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Grey ATX power supply unit with single fan and multiple connectors

Replace Power

Replace Power H350N-00-RPSU-B ATX power supply

SKU CH-FM46-8C0RQ MPN H350N-00-RPSU-B

ATX replacement power supply for Dell Inspiron 518 519 530 531 mini towers with 24-pin ATX, 4-pin P4, three SATA and three LP4 connectors

  • ColorGrey
  • TypeATX
  • Fans1
  • Weight0.1
  • ATX reduced depth fits Dell Inspiron 518 519 530 531 mini towers
  • 350 W output with +12V1 and +12V2 rails for stable power
  • Hi-Pot tested with low ripple and noise for clean delivery
  • 24-pin ATX, 4-pin P4, three SATA, three LP4 and one floppy connectors
  • Hold-up time 17 ms and rise time under 70 ms for reliable operation

Replacement PSU for Dell Inspiron Mini Tower

This ATX power supply replaces the original unit in Dell Inspiron 518 519 530 531 mini-tower systems. It delivers the standard output rails including +5V, -5V, +12V1, +12V2, +3.3V, -12V and +5V-SB through a 24-pin ATX connector, a 4-pin P4-12V connector, three SATA connectors, three LP4 connectors and one floppy connector. The reduced-depth form factor fits the chassis without modification.

Thermals noise and power draw

A single fan cools the unit while hi-pot testing and low ripple and noise specifications indicate stable delivery. The supply accepts 110/220 V AC input at 47-63 Hz and provides a hold-up time of 17 ms minimum at nominal load with a rise time of less than 70 ms. Grey colouring matches the original aesthetic.

Upgrade from failed or ageing OEM unit

The jump is worth it when the original supply has failed or shows instability under load. It restores the 350 W capacity with the same connector layout for existing drives and motherboard headers. Buyers who need higher wattage or modular cabling for a different build should look elsewhere.

Highlights

  • ATX reduced depth fits Dell Inspiron 518 519 530 531 mini towers
  • 350 W output with +12V1 and +12V2 rails for stable power
  • Hi-Pot tested with low ripple and noise for clean delivery
  • 24-pin ATX, 4-pin P4, three SATA, three LP4 and one floppy connectors
  • Hold-up time 17 ms and rise time under 70 ms for reliable operation

Specifications

BrandReplace Power
ModelH350N-00-RPSU-B
ColorGrey
TypeATX
Fans1
Weight0.1

Questions about this item

How do I install the ATX 24-pin connector on the Dell Inspiron 518 519 530 531 Mini Tower and what step is often missed?

Align the 24-pin (20+4) ATX connector with the motherboard socket and press until the latch clicks; the step often missed is seating the separate P4 4-pin 12V connector near the CPU socket.

What maintenance or replacement will this power supply need later?

The single internal fan is the only moving part; when bearing noise appears or airflow drops, replace the entire unit as the fan is not user-serviceable.

What limit appears first during sustained load on this 350W unit?

The hold-up time of 17 ms minimum at nominal input is the first limit; if AC power dips longer the outputs will drop before the 70 ms rise time can recover them.

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