If you are currently diagnosing a specific failure on your motherboard, please share the exact symptoms you are experiencing (e.g., no power, fans spin but no display, specific error codes, or physical damage). I can help you pinpoint which voltages, chips, or signals to check next on your board. Share public link
The motherboard, commonly known by its HP/Compaq codename "Eton" , is a vintage Micro-ATX board manufactured by Foxconn . Frequently found in office-oriented desktops like the HP Compaq 500B series , it remains a popular choice for budget-conscious retro builders and repair technicians.
Board revisions often change minor components—resistor values, capacitor placements, or VRM configurations. If you are troubleshooting a Rev 11 board using a Rev 1.0 schematic, you might find discrepancies in the voltage regulator section. Always try to match the revision to avoid chasing ghosts.
High-side and low-side MOSFET pairs switch rapidly to regulate current. hig41uatx rev 11 schematic
standby power circuits, broken pathways across the power switch lines, or a short circuit down the CPU VRM rail.
The search for a schematic is often driven by a specific problem. Here are some common issues with the H-IG41-uATX and repair strategies for them, informed by community repair forums.
Utilizes the LGA 775 socket. It supports 45nm and 65nm Intel processors including Core 2 Quad , Core 2 Duo , Pentium Dual Core , and Celeron with a Front Side Bus (FSB) of up to 1333 MHz. If you are currently diagnosing a specific failure
With more context, I can offer more targeted assistance.
The G41 chipset can be picky with RAM. Use compressed air and cleaning alcohol on the DDR3 slots.
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A schematic is a detailed map of a circuit board. Official schematics for the H-IG41-uATX Rev 1.1 are not publicly available, likely because Foxconn never intended to release them outside their own service centers【10】. However, this doesn't mean you are out of options:
You can check the voltage entering the ATX 24-pin connector and trace the standby power lines.
While originally designed for Windows XP and 7, it is capable of running Windows 10 64-bit with appropriate driver support. H-IG41-uATX Rev: 1.1 Motherboard Frequently found in office-oriented desktops like the HP
: Legacy support for BIOS and drivers (Realtek audio/LAN) can be referenced through archival sites like The Retro Web for the PDF manual or specific voltage measurement points for troubleshooting? Foxconn H-IG41-uATX (REV:1.0) - The Retro Web 3 Mar 2026 —
Features two 240-pin DDR3 DIMM slots . While the chipset technically supports up to 8GB, this specific HP board is officially validated for 4GB maximum (2GB per slot) of unbuffered PC3-10600 (1333 MHz) non-ECC memory.