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Grey ATX power supply unit with fan grille and cable bundle

Logisys Computer Inc.

Logisys Computer Inc. SR5703WM 480W ATX power supply

SKU CH-N0HY-MTT5D MPN SR5703WM

ATX power supply with 480 watts, 20+4 pin main connector, P4, Molex, SATA and floppy connectors, plus over-power, short-circuit and over-voltage protection

  • ColorGrey
  • TypeATX
  • Fans1
  • Weight3
  • Guaranteed fit for Compaq Presario SR5703WM (NC783AA)
  • 480 W output supports additional devices over lower-wattage units
  • 20+4-pin main connector works with both 20-pin and 24-pin motherboards
  • Over-power, over-voltage and short-circuit protection built in
  • High-efficiency, low-noise fan with UL 1950 compliance

Direct replacement for Compaq Presario

This ATX power supply is guaranteed to fit the Compaq Presario SR5703WM (NC783AA) chassis. It delivers 480 watts, an upgrade over the original lower-wattage unit, allowing extra devices to be added. The grey housing includes a single fan with low noise and ripple characteristics. On/off switch and multiple protection circuits are built in.

Suits owners of this exact Presario model

Builders working on any other case or motherboard layout should look elsewhere because the connector set and physical mounting are tailored to this specific system. The unit provides one 20+4 pin main connector, one 12V P4 connector, three 4-pin Molex, two SATA and one floppy connector. No other form factors or connector configurations are supported.

480 watt total output with +12 V at 16 A

The combined output reaches 480 watts across all rails, with the +12 V rail rated at 16 A, +5 V at 36 A and +3.3 V at 28 A. Minor rails supply -12 V at 0.8 A, -5 V at 0.5 A and +5 V standby at 2 A. Input accepts 50/60 Hz at 10 A / 5 A. These figures decide whether the unit can power your intended component mix.

Highlights

  • Guaranteed fit for Compaq Presario SR5703WM (NC783AA)
  • 480 W output supports additional devices over lower-wattage units
  • 20+4-pin main connector works with both 20-pin and 24-pin motherboards
  • Over-power, over-voltage and short-circuit protection built in
  • High-efficiency, low-noise fan with UL 1950 compliance

Specifications

BrandLogisys
ModelSR5703WM
ColorGrey
TypeATX
Fans1
Weight3

Questions about this item

Will the SR5703WM 480W ATX unit connect to my existing 20-pin motherboard header?

Yes, the main connector is a 20+4-pin design that works with both 20-pin and 24-pin motherboard sockets.

How can I verify the PSU is delivering power correctly after installation?

The unit includes over-voltage, over-power and short-circuit protection; if the system posts and runs stably the protections are functioning.

Does the SR5703WM come with SATA power cables or must I buy them separately?

Two SATA power connectors are already attached to the PSU, so no extra cables are required for SATA drives.

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