Upon startup, press the designated key:
is the retail equivalent of this board. Its manual is almost identical in layout and jumper settings and can be found on the ECS Download Center 💡 Quick Setup Tips Clear CMOS: Look for a 3-pin jumper labeled rc415t am manual
Since this is an OEM board, you should look for documentation under the Acer Desktop Model name rather than the motherboard model. Official Support: Upon startup, press the designated key: is the
. Move the jumper from pins 1-2 to pins 2-3 for 10 seconds while the power is unplugged to reset BIOS settings. Front Panel Header: rc415t am manual
The CMOS battery (a silver CR2032 coin cell) on the RC415T AM is likely dead by now (2023 and beyond).