Hig41uatx Rev 11 Schematic Verified -
The H-IG41-uATX (Rev 1.1), often referred to as the HP Eton or Foxconn 2A8C, is a highly regarded budget motherboard primarily found in older HP and Compaq business desktops, like the HP 500B. Community reviews and technical verified mods highlight its surprising versatility for secondary PC builds. Core Performance & Specs
Chipset & Socket: It uses the Intel G41 Express chipset with an LGA 775 socket.
Memory: Supports two slots of DDR3 RAM, a major upgrade over the DDR2 found on older G31/G41 boards.
Expansion: Features one PCI Express x16 slot for graphics cards, two PCIe x1 slots, and one legacy PCI slot.
Storage: Equipped with four SATA ports, though it typically uses the older ICH7 southbridge. Verified Modifications & Compatibility
Reviewers and enthusiasts on BIOS-Mods have verified the board's reliability for specific upgrades:
LGA 771 to 775 Mod: This board is "verified working" with modified BIOS to support LGA 771 Xeon processors (like the E5450), provided you use 45nm microcodes. hig41uatx rev 11 schematic verified
Processor Support: It natively supports Core 2 Quad and Core 2 Duo (Wolfdale/Conroe).
OS Compatibility: While old, it is confirmed to run Windows 10 Professional 64-bit without major driver issues. Summary of Pros and Cons Pros Cons Extremely cheap on the used market Limited to 2 RAM slots Uses DDR3 RAM (more common/cheaper than DDR2) Lacks USB 3.0 or SATA 3.0 Verified support for Xeon mods OEM BIOS can be restrictive without mods Standard Micro-ATX form factor fits most cases Older 775 platform is power-hungry Foxconn H-IG41-uATX (REV:1.0) - The Retro Web
The HIG41-UATX (Eton) Rev 1.1 is an Intel G41 Express-based Micro-ATX motherboard commonly found in HP Pavilion Slimline systems supporting LGA 775 processors. Verified BIOS dumps and schematic information are typically sourced from technician resource collections, such as the one found on DisplayMonk's Repair Collection Laptop schematics Bios and boardviews - Facebook
The text refers to the H-IG41-uATX (Eton) Rev 1.1 motherboard, commonly used in HP and Compaq desktop computers like the Compaq 500B
. The phrase "verified" typically indicates that a particular schematic, boardview, or BIOS dump file has been tested and confirmed to work by the technical community. The Retro Web Motherboard Overview Manufacturer: Foxconn (marketed as HP/Compaq "Eton"). Intel G41 (Northbridge) and ICH7 (Southbridge).
LGA 775 (Socket T), supporting Intel Core 2 Quad, Core 2 Duo, Pentium, and Celeron processors. Two slots supporting up to (HP spec) or potentially (chipset spec) of DDR3 1066/1333 MHz RAM. Form Factor: MicroATX (uATX). Technical Resources The H-IG41-uATX (Rev 1
Finding a "verified" schematic usually involves specialized technician forums or archives. While full PDF manuals are available on platforms like
, actual circuit diagrams (schematics) and boardview files are often hosted on: BIOS & Firmware:
Verified "100% working" BIOS bin files for this revision can be found in technician groups on platforms like Schematic Archives: Repositories like The Retro Web
provide hardware documentation and BIOS files for legacy boards. The Retro Web download link for the verified schematic, or are you trying to troubleshoot a specific power or display issue on this board? H-IG41-uATX Rev: 1.1 Motherboard
The phrase "hig41uatx rev 11 schematic verified" refers to the verification of the technical schematic for the Foxconn H-IG41-uATX (Revision 1.1) motherboard, an OEM board commonly found in HP and Compaq desktop PCs (such as the HP 500B Microtower). Technical Context
Motherboard Model: Foxconn H-IG41-uATX (also known as the Eton motherboard or HP part 582679-001). All redlines and modifications marked in previous revisions
Verification Status: The "verified" label typically appears in repair communities or technician forums (e.g., Scribd or The Retro Web) to confirm that a specific schematic file accurately matches the physical traces and components of the Rev 1.1 board for troubleshooting purposes. Key Specifications (Rev 1.1) Chipset: Intel G41 Express.
Socket: LGA 775 (Supports Intel Core 2 Quad, Core 2 Duo, Pentium, and Celeron processors).
Memory: Two DDR3 DIMM slots, typically supporting up to 4GB or 8GB depending on the CPU and module density. Form Factor: Micro-ATX (24.5 cm x 24.5 cm). Expansion: 1x PCIe x16, 2x PCIe x1, and 1x PCI slot. Repair Insights
Users looking for this "verified" schematic are often troubleshooting power issues or BIOS corruption.
BIOS Flashing: A known working method for this board involves renaming the BIOS file to AMIBOOT.ROM on a USB drive and using the CTRL+HOME recovery method.
Documentation: Detailed manuals and diagrams for the Eton board can be found on repositories like Scribd and Manuals.plus. H Ig41 Uatx User Manual | PDF | Hewlett Packard - Scribd
Understanding Electronics Schematics: A Basic Guide
Electronics schematics are diagrams that show how electronic circuits are connected. They are crucial for anyone involved in electronics, from hobbyists to professionals, for designing, troubleshooting, and understanding electronic circuits.
5. Revision History Note (Rev 11)
Based on standard engineering change practices, Rev 11 implies previous iterations. The following assumptions apply:
- All redlines and modifications marked in previous revisions (Rev 10 and prior) have been incorporated.
- [Optional: Insert specific changes for Rev 11, e.g., "Updated power supply filtering capacitors" or "Corrected USB data line swap"].
Block 3: PWM Control & Main Switcher
- PWM IC: IC501 (UC3843B – verified for REV 11, some earlier revisions used TL494).
- Main Switch: Q1 (13NM60N – 600V N-Channel MOSFET).
- Gate Drive: R510 (22Ω) + D510 (1N4148) – verify waveform with oscilloscope (50-65 kHz square wave).