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simostam
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hp z400 power button/led and hood sensor

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hp z400

hi there, i'm assembling a new pc using an hp z400 motherboard. some problems occours. 
1- the original power button cable ha a elettronic component  (feel like a diod) and i haven't because i don't have the cable because i've bought a new case wich have standard plug e play pin.is that component necessary to start the pc? 
2- searching and searching i saw thatthere is a hood sensor. is that sensor necessary to start the pc? how can i bypass thi sensor? (i'ts a normal switch, with two cable but at the motherboard i've 3 pins so i guess that the first and the third can be connected together to bypass an send a always closed signal to the pc 

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SDH
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More research is needed... google "xw6600 pinout" and get the top Word document link that comes up..... I wrote that years ago.

 

Almost never was a hood sensor installed, and it has nothing to do with startup.

 

That is a thermisitor for ambient temp sensing.  It feeds back into the motherboard fan speed control system, and is important.

simostam
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Tell me if i've understand. That switch don't Need to start the computer but only for external thermal temperature?
About the xw6600 pinout i havn't . I have the 24 pin so i found a wiring connection betwen than and a normal atx and i provide ti recable my atx cable in the right alimentation and i Hope It turn on . I saw someone do this job for the z400
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SDH
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That cable has multiple functions, including on/off, LED signals out from the motherboard, and it has an embedded thermisitor.

 

Download that document as a .doc file.... you'll find it valuable.  Use this forum's search box up at the top left.... it searches only this forum.  There is a treasure trove of answers for you there.

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simostam
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please, can i have a link of that doc file? i'm tremendous noobie on this forum, i try to search but without results :Crying:

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SDH
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Try this,  HERE.

 

Save it with the extension .doc and it is a MS Word file.  Understand that this is not a HP file..... it is the result of a lot of people trying to figure things out and it will be a help but will not be perfect.  Good luck with your project.

 

Here is the google top result from my computer...... 

 

xw6600 pinout.jpg

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