PC Chips PSKBM1 V1.6A power question

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Trina's Technobabble

New Tinkerer
Oct 28, 2021
6
2
3
So I have this motherboard and it has a 6-pin power connector. It came with the power connector that was cut off a PSU. today I tried connecting it to a bench power supply and it turns on but does not post. I noticed that there are only 3 yellow cables and 2 black wires coming out of the power connector. I am wondering if it is missing wires to make it fully turn on? I tried several googles searches and only can find either these boards for sale or the manual which is just a high end overview of the board and the computer it came in. I am unable to find anything regarding the power. Please see the attached photos of the board, the label on the board and the power connector.
 

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bakkus

Moderator
Staff member
Mar 18, 2022
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I sew you had some replies over at Vogon, but I'll put my thoughts down here as well:
That's probably an entirely custom power plug. This smells of POS machine, so there might be some industry standard but I wouldn't actually expect it to be ATX.

One of those pins is probably a soft-power signal.

Your card probably came out of this thing: http://www.dansdata.com/bookpc.htm
 

Stinkerton18

Moderator
Staff member
Aug 18, 2022
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Oh gods.... the BookPC! I recognized the board from my days assembling these things at a computer store turn of the millennium. You are indeed missing the ATX power on signal line and the +5vUSB line (purple) from your plug. Here's the power supply:
1773383324421.png


Looking at the review site, there's a pic of the plug:
1773384057319.png


Looks like the pinout, with clip up
12vGroundPower On
Ground12v5VSB

There's no 5V because the board itself generates it off the 12v. That molex plug on the board is what was used to power the CDROM, Floppy, and hard drive.
 
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