Dell E93839 GA0402 refers to a specific motherboard typically used in the Dell OptiPlex 780 series. It is a legacy business-class board based on the Intel Q45 Express
: High-frequency options (such as the E8400 or E8600) running at up to 3.33GHz.
Have a different revision of the GA0402 (e.g., with Intel G33 chipset)? Some specs (like max FSB or integrated graphics) may vary — check the chipset heatsink for markings. Last updated: February 2026.
With 10 USB 2.0 ports (six in the rear for peripherals and four internal headers), it was a hub for any legacy setup.
When maintaining, repairing, or upgrading a legacy business desktop, identifying the exact hardware specifications of the system board is essential. A prominent example of such a corporate workhorse component is the , which serves as the primary system board for specific form factors of the highly popular Dell OptiPlex 780 and 760 commercial desktop series.
(specifically the Mini-Tower and Desktop form factors). It utilizes the Intel Q45 Express chipset and supports older Intel Core 2 era processors. Core Technical Specifications : Intel Q45 Express w/ICH10DO. CPU Socket (Socket T). Memory Support : 4 x DDR3 DIMM slots. Maximum Capacity : Typically (non-ECC). : DDR3 1066MHz / 1067MHz. Expansion Slots 1 x PCI Express x16 slot. 2 x PCI Express x1 slots (Mini-Tower version). Standard PCI slots (depending on chassis variant). Storage Interfaces : 4 x SATA 3.0 Gb/s connectors. Input/Output Ports : 10 x USB 2.0 ports total (6 rear, 4 internal headers). Integrated Intel Graphics Media Accelerator X4500. DisplayPort , and occasionally eSATA. Networking : Intel 82567LM Gigabit Ethernet. : ADI 198x High Definition Audio. : Serial (RS-232) and Parallel (IEEE 1284) ports. Compatibility Notes Compatible Systems : Most commonly found in the Dell OptiPlex 780 , but some variants are cross-compatible with the OptiPlex 760 Form Factor : Desktop/Mini-Tower (MT) ATX style.
Unlike many LGA 775 boards that rely on older DDR2 memory, the E93839 GA0402
While originally shipped with Windows XP/7, these boards can typically run modern 64-bit operating systems to fully utilize more than 4GB of RAM. Dell OptiPlex DDR3 Memory Compatibility Guide
The Dell E93839 GA0402 Go to product viewer dialog for this item.
Q9650, Q9550, Q8400 (ideal for modern multi-threaded budget workloads) Intel Core 2 Duo: E8400, E8500, E7500 Intel Pentium Dual-Core: E5400, E5300 Intel Celeron: For basic, low-power applications Memory & Architecture Upgrades