Dell E93839 Ga0402 Motherboard Specs Upd [TRUSTED]
Based on the OptiPlex 390 Desktop chassis configuration:
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. dell e93839 ga0402 motherboard specs upd
| Slot Type | Quantity | Notes | |-----------|----------|-------| | PCIe x16 (v2.0) | 1 | For graphics card (75W max from slot; extra power via PSU) | | PCIe x1 | 2 | For sound cards, network adapters | | PCI (32-bit/33MHz) | 1 | Legacy expansion | | Mini PCIe | 0 | Not present; uses mSATA? No – separate half-height WiFi card optional |
This motherboard is surprisingly capable even by today's standards. Because it supports NVMe M.2 SSDs via the PCIe slot, you can get modern system speeds out of a 6th Gen processor. Based on the OptiPlex 390 Desktop chassis configuration:
The E93839 (also printed as GA0402 on the PCB) is a micro-ATX (mATX) motherboard. Here is the official hardware breakdown:
| Feature | Specification | |---------|----------------| | Form Factor | 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) | | Slot Type | Quantity | Notes |
Important Note: 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).



