PS 850W — Cross-Brand Comparison

About PS 850W

Server power supplies are precisely engineered for chassis-specific connector layouts, voltage rails, and hot-swap signaling. The PS 850W is a wattage-specific PSU module; this page lists it for HPE and IBM, each under its own OEM part numbers.

Cross-referencing guidance

When cross-referencing a PSU between brands, verify three things: (1) physical connector layout (Dell uses proprietary keyed connectors that differ from HPE Flex Slot and Lenovo Common Slot designs), (2) signal protocol (most modern OEMs use PMBus 1.2 with vendor-specific extensions), (3) firmware handshake (the BMC validates the PSU at power-on — incorrect firmware triggers a no-power fault). ICD matches the part number to the target server and confirms compatibility on the quote.

Brands ICD cross-references for this component

ICD maintains sourcing and engineering expertise across all major server OEMs. Even when our public catalog has limited entries for the PS 850W, our team can source equivalents from these brands, matched by part number:

• Dell EMC — PowerEdge, PowerVault, PowerStore, PowerScale, Unity platforms
• HPE — ProLiant, Synergy, Apollo, MSA, Nimble, Aruba
• Lenovo — ThinkSystem SR/HR, ThinkAgile, Storage DS-series
• Cisco — UCS B/C/S-series, Nexus, MDS
• IBM — System x (legacy), Power systems, FlashSystem
• Supermicro — TwinPro, BigTwin, FatTwin, SuperBlade platforms
• NetApp — FAS, AFF, E-Series controllers and shelves

ICD cross-reference workflow

Submit any server part number and the target chassis it should fit. ICD matches the part numbers through the OEM cross-reference and confirms fit, firmware requirements and the warranty implications of mixing brands on the quote. The quote returns within 24 hours with the matched equivalents, their condition (New, Renewed or Refurbished) and pricing.