Search the surface of your motherboard for a white sticker with a barcode. The part number is typically a 5-digit alphanumeric code following the country code (e.g., "CN-0XXXXX"). Common versions of the E93839 include: Version Common System OptiPlex 7010 SFF LGA 1155, DDR3 (32GB max), USB 3.0 GA0403 OptiPlex 780 LGA 775, DDR3 (16GB max), BTX form factor KA0121 OptiPlex 790 MT LGA 1155, DDR3, PCIe x16, 240W PSU support AM0426 OptiPlex 9020/7020 LGA 1150, Intel Q87 chipset, DDR3 Step 2: Download High-Quality Schematics & Manuals
to run a Built-in Test (M-BIST) to narrow down the fault before hunting for a schematic. exact Dell Part Number for your specific machine to narrow down your search? Run a Motherboard Built-in Test (M-BIST) | Dell US dell e93839 motherboard schematic high quality better