| Board Label Found | Associated Dell Computer(s) | Chipset | CPU Socket | Form Factor | | :--- | :--- | :--- | :--- | :--- | | E93839 HA0326 | OptiPlex 360 | Not Specified (DDR2 RAM) | LGA 775 | Desktop | | E93839 GA0403 | OptiPlex 760 | Not Specified (DDR3 RAM) | LGA 775 | Desktop | | E93839 LA0531 | OptiPlex 7010 / Precision T1650 | Q77 / C216? | LGA 1155 | MT/SFF/DT | | E93839 LA0601 | OptiPlex 9010 | Q77 | LGA 1155 | SFF | | E93839 AM0426 | OptiPlex 7020/9020 / Precision T1700 | Q87 / C226 | LGA 1150 | MT/DT | | E93839 Amo327 0YC03K | OptiPlex XE2 | Q87 | LGA 1150 | SFF |
One PCIe x16 (graphics), and one or two PCIe x1. SATA Connectors: Four SATA 3.0 Gb/s connectors. 4. Troubleshooting Using the Schematic
Use that specific part number to search sites like the BadCaps Forum or VinaFix , which host high-quality PDF schematics for technicians. Official Manuals: Dell E93839 Motherboard Schematic High Quality
Tracing signals for POST failure (Power-On Self-Test), such as VCORE, VTT, or RAM voltage.
Usually an SMSC, Nuvoton, or ITE branded chip. It acts as the gatekeeper for system power management, thermal monitoring, and keyboard/mouse detection. 3. Power Sequence and Rail Diagnostics | Board Label Found | Associated Dell Computer(s)
: Open the .BRD , .BDV , or .CAD file matching your Dell motherboard model.
A high-quality schematic for the Dell E93839 motherboard offers several benefits, including: Usually an SMSC, Nuvoton, or ITE branded chip
Diagnostic Tip: If you have all other voltages but VCC_CORE reads 0V, check the VRM enable signal ( VR_EN ) coming from the Super I/O. 4. Common Point-of-Failure Diagnostics
: Activated once the power button pulls the PWR_SW signal low, prompting the Super I/O to send the PSON signal to the power supply.