| Feature | Specification | |---------|----------------| | | micro-ATX (9.6 x 9.6 inches) | | Chipset | Intel Q35 Express (for OptiPlex 755) or sometimes G31/G33 (for Inspiron models) | | CPU Socket | LGA 775 | | FSB (Front Side Bus) | 800 / 1066 / 1333 MHz | | Supported CPUs | Intel Core 2 Duo (E6000, E7000, E8000 series), Core 2 Quad (Q6000, Q8000, Q9000 series), Pentium Dual-Core, Celeron | | RAM Type | DDR2 SDRAM, 240-pin DIMM | | RAM Slots | 4 slots | | Max RAM | 8GB officially, 16GB unofficially (with dual-rank 4GB modules) | | RAM Speed | 667 MHz (PC2-5300) or 800 MHz (PC2-6400) | | Integrated Graphics | Intel GMA 3100 (Q35) or 3100 (G31) | | Expansion Slots | 1 PCIe x16 (v1.1), 1 PCIe x1, 2 PCI (32-bit) | | Storage Interfaces | 4 SATA II (3 Gb/s), 1 PATA (IDE) for optical drive | | Rear I/O Ports | PS/2 keyboard/mouse, VGA, 4 USB 2.0, RJ-45 Ethernet, audio line-out/line-in/mic, serial port, parallel port | | Internal Headers | 2 additional USB, front audio, chassis intrusion, CPU fan (4-pin), system fan (3-pin) | | Ethernet | 10/100/1000 Mbps (Broadcom or Intel 82566DM) | | Audio Codec | Realtek ALC888 (5.1 or 7.1 channel HD Audio) | | BIOS | Dell Proprietary (Phoenix/EFI hybrid) |
, 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 specs upd
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. | Feature | Specification | |---------|----------------| | |
The E93839 is a Dell proprietary board , not a standard retail motherboard. While it follows micro-ATX screw hole patterns, the front panel header pinout and power supply connectors may be non-standard (discussed below). 2. CPU Upgrade Options (What’s Officially Supported vs. Real-World) 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. Best CPU Upgrades for the E93839: | CPU Model | Cores / Threads | Clock Speed | FSB | L2 Cache | Notes | |-----------|----------------|-------------|-----|----------|-------| | Intel Core 2 Quad Q9650 | 4 / 4 | 3.00 GHz | 1333 MHz | 12 MB | Maximum stable upgrade | | Intel Xeon E5450 (with LGA 771 mod) | 4 / 4 | 3.00 GHz | 1333 MHz | 12 MB | Needs microcode mod & sticker adapter | | Intel Core 2 Duo E8600 | 2 / 2 | 3.33 GHz | 1333 MHz | 6 MB | Best for single-threaded tasks | | Intel Core 2 Quad Q6600 | 4 / 4 | 2.40 GHz | 1066 MHz | 8 MB | Common cheap option; runs hot | Last updated: February 2026
In this comprehensive guide, we break down every technical spec of the Dell E93839 GA0402 motherboard and provide actionable updates for maximizing its potential. The E93839 (also printed as GA0402 on the PCB) is a micro-ATX (mATX) motherboard. Here is the official hardware breakdown: