This section maps the multi-phase buck converters responsible for generating VCCIN , VCORE , and VDDQ (RAM voltage). It details the Pulse Width Modulation (PWM) controller IC, the driver ICs, and the high-side/low-side MOSFETs. Voltage Rails Reference Table
The is a critical resource for technicians repairing or upgrading OEM desktops like the Dell OptiPlex 790 or the HP EliteDesk 800 G3 . While "E93839" is a regulatory mark rather than a specific model number, it is most commonly associated with LGA1155, LGA1150, and LGA1151 socket boards found in enterprise-grade Small Form Factor (SFF) and Mini Tower (MT) systems. Understanding the E93839 Marking E93839 Motherboard Schematic