1.1 Schematic New! - H-ig41-uatx Rev

Supports up to 4GB of DDR3 (1333/1066/800 MHz) across two slots. Some reports suggest the chipset can handle 8GB, but the board is officially rated for 4GB.

Users often look for schematics to diagnose power issues. Common points of failure on the board include: 3V/5V Regulator: Often checked if the board won't post. BIOS Chip (SPI): Pin 8 should typically show when the board has standby power. Resources for Manuals & Schematics

Measure the voltage across the output inductors (coils) next to the CPU socket. If VCORE is 0V, look at the PWM controller section of the schematic to see if the IC is receiving its enabling signal ( VR_ENABLE ). h-ig41-uatx rev 1.1 schematic

Reset Switch (Polarity does not matter).

Standard motherboard logic supplies 3.3V to the SPI flash memory chip (often an 8-pin package) to load system microcode. Testing: Using a multimeter, measure Pin 8 ( VCCcap V sub cap C cap C end-sub Supports up to 4GB of DDR3 (1333/1066/800 MHz)

The architecture of the H-IG41-uATX Rev 1.1 is divided into a classic two-chip hub structure: the Northbridge (Intel G41) and the Southbridge (Intel ICH7). Intel G41 Graphics and Memory Controller Hub (GMCH)

Disclaimer: This information is compiled for educational and repair purposes. HP, Foxconn, and Intel are trademarks of their respective owners. Always disconnect the power supply before manipulating jumpers or hardware. Common points of failure on the board include:

Crucial for repair: this page shows the power-on sequence. For example:

The Voltage Regulator Module (VRM) section dictates how 12V power from the ATX power supply is stepped down to roughly 1V–1.3V for the CPU VCore. The schematic maps out the PWM controller chip, MOSFETs (high-side and low-side), chokes, and solid capacitors. 3. Power Sequence Diagram

Repair forums detail specific failure modes for this board. Since you lack a schematic, focus on these known issues:

The G41 chipset on this revision is configured specifically for DDR3 memory. The schematic details a synchronous buck PWM controller that drops the main +5V or +12V rail down to .