Power Supply HP 250W 12V model 922456-001 for HP systems

AC/DC power supply unit from HP designed to deliver stable 12V output at up to 250W for compatible HP desktop and server systems. This power supply is intended as a direct replacement for failed or worn units and as a spare to reduce downtime. Built to meet the electrical and thermal requirements of HP systems, it integrates with existing system power connectors and cooling pathways to ensure reliable operation under typical office and home workloads.

Advantages

The unit provides consistent 12V regulation and sufficient wattage to support core system components including motherboard, storage devices and cooling fans. Its form factor and connector layout are matched to compatible HP systems to simplify installation and reduce the need for adapters. Designed for continuous operation, the supply includes protection features that guard against common electrical faults and help preserve system stability.

Suitable for

• Replacing a faulty power supply in compatible HP desktop or rack-mounted systems
• Maintaining spare parts inventory for IT maintenance and repair
• Ensuring uninterrupted operation in small office or home office environments
• Supporting system upgrades that require a reliable 12V / 250W power source

Key specifications

• Output power: 250W maximum
• Output voltage: 12V
• Topology: AC/DC internal power supply for HP systems
• Cooling: integrated fan and designated airflow path compatible with system chassis
• Protections: overcurrent, overvoltage and short-circuit protection
• Form factor: OEM-compatible housing and connector arrangement for HP systems

How to use

Before installation, power down the system and disconnect the mains cable. Remove the chassis cover following the system manufacturer's instructions and locate the existing power supply. Disconnect all power cables from the motherboard and peripherals, then unfasten the power supply mounting screws and slide the unit out. Install the replacement by reversing the removal steps: position the new supply, secure mounting screws, reconnect all internal power connectors firmly, replace the chassis cover and reconnect the mains cable. Power on the system and check for normal operation and proper fan function.

Recommendations

Use this HP 250W 12V power supply only in systems explicitly compatible with its form factor and connector layout. Verify that total system power draw does not exceed the supply's 250W rating. Ensure adequate chassis ventilation and avoid exposing the unit to excessive dust, moisture or high ambient temperatures. If uncertain about compatibility or installation, consult HP documentation or a qualified technician.