Re: [PLUG] ATX Power Connector Charring and Random Rebooting

["Michael D. Barlow" <mdbarlow@comcast.net>]

Well,, The good news is you have a new power supply on the way.

Two things cause a connector to burn up

	1st thing is a loose connection at the connector causing the connector to  
heat up.(not likely)

	2nd thing and more likey is too much current being drawn through that  
particular contact point.
		Could be a short, or ground fault
		could be an undervoltage at 5v.  Voltage goes down, current draw goes  
up  (voltage regulator in power supply is bad)
Hopefully, the power supply going bad did not damage the Mboard, however,  
if the machine is mission critical then it is time to buy a new main  
board.  I would not trust it at this stage.

A possibility is that hard drive is the failure point.  Usually the  
peripherals are the failure point on a system.

Give the power supply a shot, if that does not work then start  
troubleshooting it down.

Hope this helps

peace

On Thu, 21 Oct 2004 12:07:32 -0400, Paul <gyoza@comcast.net> wrote:

> Need opinions.  The question is, would a bad power supply cause charring  
> at the ATX connector on the motherboard, or is the real problem on the  
> motherboard itself?  Now for the details.
>
> According to this diagram, http://xtronics.com/reference/atx_pinout.htm  
> , +5V pins 4, 6, 19, and 20 (all red wires) are charred at the ATX  
> motherboard connector.  I had to pry the connector loose with a screw  
> driver.  Pins 4 and 20 actually lost parts of their plastic insulators.   
> When the PC was running (I don't risk switching it on anymore.)  
> everything worked as expected, but sometimes the entire system would  
> blink off and reboot.  Sometimes it would reboot upon reaching the drive  
> detection phase.  Sometimes it would reboot after the OS had been loaded  
> and running for a while.
>
> None of the other connectors have any damage.
>
> (I did order a new power supply based on the symptoms before I even  
> noticed the charring.  Antec True Power 380W, about $60, to replace the  
> stock 350W PowMax piece of poop.  They really put the "Pow" in PowMax!)
> ___________________________________________________________________________
> Philadelphia Linux Users Group         --         
> http://www.phillylinux.org
> Announcements -  
> http://lists.phillylinux.org/mailman/listinfo/plug-announce
> General Discussion  --    
> http://lists.phillylinux.org/mailman/listinfo/plug



--
Using Opera's revolutionary e-mail client: http://www.opera.com/m2/
___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug