The is not a single motherboard model but rather a UL certification number used across multiple Dell and HP OEM boards manufactured by Foxconn. To find the exact schematic, you must identify your board's specific Dell Part Number (DPN) , such as D517D or GA0403 . Core Specifications by System Model
Finding a high-quality schematic for the Dell E93839 motherboard can be difficult because "E93839" is a UL (Underwriters Laboratories) certification number rather than a specific Dell part number. This number is found on many Dell boards from the OptiPlex series (like the 780, 790, and 990). Dell E93839 Motherboard Schematic High Quality