Found in the Dell OptiPlex 780/760 . These boards use DDR3 or DDR2 memory and typically feature a 24-pin ATX power connector alongside a 4-pin 12V CPU power lead.
Always verify the full PCB number. You may see variants like E93839 REV 1.1 , E93839 REV 2.0 , or E93839-001 . Even minor revisions can have significant component changes.
etched onto the PCB. While it looks like a model number, it is actually a UL (Underwriters Laboratories) certification code assigned to the manufacturer, often leading users on a wild goose chase for schematics.
This usually indicates a power rail failure.
Found in the Dell OptiPlex 780/760 . These boards use DDR3 or DDR2 memory and typically feature a 24-pin ATX power connector alongside a 4-pin 12V CPU power lead.
Always verify the full PCB number. You may see variants like E93839 REV 1.1 , E93839 REV 2.0 , or E93839-001 . Even minor revisions can have significant component changes. E93839 Motherboard Schematic
etched onto the PCB. While it looks like a model number, it is actually a UL (Underwriters Laboratories) certification code assigned to the manufacturer, often leading users on a wild goose chase for schematics. Found in the Dell OptiPlex 780/760
This usually indicates a power rail failure. E93839 REV 2.0
