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[](https://dsc.gg/horizonoc)
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## ⚠️ Disclaimer
> **THIS TOOL CAN BE DANGEROUS IF MISUSED. PROCEED WITH CAUTION.**
> Due to the design of Horizon OS, **overclocking RAM can cause NAND OR SD CORRUPTION.**
> Ensure you have a **full NAND, PRODINFO, EMUMMC and SD backup** before proceeding.
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## About
**Horizon OC** is an open-source overclocking tool for Nintendo Switch consoles running **Atmosphere custom firmware**.
It enables advanced CPU, GPU, and RAM tuning with user-friendly configuration tools.
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## Default clocks
* **CPU:** Up to 1963MHz (Mariko) / 1785MHz (Erista)
* **GPU:** Up to 1152MHz (Mariko) / 921MHz (Erista)
* **RAM:** Up to 2133MHz (Mariko) / 1600MHz (Erista)
* Over/undervolting support
* Built-in configurator
* Compatible with most homebrew
> It is recommended to read the [guide](https://rentry.co/howtoget60fps) before proceeding, as this can help you get a *significant* performance boost over the default settings, often times with less power draw and heat output
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## Installation
1. Ensure you have the latest versions of
* [Atmosphere](https://github.com/Atmosphere-NX/Atmosphere)
* [Ultrahand Overlay](https://github.com/ppkantorski/Ultrahand-Overlay)
2. Download and extract the **Horizon OC Package** to the root of your SD card.
3. If using **Hekate**, edit `hekate_ipl.ini` to include:
```
kip1=atmosphere/kips/hoc.kip
secmon=atmosphere/exosphere.bin
```
*(No changes needed if using fusee.)*
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## Configuration
1. Open the Horizon OC Overlay
2. Open the settings menu
3. Adjust your overclocking settings as desired. A helpful guide can be found [here.](https://rentry.co/mariko#oc-settings-for-horizon-oc)
4. Click **Save KIP Settings** to apply your configuration.
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## Donating
We don't accept donations. Put your spare cash into a charity instead :)
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## Building from Source
Refer to COMPILATION.md
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