If the machine physically "won't" come back on after power goes out, and 
comes back on, you could just use a normally open relay, and a normally 
closed relay.  Relay the normally open relay to the always hot wire on 
the power supply just before it goes to the motherboard, I can look up 
the pin/color if you want,.  Latch the other relay which is normally 
closed tot he +12v of a hard drive connector.  So that when the power 
supply goes hot, the circuit completes and clicks on the machine, when 
+12 clicks hot, then the circuit opens, and machine stays on.

Kris
Joe Cho wrote:

> Hi, all,
>  
> I am cautiously asking this basic question how to make the computer auto 
> boot after the power back on.
> I don't have much knowledge about Hardware how to make it auto boot 
> after the power
> disrupt and come back, most time, it takes only few seconds.
> Since I have used this computer as a server on Redhat 8.0 Linux.
>  
> The real problem is that the computer I am using ( due to my financial 
> budget) is Emachine model T2042. Originally it come with Windows XP Home 
> edition and doesn't auto boot after the power was interrupt.
>  
> So, most time I forgot whether there was the power was didisruptedr not.
> whenever I try to access this machine, I realize that the system was 
> down. and I had to boot manually.
>  
> It would be nice to have the system auto boot after the power was ddisrupted
> 
> Here's the specification for Emachine T2042 below:
> 
> *Specifications of eMachines T2042*
> 
>     * Microsoft® Windows® XP Home Edition
>     * Intel® Celeron® Processor 2 GHz (w/128KB L2 cache & 400MHz FSB)
>     * Intel 845GL Chipset
>     * 7.25"w x 14.125"h x 16"d
>     * 40 GB HDD
>     * AOL 3 month membership included, click here
>       <http://www.emachines.com/news/aol.html> for details
>     * 128 MB DDR (P2100)
>     * 56K* ITU v.92 ready Fax/Modem
>     * 10/100Mbps built-in Ethernet
>     * 40x12x40 Max. CD-RW Drive; 16x Max. DVD Drive; 3.5" 1.44MB FDD
>     * Multimedia Keyboard, 2-Button Wheel Mouse, Stereo Speakers
>     * AC '97 Audio
>     * Intel Extreme Graphics 3D (845GL shared)
>     * 6 USB 2.0 ports (2 on front), 1 Serial, 1 Parallel, 2 PS/2,
>       Microphone-In & Head Phone jack on front, Audio-In & Out, 3 PCI
>       slots (2 available).
> 
> 
> Is there anything I can do or something I can do for making auto boot???
> 
> 
> Thanks in advance,
> 
>  
> 
> Joe Cho
> ksjoecho@yahoo.com <mailto:ksjoecho@yahoo.com>
> 
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