This is a specialized request, as Foxconn H-IG41-uATX (rev 1.1) is an older OEM board (often found in eMachines, Acer, or Packard Bell desktops). Public schematics for proprietary OEM motherboards are extremely rare because Foxconn does not release them to the public; they are only given to repair centers.
However, I can provide a technical write-up based on the board's known architecture, common failure points, and how a schematic would be structured if you found one for repair purposes.
A schematic alone isn't enough. You also need the Boardview file (.cad, .brd, or .fz). Programs like OpenBoardView or LinkerCad allow you to click a net name and see exactly where the trace runs on the physical PCB.
For Rev 1.1, boardview files reveal:
The "h-ig41-uatx rev 1.1 schematic" is more than a PDF of lines and labels. It is a fossilized ecosystem: the last gasp of the FSB, the transition to DDR3, the compromise of integrated graphics, and the triumph of the micro-ATX form factor. It represents a moment when a single engineer in Taiwan decided where to route the 12V CPU sense line, what value pull-up resistor to put on the SMBus, and whether to include a jumper for CMOS clear.
To hold this schematic—whether as a leaked PDF or a faded A0 plot—is to see the ghost in the machine. It reveals that every click, every keystroke, every pixel rendered on a G41-powered PC is the result of a million carefully negotiated electrical contracts, signed not in ink but in copper and tin-lead solder. In an age of software abstraction, the schematic remains the hardware’s final, unapologetic truth.
The HP H-IG41-uATX (Rev 1.1), often referred to by its manufacturer name Foxconn Eton, is a staple micro-ATX motherboard found in popular legacy systems like the HP Compaq 500B and Compaq Presario CQ3000 . Whether you are performing a repair, looking for a schematic to trace a power rail, or planning an upgrade, understanding the layout and specifications of this board is essential. Core Specifications & Architecture
Built on the Intel G41 Express chipset, this motherboard was designed to bridge the gap between late-era LGA 775 processors and the then-emerging DDR3 memory standard.
Socket Type: LGA 775 (Supports Intel Core 2 Quad, Core 2 Duo, Pentium, and Celeron).
Memory: 2x 240-pin DDR3 DIMM slots. Supports up to 4GB or 8GB depending on the specific BIOS version and module density.
Chipset: Intel 82G41 (Northbridge) and Intel 82801GB ICH7 (Southbridge). Graphics: Integrated Intel GMA X4500 . Expansion: 1x PCIe x16, 2x PCIe x1, and 1x legacy PCI slot. Understanding the Schematic & Board Layout h-ig41-uatx rev 1.1 schematic
While a full PDF schematic is typically proprietary, repair enthusiasts often use the User Manual and technical diagrams to identify key measuring points for troubleshooting. 1. Power Distribution
The H-IG41-uATX Rev 1.1 (also known as the "Eton" motherboard) is an OEM board manufactured by Foxconn for HP and Compaq desktop systems, such as the HP Compaq 500B and CQ3212L.
While a full circuit-level schematic (showing every resistor and trace) is generally a proprietary document not released to the public, the technical specifications and layout diagrams provided by HP Support and The Retro Web offer the essential data needed for troubleshooting and upgrades. Key Technical Specifications
The board is built on the Intel G41 Express chipset, designed for the LGA 775 socket era. Specification Socket LGA 775 (Supports Core 2 Quad, Duo, Pentium, Celeron) Chipset Intel G41 (Northbridge) / ICH7 (Southbridge) Form Factor microATX (uATX) Memory
2x DDR3 DIMM slots; supports up to 4GB officially (some reports suggest 8GB with specific low-density modules) Expansion 1x PCIe x16, 2x PCIe x1, 1x PCI, 1x Mini PCI Storage 4x SATA II (3.0 Gb/s) ports Audio/LAN Realtek ALC662 Audio / Realtek RTL8103E Ethernet Motherboard Layout and Connectivity
For those looking for a "schematic" to identify port locations, the board follows a standard microATX configuration:
Rear I/O: Features a VGA port, four USB 2.0 ports, an RJ-45 LAN port, and three audio jacks (Line-in, Line-out, Mic).
Internal Headers: Includes two USB 2.0 headers (supporting 4 ports), a front panel audio header, and a standard 9-pin front panel header for power/reset/LEDs.
Power: Requires a 24-pin ATX main power connector and a 4-pin ATX 12V CPU power connector. Common Troubleshooting & Upgrades
HP H-IG41-uATX (Rev 1.1) , often identified by the spare part number 582679-001 This is a specialized request, as Foxconn H-IG41-uATX
, is a fascinating "time capsule" motherboard for hardware enthusiasts and repair technicians. Originally manufactured by
(under the "Eton" project name) for HP Pavilion and Compaq desktops, this board represents the twilight of the LGA 775 era.
Below is an exploration of the board's design through the lens of its schematic and technical capabilities. 1. The Core Architecture: G41 Express At the heart of the schematic lies the Intel G41 Express Northbridge paired with the ICH7 Southbridge LGA 775 Socket:
This revision was designed to stabilize power delivery for late-cycle Core 2 Quad and Core 2 Duo processors. FSB Support:
The board typically handles Front Side Bus speeds of 800/1066/1333 MHz, making it a versatile choice for budget "sleeper" builds using modified Xeon processors. 2. The RAM Paradox
One of the most debated aspects of the Rev 1.1 schematic is its memory ceiling. Official Limit: HP documentation often lists a maximum of 4GB (2 x 2GB) of DDR3 RAM. The Schematic Reality:
Because the G41 chipset itself supports up to 8GB, many users have successfully bypassed the "official" limit by using specific low-density 4GB sticks (2Rx8), though this often requires a BIOS that doesn't artificially cap the memory map. 3. Troubleshooting via the Schematic
For repair enthusiasts, the Rev 1.1 schematic is essential for diagnosing common "no-post" issues. A frequent area of study is the Voltage Regulator Module (VRM) Power Rails: Technicians often look for on the BIOS chip's first pin. Voltage Logic:
While some assume a standard 3.3V across the board, the schematic reveals specific step-down points (like 1.8V) required for the processor and chipset logic to communicate correctly. 4. Legacy Connectivity
The board is a masterclass in transitional tech. Its schematic includes: Integrated Graphics: How to Read a Boardview for Rev 1
Intel GMA X4500, which was revolutionary at the time for providing "playable" entry-level 3D performance without a dedicated card. Expansion: PCIe x16 slot PCIe x1 slots
, alongside legacy headers for serial ports that are rarely seen on modern uATX boards. Key Technical Specs (Rev 1.1) Specification Intel G41 / ICH7 Form Factor Micro-ATX (uATX) DDR3 800/1066 MHz Common Part # 582679-001 Whether you are restoring an old HP Pavilion
or studying board design, the H-IG41-uATX Rev 1.1 remains a prime example of high-volume, reliable OEM engineering from the late 2000s. for the front panel or the specific capacitor values used in the power phase? AI responses may include mistakes. Learn more
H-IG41: This refers to the chipset used on the motherboard. "H" typically denotes a specific series or type of chipset from Intel, known for their stability and feature set. The "IG41" specifically relates to the Intel G41 Express chipset, which is a part of Intel's chipset family designed for desktops. The G41 chipset supports Intel Core 2 Duo, Core 2 Quad, and Pentium dual-core processors.
UATX: This seems to refer to the form factor of the motherboard. However, the standard abbreviation for a smaller version of ATX is "mATX" or micro-ATX. Assuming "UATX" might be a typo or specific form factor not widely recognized, it's likely referring to a micro-ATX form factor, which is a common size for motherboards that balances compactness with expandability.
Rev 1.1: This indicates the revision of the motherboard design. Revision numbers are used to track changes in hardware design, layout, or component usage.
The ICS (Integrated Circuit Systems) clock generator (e.g., ICS9LPRS138C) provides 14.318MHz reference and 100MHz PCIe clocks. The schematic pinout is vital if the board fails to POST.
Since Foxconn does not publish it legally:
⚠️ Most online sources claiming to sell this exact schematic are scams. The closest public schematic is for Foxconn G41MXE/G41M-S – about 85% identical.