IGX Orin Mechanical Design and Installation Guide (Latest Version)

This chapter provides installation details and guidelines for the following:

  • Orin Industrial Module

  • Orin Industrial Module heat sink

  • ConnectX-7 heat sink

  • BMC Module


The heat sink installation instructions provided in this chapter are intended for use in NVIDIA production. Customers with custom thermal solutions (or off-the-shelf) should consult with their vendor for appropriate installation instructions.

To install the Orin Module correctly, follow the following sequence and mounting hardware instructions:

  1. Have visual inspection of all pins in the connector on both connectors before mating on the motherboard.

  2. Connectors should be parallel with respect to each other during mating.

  3. Use a smooth motion during mating (no mechanical shock, knocking, or hammering).

  4. Secure with M3 screws (4x) from the top of the module.

    1. Initially torque screws to 1.5 in-lbf in sequence as shown in Figure 7.

    2. Fully torque to 4.5 in-lbf (±0.4) following the same sequence.


Figure 7. Mating Orin Module to the Motherboard


Figure 8. Orin Module Screw Sequence

If a fixture is used to do the mating, then that fixture should hold the mating connectors parallel to within ± 2 degrees. Also, the fixture should allow the connectors to become parallel as the mating process progresses.

The thermal interface material (TIM) should be applied on the bottom of the Orin Module heat sink. Make sure to remove the protective film from the TIM. Using a fixture, and following the Orin Module mounting holes, apply the heat sink to the Orin Module in the orientation as shown in Figure 9.


Figure 9. Orin Module Heat Sink Installation

Using a fixture, secure the heat sink and Orin Module to the motherboard. Screws connect with a stiffener pre-installed on the bottom of the motherboard. Secure with (4x) M3 screws. Initially, torque the screws to 1.5 in-lbf in sequence as shown in Figure 10. Then fully torque to 4.5 in-lbf (±0.4) following the same sequence.


Figure 10. Orin Module Heat Sink Screw Sequence

Inspect the Orin Module on all sides after securing the heat sink and the Orin Module to the motherboard. Make sure that the Orin Module is fully and evenly inserted and is engaged properly in the motherboard connector.

  1. While the heat sink is installed, the heat sink should be even and not tilted. It would be a cause of thermal issue.

  2. Make sure that the TIM is fully cured if required.

The NVIDIA IGX Orin Boards Kit does not include the installation of a heat sink on top of the NVIDIA ConnectX-7 SoC. Instead, NVIDIA provides detailed ordering information for customers to purchase the appropriate heat sink with screws directly from the vendor.

  • Vendor name: Cooler Master

  • Contact: See Note

  • Heat sink: TBD

  • Screws: TBD

  • TIM: TBD


Contact NVIDIA support team for person contact information.

Align and attach a TIM pad center to the ConnectX-7 heat sink bottom. The TIM pad size should be equivalent to ConnectX-7 lid size at least.


Figure 11. Attached TIM Pad to ConnectX-7 Heat Sink Bottom

Align and place the heat sink on top of the ConnectX-7 SoC with orientation as shown.


Clean the mating surfaces of board GPU and heat sink with isopropyl alcohol (IPA) and let them dry before the heat sink attachment.


Figure 12. Heat Sink on top of ConnectX-7 SoC

Install spring screws (4X) through the pre-installed stiffener and motherboard mounting hole to the heat sink. Apply torque 2.0~2.5 in-lbf to screws in sequence as indicated.


NVIDIA strongly suggests the use of a supporting fixture with a hold-down feature to prevent the cooler on the SoC from tilting when tightening the screws.


Figure 13. Spring Screws Installation


If the four screws can be tightened at the same time using a 4-axis automatic screwing machine, then the sequence can be ignored.

Install BMC Module bracket. Align two BMC Module guide holes with two guide pins on the bracket (highlighted with blue lines) and secure with two M3 × 4.5 mm screws (highlighted with red lines). Torque to 4.5 in-lbf (±0.4).


Figure 14. BMC Module Bracket Installation

Align the BMC Module golden finger with the connector on the motherboard and insert the card. Make sure that the bracket mounting holes to the PCB are aligned as well. Double check the inserted card, and make sure it is fully and evenly engaged in the motherboard connector. Secure the BMC Module bracket to the motherboard with two M3 × 4.5 mm screws (highlighted with red lines). Torque to 4.5 in-lbf (±0.4).


Figure 15. BMC Module Installation

© Copyright 2023, NVIDIA. Last updated on Mar 21, 2023.