diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -853,26 +853,6 @@
                         "-DCMAKE_C_COMPILER:FILEPATH=/local/clang+llvm-12.0.0-x86_64-linux-gnu-ubuntu-16.04/bin/clang",
                         "-DCMAKE_CXX_COMPILER:FILEPATH=/local/clang+llvm-12.0.0-x86_64-linux-gnu-ubuntu-16.04/bin/clang++"])},
 
-    ## X86_64 AVX2 Clang+LLVM check-all + test-suite
-    {'name' : "clang-cmake-x86_64-avx2-linux",
-    'tags'  : ["clang"],
-    'workernames' : ["sde-avx512-intel64"],
-    'builddir': "clang-cmake-x86_64-avx2-linux",
-    'factory' : ClangBuilder.getClangCMakeBuildFactory(
-                    clean=False,
-                    checkout_clang_tools_extra=False,
-                    checkout_compiler_rt=False,
-                    checkout_lld=False,
-                    useTwoStage=False,
-                    runTestSuite=True,
-                    testsuite_flags=['--cflag', '-march=cascadelake', '--threads=32', '--build-threads=32'],
-                    env={'PATH':'/usr/bin/ccache:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'},
-                    extra_cmake_args=[
-                        "-DLLVM_ENABLE_ASSERTIONS=ON",
-                        "-DCMAKE_C_FLAGS='-march=cascadelake'",
-                        "-DCMAKE_CXX_FLAGS='-march=cascadelake'",
-                        "-DLLVM_TARGETS_TO_BUILD='X86'"])},
-
     ## X86_64 AVX2 LNT test-suite in Benchmark mode
     {'name' : "clang-cmake-x86_64-avx2-linux-perf",
     'tags'  : ["clang"],
diff --git a/buildbot/osuosl/master/config/workers.py b/buildbot/osuosl/master/config/workers.py
--- a/buildbot/osuosl/master/config/workers.py
+++ b/buildbot/osuosl/master/config/workers.py
@@ -162,9 +162,6 @@
         # X86_64 AVX2, Ubuntu 16.04.2, Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz
         create_worker("avx2-intel64", properties={'jobs': 80}, max_builds=1),
 
-        # X86_64 with SDE, Ubuntu 16.04.2, Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz
-        create_worker("sde-avx512-intel64", properties={'jobs': 80}, max_builds=1),
-
         # Debian 9.0 x86_64 64-core GCE instances
         create_worker("fuchsia-debian-64-us-central1-a-1", properties={'jobs': 64}, max_builds=1),
         create_worker("fuchsia-debian-64-us-central1-b-1", properties={'jobs': 64}, max_builds=1),