f7e75b1807
From the knowledge gained from ina tests and math, the pmic limits have been busted. Raising the limits to 1305 (max supported by dvfs tables) is quite reasonable. Up to 1420MHz gpu is theoretically below pmic limits even on terrible binning. CPU limits remaing unchanged due to voltage concerns.
⚠️ 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, PROINFO, EMUMMC and SD backup before proceeding.
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.
Default clocks
- CPU: Up to 1963MHz (Mariko) / 1785MHz (Erista)
- GPU: Up to 1075MHz (Mariko) / 921MHz (Erista)
- RAM: Up to 1866/2133MHz (Mariko) / 1600MHz (Erista)
- Over/undervolting support
- Built-in configurator
- Compatible with most homebrew
It is recommended to read the guide 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
Installation
-
Ensure you have the latest versions of
-
Download and extract the Horizon OC Package to the root of your SD card.
-
If using Hekate, edit
hekate_ipl.inito include:kip1=atmosphere/kips/hoc.kip secmon=atmosphere/exosphere.bin(No changes needed if using fusee.)
Configuration
- Open the Horizon OC Overlay
- Open the settings menu
- Adjust your overclocking settings as desired. A helpful guide can be found here.
- Click Save KIP Settings to apply your configuration.
Building from Source
Refer to COMPILATION.md
Clock table
MEM clocks (mhz)
- 3200 → max on mariko, JEDEC.
- 3166
- 3133
- 3100
- 3066
- 3033
- 3000
- 2966
- 2933 → JEDEC.
- 2900
- 2866
- 2833
- 2800
- 2766
- 2733
- 2700
- 2666 → JEDEC.
- 2633
- 2600
- 2566
- 2533
- 2500
- 2466
- 2433
- 2400 → max on erista, JEDEC.
- 2366
- 2333
- 2300
- 2266
- 2233
- 2200
- 2166
- 2133 → Mariko JEDEC standard max (4266 Modules)
- 2100
- 2066
- 2033
- 2000
- 1996 → JEDEC standard
- 1966
- 1933
- 1900
- 1866 → Mariko JEDEC standard max (3733 Modules)
- 1833
- 1800
- 1766
- 1733
- 1700
- 1666
- 1633
- 1600 → official docked, boost mode, Erista JEDEC standard max (3200 Modules), JEDEC.
- 1331 → official handheld, JEDEC.
- 1065
- 800
- 665
CPU clocks (mhz)
- 2703 → mariko absolute max, dangerous
- 2601 → unsafe
- 2499
- 2397 → mariko safe max with UV (low speedo)
- 2295
- 2193
- 2091
- 1963 → mariko no UV max clock
- 1887
- 1785 → erista no UV max clock, boost mode
- 1683
- 1581
- 1428
- 1326
- 1224 → sdev oc
- 1122
- 1020 → official docked & handheld
- 918
- 816
- 714
- 612 → sleep mode
GPU clocks (mhz)
- 1536 → absolute max clock on mariko. very dangerous
- 1459
- 1382
- 1305
- 1267 → NVIDIA T214(mariko) rating
- 1228 → mariko High UV safe clock
- 1152 → mariko hiOpt-15mV max clock
- 1075 → mariko hiOpt max clock. absolute max clock on erista. very dangerous
- 998 → NVIDIA T210 (erista) rating
- 960 (erista only) → erista high uv/hiOpt-15mV safe max clock
- 921 → erista no UV max clock
- 844
- 768 → official docked
- 691
- 614
- 537
- 460 → max handheld
- 384 → official handheld
- 307 → official handheld
- 230
- 153
- 76 → boost mode
Notes:
- On Erista, CPU in handheld is capped to 1581MHz
- GPU overclock is capped at 460MHz on erista in handheld
- On Mariko, cap with hiOpt is 614MHz, with hiOpt-15mV it is 691MHz and with High UV it's 768MHz
- Clocks higher than 768MHz on erista need the official charger is plugged in.
Credits
- Lightos's Cat - Cat
- Souldbminer - hoc-clk and loader development
- Lightos - Loader patches development, hoc-clk development, guides
- TDRR - HOC Logo Design
- tetetete-ctrl - Website design
- SciresM - Atmosphere CFW
- CTCaer - L4T, Hekate, proper RAM timings
- KazushiMe - Switch OC Suite
- Hanai3bi (Meha) - Switch OC Suite, EOS, sys-clk-eos
- NaGaa95 - L4T-OC kernel, Status Monitor fork
- B3711 (halop) - EOS, contributions
- sys-clk team (m4xw, p-sam, natinusala) - sys-clk
- Dominatorul - Soctherm driver, guides, general help
- ppkantorski - Ultrahand sys-clk & Status Monitor fork
- MasaGratoR and ZachyCatGames - General help
- MasaGratoR - Status Monitor & Display Refresh Rate driver
- Dominatorul, Samybigio, Arcdelta, Miki, Happy, Winnerboi77, Blaise, Alvise, agjeococh, frost, letum00, and Xenshen - Testing
- Samybigio2011, Miki - Italian translations
- angelblaster - Korean translations
- q1332348216-glitch - Chinese translations
- th3-ne0undr5c0r - French translations
- Nvidia - Tegra X1 Technical Reference Manual, soctherm driver, L4T