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P74737-B21

Riser

HPE ProLiant Compute DL380 Gen12 2U x8/x16 Tertiary Riser Kit

Verified in 1 active model(s): HPE ProLiant DL380 Gen12

Documentation of this part

Verified documentation; every sentence refers to an official HPE document (press [number] to see the quote).

What it is

  • P74737-B21 is the HPE ProLiant Compute DL380 Gen12 2U x8/x16 Tertiary Riser Kit.

Why this part number

  • P74737-B21 provides Tertiary Riser slots 7 and 8 on Proc 2, and both of these use PCIe 5.0.

Features

  • Slot 7: PCIe 5.0, Bus Width X16, Connector Width X16, full-height, full-length, Proc 2.
  • Slot 8: PCIe 5.0, Bus Width X8, Connector Width X16, full-height, full-length, Proc 2.

Official notes

  • Up to one Tertiary Riser can be selected per server.
  • Two Tertiary Riser options are supported.
  • After completing your Smart Chassis configuration, set the Smart Chassis quantity to 1. OCA will automatically select the required cables, which will appear under Storage Devices (Step 5) > Internal Storage Controller Cables.
  • No manual cable selection is required.
  • Refer to the PCIe Expansion Slot section above for detailed Riser card and accessory selection guidance.
  • Review the PCIe Expansion Slots section for slot numbering, bus width, processor requirements, and riser configuration details.
  • A second processor is required when selecting a secondary or tertiary riser.
  • The 3x16 secondary riser and tertiary riser cannot be selected together.

Compatibility & limits

  • A second processor is required when selecting a secondary or tertiary riser.
  • The 3x16 secondary riser and tertiary riser cannot be selected together.
  • Up to one Tertiary Riser can be selected per server.

How it differs

  • Slot 8 has Bus Width X8 on P74737-B21 and Bus Width X16 on P76451-B21.

Description

Tertiary riser

The tertiary riser provides extra PCIe slots in the third area at the back of the chassis.

It is used for configurations with many network cards, HBAs or GPUs.

The chassis's maximum expansion capacity is reached.

This text is the general explanation of this category of part (not a claim about one specific model).

Attributes (extracted from the official description)

Slots
2
Lanes
x8/x16

Compatibility map

The relations of this part with other parts, from the audited QuickSpecs rules and the compatibility graph only (every line with its official source).

P74737-B21P51083-B21P71117-B21P71118-B21P71119-B21

Click a part or a relation line (or press Enter) to pin its explanation and source; Esc releases it. Drag to pan the map or use the arrow keys; zoom with the buttons, the + and − keys or Ctrl with the mouse wheel.

Hover or click a part or a relation to show its recorded rule and official source.

  • Incompatible: ⁦P51083-B21⁩ and ⁦P74737-B21⁩ are incompatible. رایزر ثانویه ⁦3x16⁩ و رایزر ثالثی را نمی‌توان با هم انتخاب کرد. (⁦FA⁩)
  • Requires: ⁦P74737-B21⁩ requires ⁦P71117-B21⁩. انتخاب رایزر ثانویه یا ثالثی نیازمند پردازنده دوم است. (⁦FA⁩)
  • Requires: ⁦P74737-B21⁩ requires ⁦P71118-B21⁩. انتخاب رایزر ثانویه یا ثالثی نیازمند پردازنده دوم است. (⁦FA⁩)
  • Requires: ⁦P74737-B21⁩ requires ⁦P71119-B21⁩. انتخاب رایزر ثانویه یا ثالثی نیازمند پردازنده دوم است. (⁦FA⁩)

Active models in which this part is listed

HPE ProLiant DL380 Gen12

step «Risers and PCIe/OCP expansion»Add to this model's configuration

Related rules (2)

  • RequirementA general rule that covers this part through its attributes

    انتخاب رایزر ثانویه یا ثالثی نیازمند پردازنده دوم است. (⁦FA⁩)

    Source: a00073551enw — page 16
    HPE ProLiant Compute DL380 Gen12
    “HPE ProLiant Compute DL380 Gen12 QuickSpecs” — a00073551enw · Version 20 — page 16View documentVendor siteSearch this document
    A second processor is required when selecting a secondary or tertiary riser.
  • IncompatibilityA general rule that covers this part through its attributes

    رایزر ثانویه ⁦3x16⁩ و رایزر ثالثی را نمی‌توان با هم انتخاب کرد. (⁦FA⁩)

    Parts on the other side: P51083-B21

    Source: a00073551enw — page 16
    HPE ProLiant Compute DL380 Gen12
    “HPE ProLiant Compute DL380 Gen12 QuickSpecs” — a00073551enw · Version 20 — page 16View documentVendor siteSearch this document
    The 3x16 secondary riser and tertiary riser cannot be selected together.

Verification and sources

PartSurfer status: Matches PartSurfer

PartSurfer: HPE PROLIANT COMPUTE DL380 GEN12 2U X8/X16 TERTIARY RISER KIT

Document row: a00073551enw — page 44
HPE ProLiant Compute DL380 Gen12
“HPE ProLiant Compute DL380 Gen12 QuickSpecs” — a00073551enw · Version 20 — page 44View documentVendor siteSearch this document
HPE ProLiant Compute DL380 Gen12 2U x8/x16 Tertiary Riser Kit P74737-B21

This page contains only the audited data of the official vendor documents (HPE, Lenovo, Dell) for the active models. Price and availability are given through the quote request in the configurator.