The Dell E93839 GA0402 motherboard is a standard-issue system board primarily found in the Dell OptiPlex 780 series. It serves as a reliable legacy platform for users maintaining older office workstations or building budget-friendly home servers. Based on the Intel Q45 Express chipset, this board is designed for the LGA 775 socket, supporting a range of 45nm and 65nm Intel processors. Core Technical Specifications
The following technical details outline the hardware capabilities of the GA0402 revision: Chipset: Intel Q45 Express with ICH10DO. Processor Socket: LGA 775. Supported CPUs: Intel Core 2 Quad (up to 1333 MHz FSB). Intel Core 2 Duo (up to 1333 MHz FSB). Intel Pentium Dual-Core (up to 1066 MHz FSB). Intel Celeron (up to 800 MHz FSB). Memory Support: Type: DDR3 SDRAM (non-ECC only). Slots: 4 DIMM connectors. Maximum Capacity: 8 GB total. Speed: 1066 MHz.
Integrated Graphics: Intel Graphics Media Accelerator X4500 (up to 256 MB shared memory). Audio: Integrated Intel High Definition Audio.
Networking: Integrated Intel Gigabit Ethernet (10/100/1000 Mb/s). Expansion and Connectivity
Designed for the OptiPlex 780 desktop and mini-tower chassis, the board provides several ports for internal and external upgrades: dell e93839 ga0402 motherboard specs upd
PCI Express Slots: One PCIe x16 slot for discrete graphics and one PCIe x1 slot for auxiliary cards. Legacy PCI: Two 32-bit PCI 2.3 connectors. Storage: Four SATA 2.0 (3.0 Gb/s) connectors. External I/O Ports: 6 x USB 2.0 (Rear). 1 x VGA port. 1 x DisplayPort. 1 x eSATA port.
Serial and Parallel ports (depending on specific chassis revision). Installation and Maintenance Tips
When working with or upgrading this motherboard, keep the following manufacturer recommendations in mind:
Power Supply: This board uses standard 24-pin and 4-pin power connectors. The Dell E93839 GA0402 motherboard is a standard-issue
Memory Installation: For optimal performance, install RAM in matched pairs (same size, speed, and technology).
Diagnostic Lights: The power button light provides critical feedback. Blinking amber typically indicates a problem with the system board, while solid amber suggests the board is unable to initialize.
Service Manuals: Detailed teardown and replacement instructions can be found in the Dell OptiPlex 780 Service Manual. Compatible Parts for Upgrades
If you are looking to purchase a replacement or upgrade components, consider retailers like Tech Atlantix for the motherboard itself or Newtown Spares for specific OptiPlex 780 parts. Dell OptiPlex 780 Service Manual--Mini Tower Computer Find the Dell Service Tag / Express Service
Dell E93839 GA0402 Motherboard Specifications and Update Information
The Dell E93839 GA0402 motherboard is a component of various Dell systems, and its specifications can be crucial for users looking to upgrade or troubleshoot their computers. Below, you'll find an overview of the motherboard's specifications and guidance on how to update its components.
| Problem | Solution | |---------|----------| | No POST after CPU upgrade | Clear CMOS (jumper or battery removal). Update to BIOS A12 first. | | Front panel wiring confusion | Use Dell OptiPlex 790 pinout diagram (Power SW: pins 4 & 6 on header). | | Fan runs at 100% | Wrong fan header – use CPU_FAN for CPU cooler; SYS_FAN for case fan. | | GPU not recognized | Disable Secure Boot; force Legacy ROM in BIOS. |
msinfo32 → BIOS Version/DateThis motherboard uses the LGA 1155 socket type.