clean up README
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KazushiM
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README.md
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README.md
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Overclocking suite for Horizon OS (HOS) running on Atmosphere CFW.
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This project will not be actively maintained or regularly updated along with Atmosphere CFW.
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## DISCLAIMER: USE AT YOUR OWN RISK!
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- Overclocking in general (often combined with overvolting and overheating) will _degrade internal components_ - SoC, VRM(Voltage Regulator Module), Battery, etc. - _faster_ than you and the manufacturer have expected.
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- Overclocking in general will shorten the lifespan of some hardware components.
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- Due to HorizonOS design, instabilities from unsafe RAM clocks may cause filesystem corruption. **Always make backup before usage.**
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- Higher RAM clocks without proper timings could be UNSTABLE and cause graphical glitches / instabilities / filesystem corruption. **Always make backup before usage.**
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## Features
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- **DRAM Overclock**
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- Erista variant (HAC-001)
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- DRAM Overclock
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- Safe: 1862.4 MHz
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- Unsafe:
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- DRAM bus overvolting
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- Most games are **bottlenecked by RAM bandwidth**
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- Modded sys-clk and ReverseNX-RT
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- CPU & GPU frequency governor (Experimental)
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- Fast-charging (2A) toggle, set charge limit (20% - 100%)
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- Global Profile
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- Sync ReverseNX Mode
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- Mariko variant (HAC-001-01, HDH-001, HEG-001)
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- CPU / GPU Overclock
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- Safe: 1963 / 921 MHz
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- Unsafe:
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- Enable "Allow Unsafe Frequencies" in overlay to unlock frequencies up to 2397 / 1305 MHz
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- See [README for sys-clk-OC](https://github.com/KazushiMe/Switch-OC-Suite/blob/master/Source/sys-clk-OC/README.md)
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- Safe:
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- Mariko: 1996.8 MHz has been tested stable for all (Samsung / Micron / Hynix), with built-in timing auto-adjustment.
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- Erista: 1862.4 MHz.
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- DRAM Overclock
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- Safe: 1996.8 MHz with built-in timing adjustment
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- Unsafe:
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- [DRAM bus overvolting](https://gist.github.com/KazushiMe/6bb0fcbefe0e03b1274079522516d56d).
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- Unsafe: higher than 1996.8 MHz or overvolting
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<details>
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- Modded sys-clk and ReverseNX-RT
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- Auto CPU Boost
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- CPU & GPU frequency governor (Experimental)
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- Fast-charging (2A) toggle, set charge limit (20% - 100%)
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- Global Profile
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- Sync ReverseNX Mode
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- Timing:
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- Timing parameters could be auto-adjusted (default) or overwritten with user-provided mtc table.
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- Customization: No GUI tool, requires [rebuilding](#Build).
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- Auto CPU Boost
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- For faster game loading
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- Enable CPU Boost (1785 MHz) when CPU Core#3 (System Core) is stressed (mainly I/O operations).
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- Effective only when charger is connected.
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- DRAM bus overvolting (Erista Only).
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- Mariko: [use this to set DRAM bus voltage](https://gist.github.com/KazushiMe/6bb0fcbefe0e03b1274079522516d56d).
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- CPU & GPU frequency governor (Experimental)
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- Adjust frequency based on load. Might decrease power draw but can introduce stutters. Can be turned off for specific titles.
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</details>
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- Fast-charging (2A) toggle, set charge limit (20% - 100%)
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- Long-term use of charge limit may render the battery gauge inaccurate. Performing full cycles could help recalibration, or try [battery_desync_fix_nx](https://github.com/CTCaer/battery_desync_fix_nx).
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- **Modded sys-clk and ReverseNX**(-RT)
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- Global profile
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- Designated a dummy title id `0xA111111111111111`.
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- Priority: "Temp overrides" > "Application profile" > "Global profile" > "System default".
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- CPU & GPU frequency governor (Experimental)
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- Adjust frequency based on load. Might decrease power draw but can introduce stutters.
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- Global profile
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- Designated a dummy title id `0xA111111111111111`.
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- Priority: "Temp overrides" > "Application profile" > "Global profile" > "System default".
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- Miscellaneous
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- Sync ReverseNX Mode: No need to change clocks manually after toggling modes in ReverseNX
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- Sync ReverseNX Mode
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- No need to change clocks manually after toggling modes in ReverseNX (-RT and -Tool)
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- **[System Settings (Optional)](https://github.com/KazushiMe/Switch-OC-Suite/blob/master/system_settings.md)**
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### Mariko Only
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- **CPU/GPU Overclock**
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- Safe: CPU/GPU @ 1963/921 MHz
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- Unsafe: **NOT RECOMMENDED**
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- **Disabled by default**, toggle "Allow Unsafe Frequencies" on in overlay or add `allow_unsafe_freq=1` to `config.ini`
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- Power draw will be significant higher than what the mainboard was designed to tolerate at anything higher than 1963/921 MHz.
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- See [README for sys-clk-OC](https://github.com/KazushiMe/Switch-OC-Suite/blob/master/Source/sys-clk-OC/README.md)
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- Auto CPU Boost: For faster game loading
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- Enable CPU Boost (1785 MHz, could be configured higher) when CPU Core#3 (System Core) is stressed, especially when the game is loading assets from eMMC/SD card (I/O ops).
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- Auto-Boost will be enabled only when charger is connected.
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- View charger & battery info, toggle fast-charging(2A) or set charge limit (20% - 100%) in overlay
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- Note: Long-term use of charge limit may render the battery gauge inaccurate. Performing full cycles could help recalibration, or try [battery_desync_fix_nx](https://github.com/CTCaer/battery_desync_fix_nx).
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## Installation
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1. Download latest [release](https://github.com/KazushiMe/Switch-OC-Suite/releases/latest).
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@@ -78,7 +74,7 @@ This project will not be actively maintained or regularly updated along with Atm
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3. Grab `x.x.x_loader.kip` for your Atmosphere version, rename it to `loader.kip` and place it in `/atmosphere/kips/`.
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4. Customization
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4. Customization via [online loader configurator](https://kazushime.github.io/Switch-OC-Suite/):
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<details>
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| Defaults | Mariko | Erista |
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@@ -93,24 +89,14 @@ This project will not be actively maintained or regularly updated along with Atm
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</details>
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- [Online loader configurator](https://kazushime.github.io/Switch-OC-Suite/)
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- Tested with latest Chrome(107) and Safari (16) (as of November 2022), older browsers may not work properly.
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5. **Hekate-ipl bootloader**
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- Rename the kip to `loader.kip` and add `kip1=atmosphere/kips/loader.kip` in `bootloader/hekate_ipl.ini`
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- Erista: Minerva module conflicts with HOS DRAM training. Recompile with frequency changed is recommeded, although you could simply remove `bootloader/sys/libsys_minerva.bso`.
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**Atmosphere Fusee bootloader:**
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- Fusee will load any kips in `/atmosphere/kips/` automatically.
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### Patching sysmodules manually
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This method is only served as reference as it could damage your MMC file system if not handled properly.
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Patched sysmodules would be persistent until pcv or ptm was updated in new HOS (normally in `x.0.0`).
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5. Hekate-ipl bootloader Only
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- Add `kip1=atmosphere/kips/loader.kip` to boot entry section in `bootloader/hekate_ipl.ini`.
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<details>
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<summary>Deprecated: patching sysmodules manually</summary>
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This method is only served as reference as it could damage your MMC file system if not handled properly.
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Patched sysmodules would be persistent until pcv or ptm was updated in new HOS (normally in `x.0.0`).
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Tools:
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- Lockpick_RCM
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@@ -125,21 +111,18 @@ Patched sysmodules would be persistent until pcv or ptm was updated in new HOS (
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3. Configure and run `test_patch.sh` to generate patched pcv & ptm sysmodules in nca
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4. Replace nca in `SYSTEM:/Contents/registered/` with TegraExplorer
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5. `ValidateAcidSignature()` should be stubbed to allow unsigned sysmodules to load (a.k.a. `loader_patch`)
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</details>
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## Build
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### Loader KIP
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<details>
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Grab necessary patches from the repo, then compile sys-clk, ReverseNX-RT and Atmosphere loader with devkitpro.
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If you are to install nro forwarders, stub `ValidateAcidSignature()` with `R_SUCCEED();` in `Atmosphere/stratosphere/loader/source/ldr_meta.cpp` to make them work again.
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Uncompress the kip to make it work with config editor: `hactool -t kip1 Atmosphere/stratosphere/loader/out/nintendo_nx_arm64_armv8a/release/loader.kip --uncompress=./loader.kip`
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Uncompress the kip to make it work with configurator: `hactool -t kip1 Atmosphere/stratosphere/loader/out/nintendo_nx_arm64_armv8a/release/loader.kip --uncompress=./loader.kip`
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</details>
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## Acknowledgement
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