: Move jumper to pins 1-2 for ~10 seconds, then return to 2-3. Memory & CPU Support
Furthermore, the SIO is integral to the power switching logic. The schematic illustrates how the front panel power button signal is routed through the SIO to the ATX power supply connector. For repair professionals, this section is critical for diagnosing "dead" boards where the power supply works, but the motherboard refuses to activate. h-ig41-uatx rev 1.1 schematic
) is a micro-ATX motherboard commonly found in HP and Compaq desktop PCs like the Compaq 500B HP Pro 2000 : Move jumper to pins 1-2 for ~10