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Green rectangular circuit board with multiple connectors and chips, part number UH920

DELL

DELL PowerEdge 6850 Backplane Daughter Board UH920 2x3

SKU CH-7Q91-B700Z

Backplane daughter board enables 2x3 hard-drive connectivity for PowerEdge 6850 servers

  • CPU TypeMotherboard
  • Replacement part for Dell PowerEdge 6850 servers
  • Backplane daughter board with 2x3 drive layout
  • Part number UH920 ensures correct compatibility
  • Connects motherboard to installed hard drives
  • New component ready for storage maintenance

Dell PowerEdge 6850 Backplane Daughter Board

This Dell PowerEdge 6850 backplane daughter board carries part number UH920 and is built as a direct replacement component for the PowerEdge 6850 server. It manages the interface between the motherboard and the installed hard drives, handling both data transfer and power delivery to the drive bays. The board is supplied new and is intended for technicians maintaining or restoring the storage subsystem of this specific server model.

2x3 drive backplane configuration upgrade

The board implements a 2x3 drive connection layout, which replaces a failed or degraded backplane in the existing chassis. Installing it restores the server's ability to address up to six drives in the supported arrangement, a necessary step when the original board no longer reliably supplies power or passes data to the drive bays. The jump is worth it when drive errors trace back to the backplane rather than the drives themselves.

Verify PowerEdge 6850 chassis and drive bay layout

Before ordering, confirm that the server is a Dell PowerEdge 6850 and that the chassis uses the 2x3 backplane form factor matched to part number UH920. Check that the daughter board mounting points and connector orientation align with the existing mid-plane and drive cage. Buyers needing a different drive count, a different server generation, or a hot-swap controller not integrated on this board will need a different part.

Highlights

  • Replacement part for Dell PowerEdge 6850 servers
  • Backplane daughter board with 2x3 drive layout
  • Part number UH920 ensures correct compatibility
  • Connects motherboard to installed hard drives
  • New component ready for storage maintenance

Specifications

CPU TypeMotherboard

Questions about this item

What server chassis and drive bay layout does the UH920 backplane daughter board fit?

The UH920 is built for the PowerEdge 6850 chassis and matches a 2x3 drive bay configuration.

Which connectors must be seated when installing the UH920 daughter board, and what step is commonly missed?

Align the board with the motherboard header and the backplane power connector; the step often missed is fully latching both connectors before securing the retention screw.

What component typically fails first on the UH920 and requires replacement?

The onboard power-regulation capacitors are the usual wear point and will need replacement after extended service.

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