Connecting case cables to the front panel header (often labeled ) follows this standard 14-pin layout: Pin Number Pin Number HDD LED (+) Power LED (+) HDD LED (-) Power LED (-) Reset Switch (-) Power Switch (+) Reset Switch (+) Power Switch (-) No Connection Key (Empty) No Connection No Connection Active LED
Here are some common issues you may encounter with the Acer AAHD3-VC motherboard and some troubleshooting tips: acer aahd3-vc motherboard manual
Remove CMOS coin cell for 10 minutes or short CMOS reset jumper for 10 seconds. Connecting case cables to the front panel header