The RC415T-AM uses a accessible by pressing Del or F2 during boot (Acer systems may use F2 or F12 ).
If you installed a dedicated graphics card, plug your monitor cable directly into the card, not the motherboard's VGA port. rc415t-am motherboard manual
Ensure your Intel processor does not exceed an 800 MHz FSB. This board does not support later 1066 MHz or 1333 MHz Core 2 Duo processors. 2. BIOS Settings Are Not Saving The RC415T-AM uses a accessible by pressing Del
: Ethernet controller not visible in Device Manager; link/activity LEDs do not light when cable is connected. rc415t-am motherboard manual