Replace Power power supply for HP A523x A524x A527x A530e A530n A532x A535w A545c

Replacement PSU for HP Desktops

This Replace Power supply fits HP A523x A524x A527x A530e A530n A532x A535w A545c models. It uses a standard ATX form factor with reduced depth for easier installation in compact cases. The unit includes a 24-pin motherboard connector, a 4-pin CPU connector, three SATA power plugs, two Molex plugs and one floppy connector. An 80 mm fan provides cooling for stable long-term operation.

ATX Interface Limits

The power supply delivers a total continuous output of 280 watts with a peak rating of 420 watts. AC input accepts 110 or 220 volts at 47 to 63 hertz. Output rails provide +3.3V, +5V, -5V, +12V1, +12V2, -12V and +5V standby. Hold-up time is at least 17 ms at nominal input and rise time stays below 70 ms. These figures define the practical power ceiling for any connected components.

Capacity and Headroom

The 280 watt continuous rating comfortably runs typical office desktop configurations with integrated graphics, a single hard drive and basic peripherals. Adding a discrete graphics card or multiple drives will likely exceed the available headroom on the +12V rails. Builders needing more power for modern GPUs or high-core-count CPUs should look for a higher-wattage unit.