# AGX module not powering up in OEM product **URL:** \ **Category:** Jetson AGX Xavier\ **Tags:** boot\ **Created:** [August 24, 2020, 5:25pm UTC](https://forums.developer.nvidia.com/t/agx-module-not-powering-up-in-oem-product/148136 "2020-08-24T17:25:43Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![larry.ciummo](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@larry.ciummo](https://forums.developer.nvidia.com/u/larry.ciummo)\ **Post date:** [August 24, 2020, 5:25pm UTC](https://forums.developer.nvidia.com/t/agx-module-not-powering-up-in-oem-product/148136/1 "2020-08-24T17:25:43Z")
Hi: I programmed an AGX module with Linux in a dev kit and tested it out. I also verifed a linux login on uart1 via the RasPi connection - I get a linux login prompt. We removed the module/carrier from the dev kit and plugged it into our board. After power up, nothing coming out of uart1 or 2 header on the carrier. Module drawing 220mA at 12V. We’ve checked a few pins - CARRIER\_POWER\_ON is high after power on. We didnt’ wire forced recovery to our system - it is pulled high in the GPU, correct? Any other things we can check on our carrier? Thanks LArry ---
**Author:** ![larry.ciummo](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@larry.ciummo](https://forums.developer.nvidia.com/u/larry.ciummo)\ **Post date:** [August 25, 2020, 12:01am UTC](https://forums.developer.nvidia.com/t/agx-module-not-powering-up-in-oem-product/148136/3 "2020-08-25T00:01:08Z")
I wrote a startup script that saved thd kernel logs after each boot. The board is coming up ok - there’s just nothing on uart1. The uart signal passes from the Jetson to our main carrier and then out to a debug board with the peripheral headers. We missed something. Thanks. ---
**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:** [August 25, 2020, 1:10am UTC](https://forums.developer.nvidia.com/t/agx-module-not-powering-up-in-oem-product/148136/4 "2020-08-25T01:10:44Z")
You mean the system can boot up? Please share the log for check. Did you probe the UART1 pins with oscilloscope? Is there any signals coming out? ---
**Author:** ![larry.ciummo](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@larry.ciummo](https://forums.developer.nvidia.com/u/larry.ciummo)\ **Post date:** [August 25, 2020, 2:17pm UTC](https://forums.developer.nvidia.com/t/agx-module-not-powering-up-in-oem-product/148136/5 "2020-08-25T14:17:09Z")
Thanks. Yes, system can start up OK per the log I looked at an nothing really interesting. The console login processes are started, just like on the dev board. Nothing coming on on UART1 TX line, but as I said, it makes hops from the Jetson to our main board and then out to the debug port board connectors. We are leaving CTS/RTS floating on our system. I got login prompts on the dev kit with flow control off. Could the CTS/RTS need to set before the login process with transmit the prompt? Thanks larry ---
**Author:** ![larry.ciummo](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@larry.ciummo](https://forums.developer.nvidia.com/u/larry.ciummo)\ **Post date:** [August 25, 2020, 3:04pm UTC](https://forums.developer.nvidia.com/t/agx-module-not-powering-up-in-oem-product/148136/6 "2020-08-25T15:04:37Z")
This got fixed this morning. The power control subsystem was bringing the Xavier out of reset before the Xavier’s power good signal was asserted. Thanks Larry ---
**Author:** ![TomNVIDIA](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/tomnvidia/32/14181_2.png) [@TomNVIDIA](https://forums.developer.nvidia.com/u/TomNVIDIA)\ **Post date:** [October 18, 2021, 6:21pm UTC](https://forums.developer.nvidia.com/t/agx-module-not-powering-up-in-oem-product/148136/8 "2021-10-18T18:21:48Z")