diff --git a/docs/build.md b/docs/build.md
index 08a8f33336..7286ec58de 100644
--- a/docs/build.md
+++ b/docs/build.md
@@ -351,7 +351,7 @@ cmake --build build --config Release
 
 #### Override Compute Capability Specifications
 
-By default, all supported compute capabilities are enabled. To customize this behavior, you can specify the `MUSA_ARCHITECTURES` option in the CMake command:
+By default, compute capabilities `2.2` (MTT S4000) and `3.1` (MTT S5000) are enabled, compute capability `2.1` (MTT S70, MTT S80, MTT S3000) is deprecated and has to be enabled explicitly. To customize this behavior, you can specify the `MUSA_ARCHITECTURES` option in the CMake command:
 
 ```bash
 cmake -B build -DGGML_MUSA=ON -DMUSA_ARCHITECTURES="31"
diff --git a/ggml/src/ggml-musa/CMakeLists.txt b/ggml/src/ggml-musa/CMakeLists.txt
index 82b754f41e..721621a1d8 100644
--- a/ggml/src/ggml-musa/CMakeLists.txt
+++ b/ggml/src/ggml-musa/CMakeLists.txt
@@ -21,7 +21,10 @@ if (MUSAToolkit_FOUND)
     message(STATUS "MUSA Toolkit found")
 
     if (NOT DEFINED MUSA_ARCHITECTURES)
-        set(MUSA_ARCHITECTURES "21;22;31")
+        set(MUSA_ARCHITECTURES "22;31")
+    endif()
+    if ("21" IN_LIST MUSA_ARCHITECTURES)
+        message(WARNING "MUSA architecture 21 (MTT S70, MTT S80, MTT S3000) is deprecated and no longer tested")
     endif()
     message(STATUS "Using MUSA architectures: ${MUSA_ARCHITECTURES}")