Hig41uatx Rev 11 Schematic - |link|

HP H-IG41-uATX (Eton) motherboard, particularly revision 1.1, is a micro-ATX board commonly found in HP and Compaq desktop PCs like the HP Compaq 500B

Rev 11 includes a Thermal Throttling circuit (Thermaltrip#) connected to a thermistor near the CPU socket. If missing, the board shuts down after 30 seconds. hig41uatx rev 11 schematic

The HIG41UATX Rev 11 typically uses a 4MB or 8MB SPI flash (Winbond 25Q64). The schematic shows: HP H-IG41-uATX (Eton) motherboard, particularly revision 1

The "Rev 11" designation is crucial. Schematics often vary significantly between PCB revisions (Rev 10 vs Rev 11) due to changes in VRM controller ICs, resistor divider networks for voltage identification (VID), and power sequencing logic. Using the wrong revision schematic will lead to misdiagnosed shorts and blown components. The schematic shows: The "Rev 11" designation is crucial

While the board may be obsolete for modern gaming, thousands of industrial machines, CNC controllers, and arcade cabinets still run on this G41 platform. Having the correct Rev 11 schematic on hand – and understanding its power sequencing, clock generation, and I/O routing – separates a professional board repairer from a parts swapper.