> For the complete documentation index, see [llms.txt](https://commanderhelp.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://commanderhelp.verifone.com/general-help-guides/general-help/how-to-check-for-power/topaz.md).

# Topaz

#### Use this when the Topaz screen is black or the POS looks off.

Topaz power checks are similar to Ruby 2 and RubyCI.

*Do not disconnect the power cord from the back of the POS.*

<details>

<summary>Keywords</summary>

**Also called:** Topaz no power, Topaz off, Topaz black screen, Topaz not turning on, Topaz dead

**Keywords:** Topaz power check, check power on Topaz, Topaz power brick, Topaz wall outlet, Topaz UPS, Topaz power path, Topaz power cord

</details>

### How to check power on Topaz

{% stepper %}
{% step %}

#### Check the power path

Trace the Topaz power cord to the power brick.

If there is no power, continue tracing it to the wall outlet or UPS.

Make sure each connection is fully seated.
{% endstep %}

{% step %}

#### Power cycle from the brick or outlet

If you need to power cycle the Topaz, disconnect power at the brick or wall outlet.

Do not disconnect it from the back of the POS.

![](/files/8f22a4fe2e56ed18ac3db0c12e5a172661625bd4)

![](/files/16c4adc6977792da7f889cb1b3de5b7313a8cdcd)
{% endstep %}
{% endstepper %}

{% hint style="warning" %}
Do not remove the power cord from the back of the Topaz. The connector pins can bend.
{% endhint %}

### Related power checks

* [Check power on Ruby 2 and RubyCI](/general-help-guides/general-help/how-to-check-for-power/ruby-2-and-rubyci.md)
* [Check power on the UPS / Battery Backup](/general-help-guides/general-help/how-to-check-for-power/ups-battery-backup.md)
* [How to check for power](/general-help-guides/general-help/how-to-check-for-power.md)


---

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