diff --git a/tests/integration/defs/test_e2e.py b/tests/integration/defs/test_e2e.py
index ad4f3e6a621..fbbfc4ceb22 100644
--- a/tests/integration/defs/test_e2e.py
+++ b/tests/integration/defs/test_e2e.py
@@ -31,10 +31,10 @@
 from .common import (PluginOptions, convert_weights, get_mmlu_accuracy,
                      prune_checkpoint, quantize_data, refit_model,
                      venv_check_call)
-from .conftest import (get_device_count, llm_models_root, skip_no_sm120,
-                       skip_nvlink_inactive, skip_post_blackwell, skip_pre_ada,
-                       skip_pre_blackwell, skip_pre_hopper, tests_path,
-                       unittest_path)
+from .conftest import (get_device_count, get_sm_version, llm_models_root,
+                       skip_no_sm120, skip_nvlink_inactive, skip_post_blackwell,
+                       skip_pre_ada, skip_pre_blackwell, skip_pre_hopper,
+                       tests_path, unittest_path)
 
 sys.path.append(os.path.join(str(tests_path()), '/../examples/apps'))
 
@@ -2184,7 +2184,6 @@ def test_ptp_quickstart_advanced_deepseek_r1_8gpus(llm_root, llm_venv,
         _check_mem_usage(running_log, [106.3, 0, 0, 0], 8)
 
 
-@skip_post_blackwell
 @pytest.mark.skip_less_device_memory(110000)
 @pytest.mark.skip_less_device(8)
 @pytest.mark.parametrize("model_name,model_path", [
@@ -2195,6 +2194,7 @@ def test_relaxed_acceptance_quickstart_advanced_deepseek_r1_8gpus(
         llm_root, llm_venv, model_name, model_path):
     print(f"Testing {model_name}.")
     example_root = Path(os.path.join(llm_root, "examples", "llm-api"))
+    is_blackwell = get_sm_version() > 90
     with tempfile.NamedTemporaryFile(mode='w+t',
                                      suffix=f".{model_name}.log",
                                      dir="./",
@@ -2208,7 +2208,7 @@ def test_relaxed_acceptance_quickstart_advanced_deepseek_r1_8gpus(
             "--moe_ep_size=8",
             "--tp_size=8",
             "--use_cuda_graph",
-            f"--kv_cache_fraction={_MEM_FRACTION_95}",
+            f"--kv_cache_fraction={_MEM_FRACTION_50 if is_blackwell else _MEM_FRACTION_95}",
             "--max_batch_size=1",
             "--max_seq_len=3000",
             "--disable_kv_cache_reuse",
@@ -2221,6 +2221,8 @@ def test_relaxed_acceptance_quickstart_advanced_deepseek_r1_8gpus(
             "--relaxed_delta=0.5",
             "--enable_attention_dp",
             "--use_one_model",
+            "--moe_backend",
+            "DEEPGEMM" if is_blackwell else "CUTLASS",
         ],
                          stdout=running_log)
         _check_mem_usage(running_log, [85.6, 0, 0, 0], 8)