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Rectangular silver server power module with rear fan grille and AC inlet

Lenovo

Lenovo 94Y5975 System x 550W Platinum AC Power Supply

SKU CH-5Z8B-HFQ1T

A 550 W server power module with 80 Plus Platinum efficiency, accepting 120 V AC and 230 V DC input

  • TypePower Module
  • Input Voltage120 V AC 230 V DC
  • Features80 Plus Platinum
  • 550 W output supports dense server deployments
  • 80 Plus Platinum certification reduces energy waste
  • 120 V AC and 230 V DC input covers global racks
  • Environmentally friendly design meets strict efficiency standards
  • Lenovo 94Y5975 part ensures verified compatibility

550 W Platinum server power module

The Lenovo 94Y5975 is a 550 W AC power supply built for System x servers. It carries 80 Plus Platinum certification for high efficiency and accepts both 120 V AC and 230 V DC input. The unit is sold new and designed as a hot-pluggable power module.

For rack servers needing redundant 550 W units

This supply suits administrators populating or repairing compatible System x chassis that require a 550 W Platinum module. It will not fit desktop workstations, consumer PCs or any chassis that uses a different form factor or wattage rating. Buyers who need higher output or a different connector layout should look at other models.

Integrates into redundant System x power bays

The module slides into the server’s power bay and shares load with matching units for redundancy. It draws from standard 120 V AC or 230 V DC facility power without extra adapters. High Platinum efficiency reduces waste heat, leaving more thermal headroom for compute components inside the rack.

Highlights

  • 550 W output supports dense server deployments
  • 80 Plus Platinum certification reduces energy waste
  • 120 V AC and 230 V DC input covers global racks
  • Environmentally friendly design meets strict efficiency standards
  • Lenovo 94Y5975 part ensures verified compatibility

Specifications

BrandLenovo
Series80 Plus
TypePower Module
Input Voltage120 V AC 230 V DC
Features80 Plus Platinum

Questions about this item

Which Lenovo System x chassis accepts the 94Y5975 550 W Platinum power module?

The 94Y5975 is designed for Lenovo System x servers that support hot-plug 550 W AC power modules; consult your server's parts list to confirm the correct bay and redundancy configuration.

Can the 94Y5975 share a load with an older 80 Plus Gold unit in the same server?

Mixing efficiency ratings is not recommended; the 94Y5975 carries 80 Plus Platinum certification, so pairing it with a Gold-rated supply may prevent the server from achieving full redundant operation.

How do I verify the 94Y5975 is delivering 550 W after installation?

Check the server's management console or front-panel LEDs — both will report the module as present, online and supplying up to 550 W when the 94Y5975 is seated correctly and fed with 120 V AC or 230 V DC.

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