My delivered ATX power supply doesn't work, even though I haven't installed it yet. What could be the reason?
The power supply can also be tested outside of a PC: connect PSON (green, pin 16) to GND (black, pin 17), for example with a paperclip. This connection starts the power supply. Then measure the voltages at the 24-pin ATX connector with a multimeter against GND (black):
* no longer present on some newer power supplies
My PC occasionally shuts down. I'm using a high-performance CPU / GPU and a 500 W power supply.
Many PC power supplies, especially in gaming systems, have multiple 12V rails (e.g. 12V1, 12V2), each often limited to about 18 A. Modern processors and graphics cards, however, can briefly require significantly higher currents. If this limit is exceeded, the power supply may shut the system down due to overload on, for example, the 12V1 rail.
My mainboard needs a 20-pin ATX connector, but the power supply has 24 pins.
Many power supplies feature a 20+4-pin connector. The additional 4-pin section can simply be detached or slid aside, leaving a 20-pin connector.
The BES-540T/BES-560T requires −48 V, but my source supplies +48 V. What can I do?
Can a standard ATX power supply be operated on a 220 VDC or 380 VDC battery/UPS (power plant construction)?
Can power supplies be delivered with a custom cable harness?
Yes, custom cable harnesses are available from a minimum order quantity (MOQ) of 300 pieces, or by arrangement.
What is the difference between ITE and medical power supplies?
Electrical performance data and form factors of both power supply types are often similar. The key differences lie in:
- Larger clearance and creepage distances
- Lower leakage current — medical power supplies meet stricter safety requirements
Looking for a power supply for AT mainboards with a P8/P9 connector
For older systems, the following ATX power supplies with particularly strong 3.3V and 5V rails are recommended:
In addition, the X1-116 adapter (ATX to AT) can be used.
I need a replacement part – what information is required for a replacement desktop power supply?
To find a suitable replacement unit, we need the following information:
- Photo of the type label, the cable harness, and the entire unit
- Sketch or drawing of the cable harness with cable lengths and connector types
- Desired quantity