D10-240p1a Schematic Guide

Generates the isolated +12VSB standby voltage. This independent power rail keeps the computer motherboard's startup logic alive, monitoring for the "Power On" signal from the front panel button or network wake events. 5. Secondary Output Rectification and Monitoring

Understanding the core specifications of the D10-240P1A is the first step in either diagnosing a fault or finding a replacement. Below is a breakdown of its electrical and physical properties:

Locating the connected to the feedback pin of the secondary IC. D10-240p1a Schematic

Confirm compatibility between a specific PC model and this PSU series.

The green wire on the P2 connector is typically the "Power Supply On" signal. Generates the isolated +12VSB standby voltage

The D10-240P1A does follow the standard ATX 24-pin power supply layout. Instead, it uses a proprietary 6-pin connector to deliver power to the motherboard. 6-Pin Proprietary Connector Pinout (Top to Bottom) Pin 1: 12Vmain12 cap V sub m a i n end-sub Pin 2: 12Vmain12 cap V sub m a i n end-sub Pin 3: GND Pin 4: GND Pin 5: PS-ON (Power Supply On) Pin 6: 12Vsb12 cap V sub s b end-sub (12V Standby)

You cannot use the standard "paperclip" test on this unit. To turn it on manually, you must short a specific pin from the P2 connector to GND, not the main P1 connector. Please consult a pinout guide for your specific motherboard. The green wire on the P2 connector is

Ensuring the output capacitors are rated for the higher voltage.

A voice, thin and crackling as if from a very old tape: “Is the schematic still flat? Don’t fold it. The trace is sensitive.”

If you are facing a power issue with your HP SFF machine, understanding the internal circuit diagram—or at least its output wiring—is essential. D10-240P1A Overview and Specifications