The CR2032 lithium coin battery on the motherboard is dead. Replace it to permanently save your BIOS settings.
“I just need the pinout for the front panel audio.” “Does anyone know which jumper clears the BIOS?” “Help – my RC415T-AM won't post with a GT 710.” rc415t-am motherboard manual
jumper. Move the jumper cap from the "Normal" position (pins 1-2) to the "Clear" position (pins 2-3) for 5–10 seconds while the PC is off and unplugged, then return it to 1-2 BIOS Access: during startup to enter the BIOS Setup Utility ECS ELITEGROUP Drivers and Downloads The CR2032 lithium coin battery on the motherboard is dead
Requires a standard 24-pin ATX power connector and a 4-pin 12V CPU power connector. Windows Compatibility: Move the jumper cap from the "Normal" position
Technical details and basic guides can be found on community archives like The Retro Web - ECS RC415T-AM .
The is an OEM motherboard manufactured by ECS (Elitegroup) for major desktop brands like Acer and Gateway. Since it was built for pre-assembled systems, a standalone "retail" manual is rare; instead, technical details are often found in the service guides of the computers it powered, such as the Acer Aspire T180 or E380. Core Specifications Chipset: ATI Radeon Xpress 200 (RC410) with ULi M1573 Southbridge. CPU Socket: LGA775 (Socket T).
Locate the CLR_CMOS jumper near the battery or SATA ports. Move the cap from pins 1-2 (default) to pins 2-3 for 5-10 seconds, then return it.