Power supply Lenovo ThinkSystem 500W 230V/115V model 4P57A26290, redundant-capable server PSU

Lenovo ThinkSystem 500W 230V/115V server power supply (model 4P57A26290) is a hot-pluggable unit designed for Lenovo ThinkSystem chassis. The module delivers up to 500 watts of continuous output and supports both 230V and 115V input ranges, making it suitable for data center racks and smaller server rooms. The power supply is intended for direct replacement of failed units or for configuring N+1 redundancy to ensure continuous operation of critical systems.

Advantages

This Lenovo ThinkSystem power supply provides stable 500W output with dual-voltage capability, enabling flexible deployment across different regional power infrastructures. The unit is engineered for server-grade reliability and supports redundant-capable configurations to reduce downtime. Its compact form factor and hot-swap design allow for quick replacement without disrupting server operation, and compatibility with ThinkSystem chassis ensures straightforward integration.

Suitable for

• Replacing failed power modules in compatible Lenovo ThinkSystem servers
• Building redundant power configurations (N+1) for increased availability
• Use in rack-mounted data center servers and enterprise server rooms
• Hardware maintenance and field service replacements

Key specifications

• Output power: 500 W continuous
• Input voltage: 230 V / 115 V dual-voltage operation
• Form factor: hot-pluggable server power supply module compatible with Lenovo ThinkSystem chassis
• Redundancy: supports redundant-capable configurations for N+1 setups
• Cooling: integrated server cooling interface (fan-assisted, chassis-dependent)
• Connector type: server power backplane interface (model-specific to ThinkSystem enclosures)

How to use

Before replacing a power supply, verify compatibility with the target ThinkSystem chassis and power configuration. For hot-swap replacement, follow server manufacturer guidelines: ensure the server is in a supported state for module removal, remove the failed unit by releasing its retention latch, and slide the replacement into the bay until it seats and the latch engages. For installations involving redundant capability, install the additional module(s) and confirm the server firmware/management interface recognizes the new supply and that power-sharing and redundancy status are as expected.

Usage recommendations

Install power supplies in accordance with Lenovo service documentation and within the environmental limits of the server chassis. Use matched or approved power modules when creating redundant configurations, and verify that input voltage and rack power distribution meet the unit's 115 V/230 V requirements. For safety, perform replacements following ESD precautions and, when required, with power supplied to alternate modules to maintain system availability.