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General| Model | APW12 |
|---|---|
| Input Voltage | 200-240V AC |
| Input Current | 10A |
| Output Voltage | 12V |
| Rated Output Power | 1200W |
| Cooling | Fan |
| Output Power | 1600W |
| Operating Temperature | -20°C-70°C |
Ensure PSU is powered off and disconnected from outlet before working.
Allow capacitors to discharge for at least 10 minutes after unplugging to eliminate stored energy.
Wear appropriate PPE like insulating gloves and safety goggles for protection.
Use one hand to minimize risk of current passing through vital organs during contact.
Exercise extreme caution and attentiveness during the entire repair process.
Modifying internal circuitry will void the warranty; research risks before proceeding.
Lowering voltage/frequency reduces power draw, but avoid minimum voltage limits.
Removing hash boards reduces power draw by a third per board, allowing higher frequencies.
Lists necessary tools like screwdrivers, soldering iron, and 1 MΩ resistors.
Unplug PSU, wait 10 minutes for capacitors to discharge safely.
Remove 6 chassis screws to detach the top PSU cover plate.
Unscrew the 10 PCB mounting screws, noting potential conformal coating.
Gently lift PCB from enclosure, keeping power and fan connectors attached.
Position PCB top-down with enclosure aside for back-side access.
Identify the two sets of three 0805 surface mount resistors, labeled '2204'.
Scrape conformal coating from 4 pads where resistors will be soldered.
Bend and trim 1 MΩ resistor leads to span cleaned pads before soldering.
Solder two 1 MΩ resistors, ensuring they lie flat and do not touch other components.
Align PCB's black plastic correctly in the enclosure to prevent contact with metal.
Slide PCB back, align screw holes, and insert 10 mounting screws without touching metal.
Align and install the top PSU cover plate with its six screws.
Power on PSU, check fans, and verify 12V DC output at the 6-pin ATX connector.
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