Help - How to wire an Arcade button to Power on PC

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Alaska:
I just snagged an old Dell Optiplex 745 to drop into a MAME. I wanted to wire the on/off button to an Arcade button that I plan to mount next to the monitor on/off switch on the top of my cab. Trouble is ... I can't seem to figure out how to integrate the button. Here are some pics if it helps.

Thanks!

vwalbridge:
Doesn't look like that motherboard has Power Switch headers/pins. The board does have power sw solder pads near the main power molex but no pins.

Bust out the old solder iron and solder your two wires from the arcade button to the back side of that original case tactile switch. Done.

PL1:
http://forum.arcadecontrols.com/index.php/topic,128837.0.html

Scott

monkeybomb:
I hadn't seen the video from that thread, but I did exactly what that guy does on an optiplex 790. I hacked the cable and attached a button the right wires. It works and powers the computer, but there is an error on the motherboard saying that there is no power switch. Then I have to hit F1 to boot. I can't find anything in the bios to allow me to skip the error. I wish I had simply used the option to boot the computer when it is plugged in. That option takes 2 minutes to set-up and doesn't require any hacking.

Alaska:

--- Quote from: PL1 on November 06, 2015, 03:47:10 pm ---http://forum.arcadecontrols.com/index.php/topic,128837.0.html

Scott

--- End quote ---

Thanks Scott. That is a great video, but that version has a separate harness running to the on/off switch.

--- Quote from: monkeybomb on November 06, 2015, 04:02:01 pm ---I hadn't seen the video from that thread, but I did exactly what that guy does on an optiplex 790. I hacked the cable and attached a button the right wires. It works and powers the computer, but there is an error on the motherboard saying that there is no power switch. Then I have to hit F1 to boot. I can't find anything in the bios to allow me to skip the error. I wish I had simply used the option to boot the computer when it is plugged in. That option takes 2 minutes to set-up and doesn't require any hacking.

--- End quote ---

Thanks M-bomb. I had no idea that was an option for the computer to boot when connected to power. I'm going to opt for that setup and have everything wired into an accessible central power unit. Thanks for the knowledge.

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