Corsair CX750

CORSAIR CX750 80 Plus Bronze Non Modular ATX 750 Watt Power Supply User Manual

Model: CX750 (CP-9020279-NA)

1. Producte acabatview

The CORSAIR CX750 is an 80 PLUS Bronze certified non-modular ATX power supply designed to provide reliable and efficient power to your PC. It features a 120mm thermally controlled low-noise cooling fan for quiet operation and a compact design for easy installation in most modern PC cases.

Característiques clau

  • 80 PLUS Bronze Certified: Achieves up to 88% operational efficiency, reducing heat generation and energy consumption.
  • Full Continuous Power: Delivers its full rated wattage consistently.
  • Low-Noise Cooling: Equipped with a 120mm thermally controlled fan that operates quietly under typical loads.
  • Compacte Casing: Measures 125mm in length for broad compatibility with PC cases.
  • Cables integrats: Features black sleeved cables and a black powder-coated casing for a clean aesthetic.
CORSAIR CX750 ATX Power Supply
Figure 1: CORSAIR CX750 ATX Power Supply. This image shows the main unit of the power supply.
CORSAIR CX750 ATX Power Supply with branding
Figura 2: Frontal view of the CORSAIR CX750 ATX Power Supply, highlighting the model name and brand.
CORSAIR CX750 80 PLUS Bronze Power Efficiency
Figure 3: The 80 PLUS Bronze certification on the CORSAIR CX750, indicating high power efficiency.
CORSAIR CX750 Power Supply and packaging
Figure 4: The CORSAIR CX750 Power Supply shown alongside its retail packaging.

2. Guia d'instal·lació

2.1 Precaucions de seguretat

  • Desconnecteu sempre el cable d'alimentació de la presa de corrent abans d'instal·lar o treure la font d'alimentació.
  • Ensure your computer case is properly grounded.
  • Avoid contact with internal components of the power supply. High voltagsón presents.
  • Do not attempt to repair the power supply yourself. Refer to qualified service personnel.

2.2 Instal·lació física

  1. Prepare your PC Case: Open your PC case and locate the power supply mounting area, typically at the rear top or bottom.
  2. Muntar la font d'alimentació: Gently slide the CORSAIR CX750 into the designated slot. Ensure the fan faces the correct direction for optimal airflow (usually facing down if there's a bottom vent, or up if not). Secure the power supply to the case using the provided screws.
CORSAIR CX750 Power Supply dimensions
Figure 5: Dimensions of the CORSAIR CX750 Power Supply, illustrating its compact 125mm length for easy case integration.

2.3 Connexions de cable

The CORSAIR CX750 is a non-modular power supply, meaning all cables are permanently attached. Connect the necessary cables to your motherboard and components.

CORSAIR CX750 Power Supply cable types
Figure 6: Illustration of the various cables included with the CORSAIR CX750 Power Supply, including ATX, ATX 12V/EPS12V, PCIe, SATA, and PATA connectors.
  • Cable ATX de 24 pins: Connect to the main power connector on your motherboard.
  • 8-pin (4+4) ATX 12V/EPS12V Cable: Connect to the CPU power connector on your motherboard.
  • Cables PCIe de 6+2 pins: Connecteu-vos a la targeta o targetes gràfiques segons calgui.
  • Cables d'alimentació SATA: Connecteu-vos a dispositius SATA com ara SSD, HDD i unitats òptiques.
  • PATA (Molex) Power Cables: Connect to older peripherals or case fans if needed.

Ensure all connections are firm and properly seated. Route cables neatly to improve airflow and aesthetics within your PC case.

3. Funcionament

3.1 Engegada inicial

  1. After all components are connected and the case is closed, connect the AC power cord to the power supply and then to a wall outlet.
  2. Gireu l'interruptor d'alimentació de la part posterior de la font d'alimentació a la posició "ON" (I).
  3. Premeu el botó d'engegada de la carcassa de l'ordinador per iniciar el sistema.

3.2 Funcionament del ventilador

The CORSAIR CX750 features a 120mm thermally controlled fan. This fan is designed to operate quietly, spinning at higher speeds only when the power supply is under heavy load. At lower loads, the fan speed will decrease, resulting in quieter operation.

CORSAIR CX750 120mm low-noise fan
Figura 7: Primer pla view of the 120mm low-noise cooling fan on the CORSAIR CX750 Power Supply.

4. Manteniment

Un manteniment adequat garanteix la longevitat i el rendiment òptim de la vostra font d'alimentació.

  • Eliminació de pols: Periodically clean the power supply's fan and ventilation grilles using compressed air. Ensure the system is powered off and unplugged before cleaning.
  • Condicions ambientals: Operate the power supply in a well-ventilated area, free from excessive dust, humidity, and extreme temperatures.
  • Gestió de cables: Ensure cables are not obstructing airflow within the PC case.

5. Solució De Problemes

If you encounter issues with your CORSAIR CX750 power supply, refer to the following common troubleshooting steps:

5.1 Sense alimentació / El sistema no s'inicia

  • Comproveu les connexions d'alimentació: Assegureu-vos que el cable d'alimentació de CA estigui ben connectat tant a la font d'alimentació com a la presa de corrent.
  • Comproveu l'interruptor d'alimentació: Confirm the power supply's ON/OFF switch is in the 'ON' (I) position.
  • Connexions internes: Double-check that the 24-pin ATX and 8-pin CPU power cables are firmly connected to the motherboard. Also, ensure PCIe power cables are connected to your graphics card(s).
  • Test Wall Outlet: Try plugging another device into the wall outlet to confirm it is functional.
  • Isolate Components: If possible, disconnect all non-essential components (e.g., extra drives, peripherals) and attempt to power on the system with only the motherboard, CPU, and one stick of RAM connected.

5.2 System Instability / Random Shutdowns

  • Overload Check: Ensure your system's total power consumption does not exceed the 750W capacity of the power supply. Use an online PSU calculator if unsure.
  • Ventilació: Verify that the power supply fan and case ventilation are not obstructed, preventing proper cooling.
  • Problemes amb els components: Instability can also be caused by other faulty components (RAM, CPU, GPU). If the PSU is suspected, testing with another known-good power supply may be necessary.

6. Especificacions tècniques

CaracterísticaEspecificació
Nom del modelCX750
Número de modelCP-9020279-NA
MarcaCorsari
Potència de sortidatage750 watts
Certificació 80 PLUSBronze
Factor de formaATX
Disseny de fonts d'alimentacióNo modular
Mètode de refrigeracióAire (ventilador de 120 mm)
Dimensions de l'article (L x A x A)125 mm x 150 mm x 86 mm (4.92 x 5.91 x 3.39 polzades)
Pes de l'article4.4 lliures
Volum d'entrada màximtage132 volts de corrent altern
Vol. d'entrada mínimatage115 volts
Connector principal24 Pin ATX
Nombre de fans1
UPC840006671053

7. Garantia i Suport

7.1 Garantia del fabricant

The CORSAIR CX750 Power Supply is covered by a Garantia del fabricant de 3 anysAquesta garantia cobreix els defectes de materials i de fabricació en condicions d'ús normal. Si us plau, conserveu el comprovant de compra per a reclamacions de garantia.

7.2 Suport tècnic

For technical assistance, troubleshooting, or warranty inquiries, please visit the official Corsair support weblloc o poseu-vos en contacte amb el seu servei d'atenció al client.

Visit Corsair Support

© 2026 Corsair. All rights reserved. Information subject to change without notice.

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