: Front panel headers (power button, reset, LED), 24-pin ATX power, and 4-pin CPU power. Troubleshooting & Maintenance
For a custom case, look at page 20-22 of the manual to locate the F_PANEL headers for power and HDD LEDs. acer+h81h3am+v10+manual+free
If you are looking for the manual to reset the BIOS: : Front panel headers (power button, reset, LED),
If you are reading this, you likely own a pre-built desktop PC from Acer—perhaps an Aspire TC-603, Aspire XC-603, or a Veriton M series. Inside that unassuming tower lies a specific workhorse motherboard: the . : Front panel headers (power button