# Switch OC Suite

Overclocking suite for Switch **(Mariko Only)** running on Atmosphere CFW. Support Horizon OS 11.0.0-13.2.0.



## Disclaimer

### USE AT YOUR OWN RISK!

**I AM NOT RESPONSIBLE FOR ANYTHING BAD THAT MIGHT HAPPEN TO YOUR CONSOLE** (bans, internal component failure, etc.) by installing OC Suite or tinkering software/hardware with any info from this repo.



## Features

- **CPU/GPU/RAM Overclock** up to **2397.0/1497.6/2131.2 MHz**
- **Fan Control Optimization** at high load
- **Modded sys-clk and ReverseNX**(-Tools and -RT)
  - **No need to change clocks manually** after toggling modes in ReverseNX
  - Auto-Boost CPU for faster game loading
  - Profile-aware clock override for all games
- System Settings
  - Disable background services, less heat and power consumption in standby mode
  - Game recording and SysDVR streaming @ 60fps with high video bitrate
  - Option to change the threshold for chargers providing enough power
- **TinyMemBenchNX**: DRAM throughput and latency test based on [tinymembench](https://github.com/ssvb/tinymembench)
- MemTesterNX: A userspace utility for testing DRAM faults based on [memtester](https://pyropus.ca/software/memtester/)
  - For testing stability, GPU/DRAM-heavy games like BotW/MHR will do better jobs as it's easier to spot framebuffer corruption/freeze

#### Details

- **Overclock**

  - **Official X1+ CPU/GPU Max clock: 1963.5/1267.2 MHz**.
    - Anything above that are not in the table of official module. ([issue #4](https://github.com/KazushiMe/Switch-OC-Suite/issues/4))

  - **Recommended RAM clock: 1862.4 MHz** @ 600mV, (**1795.2 MHz for Hynix** ones @ 600mV).
    - Only 1331.2 MHz and Max MHz are available in sys-clk-OC settings.
    - Use Hekate to check out the brand and of your RAM chips.
    - EM shielding & thermal paste for RAM chips and testing with emuNAND before long-term usage.

  - For more info on available clock rates, see [README.md](https://github.com/KazushiMe/Switch-OC-Suite/tree/master/Source/sys-clk-OC) in sys-clk-OC.

- **Overvolt and Extreme Overclock**

  - CPU overvolting: 1220 mV, up from default 1120 mV. Frequencies ≥ 2193 MHz will enable overvolting.

  - GPU overvolting: 1170 mV, default 1050 mV. Frequencies ≥ 1420 Mhz trigger overvolting. ([issue #4](https://github.com/KazushiMe/Switch-OC-Suite/issues/4))
    - You cannot set ≥ 1344 MHz without official chargers.

  - RAM
    - Overvolting: precompiled hekate bootloader is provided
      - Edit `oc.ini` to change Vddq voltage value:
      ```ini
      [emc]
      volt=600000
      ```
      - Overvolting beyond 650mV is not safe and proved to be not much helpful.
    - Timings: [EXPERIMENTAL] source codes, definitions and examples are provided.
  - See [issue #5](https://github.com/KazushiMe/Switch-OC-Suite/issues/5) for more info on DRAM OC and timings

- **Fan Control Optimization** at high load
  - Higher tolerable temperature and smoother fan curve. Set `holdable_tskin` to 56˚C. Previously it's set to 48˚C, so by default the fan would go crazy (80~100%) easily with a slight degree of OC.
  - Replace crappy factory thermal paste is preferred.
  - Place a thermal pad onto Wi-Fi/BT module (shielded, adjacent to antennas) to lower tskin temperature.

- **Modded sys-clk and ReverseNX**(-Tools and -RT)
  - **No need to change clocks manually** after toggling modes in ReverseNX
    - Add `/config/sys-clk/downclock_dock.flag` to use handheld clocks in Docked mode when Handheld mode is set in ReverseNX.
    - To **disable this feature**, use original version of ReverseNX-RT and delete `/config/sys-clk/ReverseNX_sync.flag`.
  - **Auto-Boost CPU for faster game loading**
    - When a game launches or is in loading screen, sys-clk will boost CPU to 1963.5 MHz for ~10 seconds or until the loading screen ends.
    - Some games don't utilize `SetCpuBoostMode` at all, e.g. Overcooked 2, so Auto-Boost will be unavailable to these games.
    - To **disable this feature**, simply remove `boost_start.flag` and `boost.flag` in `/config/sys-clk/ `.
  - Profile-aware clock override for all games
    - Add `[A111111111111111]` title config in `/config/sys-clk/config.ini` to set frequency override globally:
      ```ini
      [A111111111111111]
      docked_cpu=
      docked_gpu=
      handheld_charging_cpu=
      handheld_charging_gpu=
      handheld_charging_usb_cpu=
      handheld_charging_usb_gpu=
      handheld_charging_official_cpu=
      handheld_charging_official_gpu=
      handheld_cpu=
      handheld_gpu=
      ```

- Disable background services, less heat and power consumption in standby mode
  - **Remove** the "Disable Background service" part in `/atmosphere/config/system_settings.ini` if you **use Nintendo Online services**.

- Game recording and SysDVR streaming @ 60fps with high video bitrate (7.5Mbps)
  - (Recommended)[dvr-patches](https://github.com/exelix11/dvr-patches): Allow screenshot/recording in any games and remove overlay image (copyright notice or logo).
  - For optimal streaming experience, SysDVR via USB interface is recommended.
  - Known Issues (won't fix)
    - Game recordings may be less than 30 seconds if higher bitrate is used.
    - It has noticeable performance impacts in demanding games.
    - Video duration shown in album will be twice than the actual value, while the playback speed is not affected.
  - To **disable** this feature, simply remove the `[am.debug]` section in `system_settings.ini`.

- Option to change the threshold for chargers providing enough power
    - Find the string `enough_power_threshold_mw` in `system_settings.ini`. The default value is `0x9858` (39,000 mW).
    - To lower the threshold, you may change the value to `0x4268` (17,000 mW). Now the system and "sys-clk" will see typical Power Delivery chargers that only supply up to 18W (9V/2A) as "Official Chargers".



## Installation

- Modded `loader.kip` with embedded pcv, ptm, am-no-copyright, ValidateAcidSignature patches
- Prebuilt sys-clk-OC and ReverseNX-RT modified for OC
- Hekate with DRAM overvolting patch
- `system-settings.ini` with some QoL improvements

1. **Restoring pcv backup if you have patched pcv module manually:** Launch the `patcher.te` script via TegraExplorer to restore your backup. Separated **ptm patches should be removed** to avoid conflicts.

2. Copy all the files in `SdOut` to the root of SD card. `system_settings.ini` should be edited manually.

3. Grab `x.x.x_loader_xxxx.x.kip` for your Atmosphere version and desired RAM frequency (according to DRAM manufacturer), rename it to `loader.kip` and place it in `/atmosphere/kips/`.

4. **Hekate-ipl bootloader:**

   - Rename the kip to `loader.kip` and add `kip1=atmosphere/kips/loader.kip` in `bootloader/hekate_ipl.ini`
   - Set DRAM voltage in `/oc.ini`

   **Atmosphere Fusee bootloader:**

   - Fusee will load any kips in `/atmosphere/kips/` automatically.



## Build

Grab necessary patches from the repo, then compile sys-clk, ReverseNX-RT, hekate and Atmosphere (or loader only) with devkitpro.



## Acknowledgement

- CTCaer for [Hekate-ipl](https://github.com/CTCaer/hekate) bootloader, RE and hardware research
- [devkitPro](https://devkitpro.org/) for All-In-One homebrew toolchains
- masagrator for [ReverseNX-RT](https://github.com/masagrator/ReverseNX-RT) and [BatteryChargeInfoNX](https://github.com/masagrator/BatteryChargeInfoNX)
- RetroNX team for [sys-clk](https://github.com/retronx-team/sys-clk)
- SciresM and Reswitched Team for the state-of-the-art [Atmosphere](https://github.com/Atmosphere-NX/Atmosphere) CFW of Switch
- Switchbrew [wiki](http://switchbrew.org/wiki/) for Switch in-depth info
- ZatchyCatGames for RE and original OC loader patches for Atmosphere