Starts from the inside (closest to the CPU) towards the outside edge.
Use this breakdown to trace exactly where your new case's individual leads—such as the Power Switch ( Power SW ), Reset Switch ( Reset SW ), Hard Drive LED ( HDD LED ), and Power LED ( PLED )—need to go. Front panel pin installation, help! - Acer Community acer ipisb-vr rev 1.01 front panel
The header is typically a 14-pin or 15-pin block. Pin 1 is identified by a printed on the motherboard's corner. Pin Numbers 1 (+) & 3 (-) HDD LED Indicates hard drive activity; polarity matters. 2 (+) & 4 (-) Power LED Lights up when the PC is on; polarity matters. 5 & 7 Reset Switch Restarts the PC; polarity does not matter. 6 & 8 Power Switch Turns the PC on/off; polarity does not matter. 10 No Pin Used as a "key" for orientation. 12 (+) & 14 (-) LAN LED Starts from the inside (closest to the CPU)
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. - Acer Community The header is typically a
is empty (no physical pin present), serving as the structural alignment key. Row Position Pin Number Assigned Function Polarity Requirement Bottom / Inner Row HDD LED Positive (+) Polarized (Must match) Bottom / Inner Row HDD LED Negative (-) Polarized (Must match) Bottom / Inner Row Reset Switch Non-Polarized (Orientation free) Bottom / Inner Row Reset Switch Non-Polarized (Orientation free) Top / Outer Row Power LED Positive (+) Polarized (Must match) Top / Outer Row Power LED Negative (-) Polarized (Must match) Top / Outer Row Power Switch (PWR_SW) Non-Polarized (Orientation free) Top / Outer Row Power Switch (PWR_SW) Non-Polarized (Orientation free) No Pin (Key Blank)
The front panel header on this motherboard typically consists of a layout (often appearing as 2 rows of 7 pins). Identifying Pin 1 is essential: it is usually marked by a white square or a small "1" printed on the board. Connection Type Polarity/Notes Pins 1 (+) & 3 (-) HDD LED Indicates hard drive activity. Pins 2 (+) & 4 (-) Power LED Constant light when system is on. Pins 5 & 7 Reset Switch Restarts the PC (Polarity doesn't matter). Pins 6 & 8 Power Switch The main "On" button (Polarity doesn't matter). Pins 12 (+) & 14 (-) LAN LED Indicates network activity (often sideways). Pin 10 Missing/Empty Key pin used to align connectors. Installation and Troubleshooting Tips
Connect the HDD LED to Pin 1 & 3 . Note: Polarity matters. If it doesn’t work, turn the connector around.