E93839 Motherboard Schematic Updated: A Comprehensive Guide for Repairs and Upgrades (2026) The E93839 motherboard Go to product viewer dialog for this item.
ecosystem for certain newer variants, though legacy versions support older sockets. Processor Support : Newer revisions (like the HP E93839 FXN1 ) typically feature the Intel Core i5-6500 CPU and the LGA 1151 socket. Memory Architecture Equipped with 4 DDR4 SDRAM slots
The board uses a typical multi-phase voltage regulator module (VRM) to feed the CPU. e93839 motherboard schematic updated
Concise executive summary
The system requires a reference clock (usually 100MHz) to synchronize data transfer. Locate the crystal oscillator (25MHz) near the PCH. Verify it oscillates correctly. Without this baseline clock, the CPU cannot execute BIOS code. Common Failure Points on Foxconn OEM Boards Memory Architecture Equipped with 4 DDR4 SDRAM slots
: Differential pairs carrying high-frequency data straight to the graphics card slot.
Dual-channel DDR3 or DDR2 (depending on the specific revision) Expansion: 1 x PCIe x16 slot, 1 or 2 x PCIe x1 slots Storage: 4 x SATA II 3.0 Gb/s ports Graphics Input: Integrated VGA and/or DVI/HDMI 📊 Key Sections of the Updated Schematic Verify it oscillates correctly
The E93839 motherboard is a widely used, legacy OEM board manufactured by Foxconn, commonly found in older Hewlett-Packard (HP) and Compaq desktop computers. Because it was distributed as an Original Equipment Manufacturer component, official documentation and wiring diagrams were never openly published for consumers. Finding an updated schematic is essential for repairing power delivery failures, diagnosing boot loops, or modifying the board for modern use cases.
Embedded controllers and firmware interfaces
Dual-channel DDR3 DIMM slots (Supports up to 16GB non-ECC unbuffered memory). Expansion Options: 1 x PCIe x16 slot, 2 x PCIe x1 slots. Storage Interface: 4 x SATA 3.0 Gb/s connectors. Updated Block Diagram and Signal Flow