# VDD\_IN voltage issue about Orin nx 16g with Super mode

**URL:** <https://forums.developer.nvidia.com/t/vdd-in-voltage-issue-about-orin-nx-16g-with-super-mode/321245>\
**Category:** Jetson Orin NX\
**Tags:** jetson-orin, jetson\
**Created:** [January 23, 2025, 6:35am UTC](https://forums.developer.nvidia.com/t/vdd-in-voltage-issue-about-orin-nx-16g-with-super-mode/321245 "2025-01-23T06:35:28Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![bbear953308023](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@bbear953308023](https://forums.developer.nvidia.com/u/bbear953308023)\
**Post date:** [January 23, 2025, 6:35am UTC](https://forums.developer.nvidia.com/t/vdd-in-voltage-issue-about-orin-nx-16g-with-super-mode/321245/1 "2025-01-23T06:35:28Z")

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I am so happy that the Jetson release the super mode for Orin series.  
And I flash it into my Orin nx 16g with custom carrier board from seeed’s J4012.  
I test it with MAXN\_SUPER mode with both CPU and GPU full loaded. And the total system power reached 40W.

But when I look into the Product Design Guide from [Jetson Orin NX Series and Jetson Orin Nano Series Product Design Guide](https://developer.download.nvidia.com/assets/embedded/secure/jetson/orin_nx/docs/Jetson-Orin-NX-Nano-Design-Guide_DG-10931-001_v1.4.pdf? __token__ =exp=1737613073~hmac=1a2ef35f8d04a93d10b42c00854134a2a678fd65b99af27b492dbcf86371f92c&t=eyJscyI6ImdzZW8iLCJsc2QiOiJodHRwczovL3d3dy5nb29nbGUuY29tLmhrLyIsIm5jaWQiOiJzby1saW5rLTE5MDg3NS12dDQ4In0=). I find it require minimum 8V to the VDD\_IN.

And I the current voltage of my carrier board’s VDD\_IN is 5V.  
But it seems that the system works fine till now.  
I am wondering about the reason why we need to change the voltage of VDD\_IN to 8V if we work with Orin nx 16g in Super mode.

Looking forward to you reply~

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**Author:** ![Trumany](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/trumany/32/14043_2.png) [@Trumany](https://forums.developer.nvidia.com/u/Trumany)\
**Post date:** [January 23, 2025, 6:56am UTC](https://forums.developer.nvidia.com/t/vdd-in-voltage-issue-about-orin-nx-16g-with-super-mode/321245/4 "2025-01-23T06:56:22Z")

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Hi, the module can not bear current more than 5A. So it must be higher than 8V for VDD\_IN for super mode with 40W power consumption.

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**Author:** ![chrisvsbender](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@chrisvsbender](https://forums.developer.nvidia.com/u/chrisvsbender)\
**Post date:** [January 31, 2025, 4:22pm UTC](https://forums.developer.nvidia.com/t/vdd-in-voltage-issue-about-orin-nx-16g-with-super-mode/321245/5 "2025-01-31T16:22:35Z")

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Can someone explain more about the device tree changes for the new super mode? I can see in the super mode device tree sources for the Orin NX modules (SKU0-4) that the VDD\_IN regulator is still limited to 5V, so how does NVIDIA allow the devkits to reach higher voltages on the VDD\_IN line with this new version? Does it have to do with the adjustments to `oc_throttle` or `bjt_offsets` in the `soctherm` of the bpmp dtb?

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**Author:** ![WayneWWW](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/waynewww/32/14043_2.png) [@WayneWWW](https://forums.developer.nvidia.com/u/WayneWWW)\
**Post date:** [February 5, 2025, 6:18am UTC](https://forums.developer.nvidia.com/t/vdd-in-voltage-issue-about-orin-nx-16g-with-super-mode/321245/7 "2025-02-05T06:18:35Z")

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HI @chrisvsbender please file a new topic. And we can discuss your question there.

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**Author:** ![system](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/system/32/68080_2.png) [@system](https://forums.developer.nvidia.com/u/system)\
**Post date:** [February 24, 2025, 7:42am UTC](https://forums.developer.nvidia.com/t/vdd-in-voltage-issue-about-orin-nx-16g-with-super-mode/321245/9 "2025-02-24T07:42:20Z")

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