The Real-Time Clock circuit, sustained by the 3V CR2302 coin-cell battery, keeps the internal oscillator running. Phase 2: Power-On Initiation (S5 to S0 State) When the front-panel power switch is momentary shorted: The PWRBTN# signal drops to 0V at the Super I/O pin.
The number is not a model number for a specific laptop; it is a Foxconn Part Number for a specific motherboard revision . This motherboard was primarily used in Dell Inspiron laptops, most commonly the Dell Inspiron 15 (3542) and Dell Inspiron 17 (3742) series. E93839 Motherboard Schematic
The E93839 motherboard schematic comprises numerous components, which can be broadly categorized into the following sections: The Real-Time Clock circuit, sustained by the 3V
Sourced directly from the ATX 24-pin connector (Purple wire for +5VSB). The Real-Time Clock circuit