Dell E93839 Ga0402 Motherboard Specs Upd Info
Yes for basic builds (office, NAS, retro gaming). No for modern gaming or video editing.
Need exact specs?
Check the silkscreen on your physical board. Look for “REV: A00” through “A03” – that determines SATA III support. For BIOS updates, search Dell Support for “OptiPlex 790 motherboard E93839”.
Dell E93839 (GA0402) motherboard is the primary system board for the Dell OptiPlex 780
series. It is a legacy Intel-based board designed for business-class desktop performance, supporting the LGA 775 socket and DDR3 memory. Core Technical Specifications Dell OptiPlex 780 Service Manual--Mini Tower Computer
The Dell E93839 (Model GA0402) Go to product viewer dialog for this item.
is a motherboard designed for the Dell OptiPlex 780 series, primarily used in the Mini Tower (MT) and Desktop (DT) form factors. It is built on the Intel Q45 Express chipset paired with the ICH10DO southbridge. Core Specifications
Socket Type: LGA 775 (Socket T), compatible with Intel Core 2 Quad, Core 2 Duo, Pentium Dual-Core, and Celeron processors. Chipset: Intel Q45 Express. Form Factor: Micro-ATX (approximately 9.6 x 9.6 inches). Memory: Slots: 4 DIMM slots. Type: DDR3 SDRAM (Non-ECC).
Maximum Capacity: Supports up to 16GB (4 x 4GB modules), though some sources list an 8GB limit depending on the specific chassis/BIOS version. Speed: 1066MHz or 1333MHz. Expansion and Storage Expansion Slots: 1 x PCI Express x16 slot for dedicated graphics. 1 x PCI Express x1 slot. 2 x PCI slots (Standard height in MT models). Storage Interfaces: 4 x SATA 3.0 Gb/s connectors. 1 x eSATA port (on rear I/O). Connectivity and Audio Rear I/O Ports: 6 x USB 2.0 ports. 1 x VGA and 1 x DisplayPort. 1 x Serial (RS-232) and 1 x Parallel (IEEE 1284) port. 1 x RJ-45 Ethernet port (Intel 82567LM Gigabit). Audio connectors: Audio-In and Audio-Out. Audio: Integrated ADI 1984A High Definition Audio. Networking: Integrated Intel 82567 Gigabit LAN. Shopping & Replacement dell e93839 ga0402 motherboard specs upd
If you are looking to replace this board, it is widely available as a used or refurbished part under various Dell Part Numbers (DP/Ns) such as C27VV, OC27VV, or D517D.
Average Price: Typically ranges from $12 to $40 for used units on platforms like eBay.
Compatibility Note: Ensure your power supply matches the proprietary Dell connectors, as some OptiPlex 780 variants use different power configurations.
Are you planning to upgrade the CPU or expand the RAM on this specific motherboard? Dell OptiPlex 780 Service Manual--Mini Tower Computer
Dell’s official documentation for the GA0402 originally listed support for up to Intel Core 2 Duo E8600 (3.33 GHz, 1333 MHz FSB) and Core 2 Quad Q9650 (3.0 GHz). However, after BIOS update A11 or A12 (from Dell in 2009–2010), the board can accept later 45nm LGA 775 chips.
| Feature | Details | |-----------------------|---------| | Chipset | Intel Q87 Express (for OptiPlex 7020) or H81 (for 3020 variant – verify sticker) | | CPU Socket | LGA 1150 | | Supported CPUs | 4th Gen Intel Core (Haswell): i3, i5, i7, Pentium, Celeron | | RAM | 4 x DDR3 DIMM slots, up to 32GB, 1600MHz (non-ECC) | | Expansion Slots | 1 x PCIe x16, 1 x PCIe x4, 1 x PCIe x1, 1 x PCI (legacy) | | Storage | 4 x SATA 3.0 (6 Gbps) | | Rear I/O | PS/2 (keyboard/mouse), 4 x USB 3.0, 2 x USB 2.0, RJ-45, VGA, DisplayPort, audio jacks (line out, mic) | | Internal headers | Front USB 3.0, USB 2.0, audio, COM port (optional), chassis fan, CPU fan | | Power connector | 24-pin ATX + 4-pin CPU | | Network | Intel I217-LM Gigabit Ethernet | | Audio | Realtek ALC3220 (High Definition Audio) |
The Dell E93839 GA0402 is a rugged, well-documented LGA 775 motherboard whose specs and update potential have been squeezed dry by the enthusiast community over 15+ years. With a Core 2 Quad, 8GB DDR2, an inexpensive SATA SSD, and a lightweight Linux distro, this board can still perform simple desktop tasks, server roles, or retro gaming duty. RAID Support: Not supported on the H61 chipset/OptiPlex
No more official updates are coming from Dell, but the community-driven BIOS mods and driver hacks listed above represent the final frontier for this reliable, if aging, platform.
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.
Dell E93839 GA0402 motherboard is a standard replacement component primarily designed for the Dell OptiPlex 780
(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.
: Uses standard Dell proprietary power connectors; ensure your power supply matches the specific 780/760 pinout. Usage Context This board is intended for casual computing
or business environments requiring a stable, legacy platform. While some listings mistakenly mention LGA1155 or newer sockets, the variant is strictly a Socket 775 board for Core 2 Duo and Quad CPUs. replacement board for an existing system, or are you planning a CPU upgrade for this specific motherboard? Dell OptiPlex 780 Service Manual--Mini Tower Computer
The Dell E93839 (GA0402) Go to product viewer dialog for this item. Yes for basic builds (office, NAS, retro gaming)
is a motherboard designed for the Dell OptiPlex 780 series. It is built on the Intel Q45 Express chipset and features a Socket LGA 775 (also known as Socket T).
Below are the updated technical specifications for this motherboard: Core System Specifications Chipset: Intel Q45 Express with ICH10DO. Processor Socket: LGA 775 (supports FSB up to 1333 MHz). Form Factor: MicroATX (Proprietary Dell design). Processor Support
The board supports several Intel processor families from the Core 2 era: Core 2 Quad: Up to 1333 MHz FSB. Core 2 Duo: Up to 1333 MHz FSB. Pentium Dual-Core: Up to 1066 MHz FSB. Celeron: Up to 800 MHz FSB. Memory (RAM) Type: DDR3 SDRAM (Non-ECC only). Slots: 4 DIMM slots.
Speed: 1066 MHz or 1333 MHz (Note: often operates at 1066 MHz due to chipset limits).
Capacity: Supports 1GB, 2GB, or 4GB modules for a maximum of 16GB. Expansion & Storage PCI Express: 1x PCIe x16 slot (blue) and 1x PCIe x1 slot. Legacy PCI: 2x Standard PCI slots (32-bit). SATA: 4x SATA 3.0 Gb/s (SATA II) connectors. eSATA: 1x External SATA port on the rear I/O. Integrated Graphics & Audio
Graphics: Intel Graphics Media Accelerator X4500 (up to 256MB shared memory). Audio: ADI 1984A High Definition Audio. Network: Intel 82567 Gigabit LAN (10/100/1000 Mbps). Rear I/O Ports Dell OptiPlex 780 Service Manual--Mini Tower Computer
Here’s a concise write-up on the Dell E93839 GA0402 motherboard specifications and update notes, based on available technical references (this board is commonly found in Dell OptiPlex small form factor or desktop systems, often the OptiPlex 3020 or 7020 series).
Before making any changes, document your current system configuration, including the OS, processor, RAM, and any expansion cards.
Dell enterprise boards ("OptiPlex" line) are built like tanks.