Power supply Dell N0KPM 290W ATX 12V for Dell systems

The Dell N0KPM 290W ATX 12V power supply is designed for compatible Dell desktop systems, providing up to 290 watts of output power through a standard ATX 12V interface. It supplies stable power to the motherboard, CPU and peripheral components, enabling reliable operation after replacement or repair. The unit follows common ATX power form factors for straightforward installation in supported Dell chassis.

Advantages

This power supply delivers a maximum continuous output of 290W with regulated ATX 12V rails to maintain system stability under typical desktop workloads. Its design matches form factor and connector layouts used in compatible Dell systems to reduce installation effort and ensure a secure fit. The compact ATX profile and integrated connectors simplify replacement tasks and reduce the need to modify the chassis or cabling. The unit is intended for direct swap-in repairs, restoring power delivery without additional configuration.

Suitable for

• Repairing or replacing the original power supply in compatible Dell desktop models
• Restoring stable power to systems used for office productivity and general-purpose computing
• Service technicians and IT maintenance tasks requiring a like-for-like power unit

Key specifications

• Rated output power: 290 watts
• Form factor: ATX 12V compatible
• Main output: 12V rail(s) for CPU and motherboard supply
• Connector types: standard ATX power connectors used in Dell desktop systems
• Cooling: internal fan with airflow suited to the chassis design
• Intended operating environment: indoor desktop use at standard room temperatures

How to use

Before installation, power off the computer and disconnect the AC mains cable. Open the system chassis according to the Dell service instructions for the specific model. Remove the existing power supply by disconnecting all internal power connectors from the motherboard, drives and peripherals, then unscrew the unit from the chassis. Fit the replacement Dell N0KPM 290W ATX 12V power supply into the same mounting position and secure it with the original screws. Reconnect all internal power cables to their corresponding sockets, ensuring connectors are fully seated. Close the chassis, reconnect the AC mains cable and power on the system to verify stable operation.

Recommendations

Use this power supply as a direct replacement only in systems listed as compatible with ATX 12V Dell units. Verify connector compatibility and clearance within the chassis before purchase. If the system hosts power-hungry add-in cards or multiple high-power drives, confirm that total system power requirements remain within the 290W rating to avoid overload conditions.