Dell E93839 Ga0402 Motherboard Specs Upd | Web Safe |

Unlike standard ATX motherboards, the Dell E93839 uses:

Update from repair logs (2025): Do not use a standard ATX power supply with this board unless it is from Dell (e.g., Dell L305P-01). Off-brand PSUs often lack the proper -5V rail or have different power-good timing, causing random shutdowns.

If you are working with a legacy Dell desktop—specifically the OptiPlex 755 or Inspiron 530/531 series—you have likely encountered the motherboard model number E93839 or its alias GA0402. This motherboard is a staple of Dell’s mid-to-late 2000s business-class lineup. While not a high-performance board by today’s standards, understanding its specifications and upgrade paths can breathe new life into an old system for basic computing, home server duty, or retro gaming.

In this comprehensive guide, we break down every technical spec of the Dell E93839 GA0402 motherboard and provide actionable updates for maximizing its potential.

Note: Always update BIOS only if needed; a failed update can brick the board. If your system is working fine, skipping updates is safe.

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. dell e93839 ga0402 motherboard specs upd

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:

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.

Memory Installation: For optimal performance, install RAM in matched pairs (same size, speed, and technology). Unlike standard ATX motherboards, the Dell E93839 uses:

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

Dell E93839 GA0402 is a legacy motherboard predominantly used in the Dell Optiplex 780

series. It is a Micro-ATX board built around the Intel Q45 Express chipset, designed for reliable office performance during the late 2000s and early 2010s. Core Technical Specifications Socket Type: (Socket T). Q45 Express with ICH10DO. Form Factor: (approximately 9.6 x 9.6 inches). Memory (RAM): DDR3 SDRAM (Non-ECC). 4 DIMM slots. Supports up to

total (4GB per slot), though some documentation lists 8GB as the tested maximum. Typically operates at

due to chipset limitations, even if higher-speed modules are installed. Processor Support: Intel Core 2 Quad (up to 1333 MHz FSB). Intel Core 2 Duo (up to 1333 MHz FSB). Intel Pentium Dual-Core and Celeron processors. Connectivity and Expansion Dell OptiPlex 780 Service Manual--Mini Tower Computer Update from repair logs (2025): Do not use

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.

Dell’s specifications state max 8GB (4x2GB DDR2). However, recent community updates have confirmed:

Important Update (2024): No newer BIOS hacks have unlocked full 16GB support reliably. Stick to 8GB.

This motherboard uses the LGA 1155 socket type.

The Dell E93839 GA0402 motherboard's specific details are crucial for any upgrades or repairs. Ensure you consult Dell's documentation or support pages for the most accurate and detailed specifications. When updating or replacing the motherboard, careful planning and execution are key to a successful upgrade.

The E93839 GA0402 has four SATA II ports (3 Gb/s). It does not support SATA III (6 Gb/s) natively, though SATA III SSDs are backward-compatible.