Power supply unit Lenovo 180W 85% efficiency SFF model 00PC745

Lenovo 180W 85% efficiency SFF power supply (small-form-factor) is a compact internal unit engineered for select Lenovo desktop systems. It supplies up to 180 watts of DC power while meeting an efficiency level of approximately 85%, which helps reduce energy loss and heat generation inside constrained chassis. The design focuses on delivering stable voltages to core components and fitting into small-workstation enclosures where space and airflow are limited.

Advantages

This small-form-factor power supply offers a balance between size and output, enabling use in compact desktop builds without sacrificing reliable power delivery. Its rated efficiency decreases wasted energy compared with lower-efficiency units, contributing to lower operating temperatures and marginally improved system longevity. The unit’s form factor and connector layout are intended for straightforward replacement or upgrade in compatible systems, simplifying maintenance and reducing downtime.

Suitable for

• Replacement power supply for supported Lenovo small-form-factor desktops
• Spare unit for IT service and maintenance of compact workstations
• Systems requiring a stable 180W power budget in a limited-space chassis

Key specifications

• Maximum output power: 180 watts
• Efficiency: rated approximately 85%
• Form factor: small-form-factor (SFF) internal power supply
• Designed for use in compact desktop enclosures with limited internal space
• Delivers regulated DC rails appropriate for standard desktop components

How to use

Before installation, power down the system and unplug the mains cable. Open the chassis according to the manufacturer’s service instructions and locate the existing power supply. Disconnect all power connectors from the motherboard and peripherals, then remove the old unit. Install the SFF power supply into the designated bay, secure it with mounting points, and reconnect all power cables to the motherboard and drives exactly as they were connected previously. Close the chassis, reconnect the mains cable, and power on the system to verify normal operation and that connected components receive power.

Usage recommendations

Use this power supply only in compatible Lenovo small-form-factor systems. Verify system power requirements and connector compatibility before installation. Maintain adequate case ventilation around the power supply and avoid obstructing airflow. If the system exhibits instability after replacement, recheck connections and consult system documentation or professional support.