> Source: [sk183950](https://support.checkpoint.com/results/sk/sk183950)

# sk183950 - Power Supply Status Shows as 'Empty' on Maestro-VSX Security Group Members

| Property | Value |
|----------|-------|
| Solution ID | sk183950 |
| Date Created | 2025-12-14 |
| Last Modified | 2025-12-16 |
| Technical Level | General |
| Products | Scalable Platforms |
| Versions | R81.20, R81.10 (EOS) |

## Symptoms

- * On Maestro-VSX Security Group Members (SGMs), the power supply status intermittently appears as **Empty** in the output of the `show sysenv ps` command, even though the power supply is working properly.   
  Example command output:

  ```
  Expert@SGM]# show sysenv ps
  Power Supply #1: Empty
  Power Supply #2: Empty
  ```

* The issue affects multiple Security Group Members and can affect one or both power supplies.
* After rebooting or reloading drivers, the status may temporarily appear as **Up** , but reverts to **Empty** later.
* Reloading the Power Management Bus (PMBus) driver or updating the monitoring RPM does not resolve the issue permanently.

## Cause

This behavior occurs due to a software problem in the power supply monitoring logic.

## Solution

1. [Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for this issue.  

   A Support Engineer will make sure the Hotfix is compatible with your environment before providing it.  
   For faster resolution and verification, collect these files:
   1. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Management Server involved in the case.
   2. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Security Gateway / each Cluster Member / Security Group involved in the case.

   **Hotfix installation instructions:**   
   Refer to [sk168597 - How to install a Hotfix](https://support.checkpoint.com/results/sk/sk168597).
2. A reboot may be required.   
   **Warning** : Rebooting will interrupt traffic; schedule downtime accordingly.  

3. Verify the Fix  

   On each Security Group Member, in Expert mode, run:  

   `show sysenv ps`  

   Confirm that the power supply status displays as **Up** for all installed power supplies.

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content