If you’re looking at this board today, you’re likely trying to wire it into a new case. Without the manual, the header is a notorious guessing game. Community experts often point to this standard configuration: Pins 1-3 : HDD LED (be careful with polarity!) Pins 5-7 : Reset Switch Pins 6-8 : Power Switch A Word of Caution

Unlike retail motherboards from ASUS or Gigabyte, this board is an OEM (Original Equipment Manufacturer) part, typically pulled from Acer Veriton X6系列 or M series business desktops. Acer does not always host legacy manuals prominently on their consumer support page.

While Acer never made a dedicated available to the public, this guide replicates 99% of the essential information you would find in one. From the missing reset switch to the tricky front panel pinout and the hidden Ctrl+F1 BIOS menu, you now have the reference documentation needed to repair, upgrade, or repurpose this resilient LGA 1155 motherboard.