> Source: [sk105745](https://support.checkpoint.com/results/sk/sk105745)

# sk105745 - "SA not found" error when FDE is loading on Dell Latitude **50 / **70 series 

| Property | Value |
|----------|-------|
| Solution ID | sk105745 |
| Date Created | 2015-04-17 |
| Last Modified | 2017-07-19 |
| Technical Level | General |
| Products | Endpoint Security |
| Versions | Cloud, E89.X, E88.X |
| OS | Windows |

## Symptoms

- * "`SA not found`" error message is shown on Dell Latitude \*\*50 / \*\*70 series when FDE is loading and SATA mode is set to "RAID":  
  ![](https://sc1.checkpoint.com/sc/SolutionsStatics/sk105745/Error1504200425.png)
* A Green Screen Of Death (GSOD) appears if AHCI mode is enabled in BIOS.

## Cause

Possible causes:

* AHCI mode is enabled in the BIOS.

* Dell BIOS problem.

  Known affected models (other models might be affected as well):
  * Dell Latitude 3450
  * Dell Latitude 3550
  * Dell Latitude 5250
  * Dell Latitude 5450
  * Dell Latitude 5550
  * Dell Latitude 7250
  * Dell Latitude 7350
  * Dell Latitude 7450

  **Important: See [Third-Party Software Disclaimer](https://www.checkpoint.com/third-party-software-disclaimer/index.html)**

## Solution

Follow these steps:

1. Disable the AHCI mode in the BIOS.
2. Upgrade the BIOS version to the latest version. If needed, contact [Dell Support](http://support.dell.com/).

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