# \[Marlin] M504 - Validate EEPROM contents

{% hint style="success" %}
**📅Update: 2020/09/18**
{% endhint %}

## Description

Validate the contents of the EEPROM.

## Notes

* Requires `EEPROM_SETTINGS`.

## Usage

`M504`

## Examples

Validate EEPROM contents.

```
M504
```