Troubleshooting Supermicro HGX BMC to Inband Communication Issues
Issue Description
The Supermicro HGX system’s BMC is not communicating with the host OS over the Inband channel. This prevents access to BMC functionalities such as sensor readings, firmware updates, and IPMI commands from the operating system.
Troubleshooting Steps
1. Cold reset using IPMICFG tool
IPMICFG is an In-band utility for configuring IPMI devices. It is a command line tool providing standard IPMI and Supermicro® proprietary OEM commands for BMC/FRU configuration.
- Download IPMICFG tool from https://www.supermicro.com/en/support/resources/downloadcenter/smsdownload
- Run the following commands
- ./IPMICFG-Linux.x86_64 -fd 2
- ./IPMICFG-Linux.x86_64 -m
- ./IPMICFG-Linux.x86_64 -fd
- ./IPMICFG-Linux.x86_64 -fdl
- ./IPMICFG-Linux.x86_64 -fde
- ./ipmitool bmc reset cold
- ./IPMICFG-Linux.x86_64 -dhcp off
- ./IPMICFG-Linux.x86_64 -m (IP Address)
- ./IPMICFG-Linux.x86_64 -k (subnet mask)
- ./IPMICFG-Linux.x86_64 -g (gateway)
- ./ipmitool bmc reset cold
2. Update BMC Firmware
- Download the Firmware from Supermicro portal (https://www.supermicro.com/en/products/system/gpu/8u/as-8125gs-tnhr)
- Login to the BMC Web UI (navigate to http://<BMC_IP_ADDRESS>)
- Go to Maintenance → Firmware Update.
- Select the .bin file and upload
- After uploading, click on Update
Related Articles
KB 829939 - Execution of NVIDIA Field Diagnostic (FD) Tool and Collection of Diagnostic Logs, and troubleshooting of GPU(s) not detected
1. Objective To provide a standardized procedure for executing the NVIDIA Field Diagnostic (FD) tool, verifying GPU status, collecting the required diagnostic logs, and documenting the findings for further analysis. 2. Scope This procedure applies to ...What is BMC and How to generate BMC Logs
BMC (Baseboard Management Controller) The Baseboard Management Controller (BMC) is a specialized microcontroller embedded on a server’s motherboard that enables remote management and monitoring of the server's hardware, even when the server is ...KB 394836 - IPMI User Management (Reset, Create, Delete, Privileges) Using ipmitool on Ubuntu
1. Prerequisites Ubuntu system with sudo access and ipmitool installed Local BMC access (/dev/ipmi0) or remote BMC IP Maintenance window recommended Confirm correct User ID before modifying 2. Install and Validate ipmitool 2.1 Install bash sudo apt ...KB 561434 - Configure Date & Time on ASUS HGX Servers via ASMB11-iKVM (BMC)
Purpose This article explains how to configure and synchronize the Date & Time on ASUS HGX servers using the ASMB11‑iKVM (BMC) interface. This ensures that all HGX servers synchronize their time with the NTP servers configured on Head Node 1 and Head ...KB 471633 - ASUS BMC- Static IP Network Setup
ASUS BMC—Static IP Network Setup Connect Network Cable Connect a network cable to the MGMT (Management) port. If the network has DHCP enabled, the server will automatically obtain an IP address. If DHCP is not enabled, follow the manual configuration ...
Recent Articles
KB-630208 | How to use Find and Locate to search for files in Linux
Purpose To provide Linux administrators and Field Engineers with guidance on using the find and locate utilities to efficiently search for files and directories within a Linux filesystem based on criteria such as name, type, size, timestamps, ...KB-630164 | How to use rsync to Synchronize Files
Purpose To provide a clear and practical procedure for using the rsync utility to synchronize files and directories between local systems and remote hosts, including push and pull operations, while preserving file attributes and optimizing data ...KB-630107 | How to create a Linux swap file
Purpose To provide Field Engineers and Linux administrators with a standardized procedure for creating, configuring, and validating a Linux swap file. This procedure helps ensure sufficient virtual memory is available when physical RAM is exhausted ...MSI All-in-One (AIO) PC – Physical Damage Policy for Warranty Claims
MSI All-in-One (AIO) PC – Physical Damage Policy for Warranty Claims MSI's standard warranty does not cover physical or accidental damage to an All-in-One (AIO) PC. If the damage is determined to be caused by external factors rather than a ...KB 134833 - Troubleshooting NVSM Alert NV-CPU-XX – Unrecoverable CPU Internal Error
Purpose This document provides a general troubleshooting procedure for the NVIDIA System Management (NVSM) alert NV-CPU-XX, which indicates that a CPU has reported an internal error. The article outlines how to verify whether the alert represents an ...
Popular Articles
CP Plus Camera and NVR Configuration
NVR Configuration The CP Plus Pro Series of NVRs have been meticulously designed for providing you with upgraded performance and higher recording quality in your IP video surveillance solution. The robust processor that has been inculcated in this ...KB 775235 - Kerberos Authentication – Overview
What is Kerberos? Kerberos is a secure authentication method used in our Active Directory (AD) environment (mbuzztech.com). It allows users to: Access multiple systems without re-entering passwords (Single Sign-On – SSO) Log in once Where We Use It ...How to Remove and Reinstall NVIDIA Drivers on Ubuntu
This article provides step by step guide to completely remove existing NVIDIA drivers and reinstall specific version of the NVIDIA driver on the Ubuntu system Prerequisites Administrative (sudo) access to the Ubuntu system. Internet access to ...KB 692001 - Personal Computers and Servers - Classification and Point of Contact
We can classify the computers that MBUZZ handles based on their form-factor as below: Tower Workstations, Desktops, Gaming PCs and SFF (Small form factor) PCs fall under this category. These are computers people would use on a desk and rarely move. ...KB 298031 - M.2 SSD Tier List
The sequential read and write speeds, which are usually the most advertised number, are not a proper benchmark of real-world performance or the quality of an SSD. This article categorizes and tiers SSDs based on factors like the type of NAND flash, ...