped in a good motherboard. While the case was open, I
>>>checked the switch on the front panel and had continuity when
>>>it was pressed. Still nothing doing.
>>>
>>>I'm at loss as to what else might be causing this computer to act
>>>as if it were getting no power at all when I try to start it up.
>>>
>>>Any ideas?
>>>
>>>      
>>>
>>lets see if I have this correct.
>>1.  replaced power supply
>>2.  replaced mobo
>>3.  You said you checked the line voltage OK, but did not say what it
>>is. (Should be approximately 115vac)  Make sure you check it at the
>>computer end of the cord.
>>
>>after all that it still will not power on.
>>Hmmmmmmm.
>>
>>
>>A.  Have you tried with a small tool to momentarily jump the power
>>switch pins on the mobo?  That simulates a switch press and will remove
>>the switch and wire from the picture.
>>
>>B.  Did you use the same cpu and memory on the newly installed mobo?  If
>>so there is another bit of hardware to test. The system will not even
>>attempt to power on with a failed cpu. Some mobos will not try to power
>>on if the cpu fan is not functional.
>>
>>C.  Did you test power on with all unnecessary items disconnected?  Disk
>>drives, adapters, etc are not required for testing power-on problems.
>>Try disconnecting all cables (power, signal, etc) from the disk drives
>>and removing any adapters not necessary for power on. Probably video is
>>the only adapter needed. A single load that is too high can prevent
>>power on.
>>
>>    
>>
>>>Thanks in advance,
>>>
>>>wayne
>>>
>>>
>>>
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>>>      
>>>
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>>
>
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>  
>


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