diff --git a/.github/workflows/pr-test-amd.yml b/.github/workflows/pr-test-amd.yml
index 8738ce48d..719fb4bbb 100644
--- a/.github/workflows/pr-test-amd.yml
+++ b/.github/workflows/pr-test-amd.yml
@@ -63,7 +63,7 @@ on:
         description: 'AMD runner pool to dispatch GPU jobs to'
         required: false
         type: choice
-        default: mi300
+        default: mi325
         options:
           - mi300
           - mi325
@@ -180,7 +180,7 @@ jobs:
 
   # =============================================== sgl-kernel ====================================================
   sgl-kernel-unit-test-amd:
-    name: ${{ format('sgl-kernel-unit-test-amd (linux-{0}-1gpu-sglang)', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    name: ${{ format('sgl-kernel-unit-test-amd (linux-{0}-1gpu-sglang)', inputs.runner_arch || 'mi325') }}
     needs: [check-changes, call-gate]
     if: |
       always() && !cancelled() &&
@@ -192,7 +192,7 @@ jobs:
           needs.check-changes.outputs.sgl_kernel == 'true'
         )
       )
-    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || 'mi325') }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -238,7 +238,7 @@ jobs:
           exit $failures
 
   sgl-kernel-unit-test-2-gpu-amd:
-    name: ${{ format('sgl-kernel-unit-test-2-gpu-amd (linux-{0}-2gpu-sglang)', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    name: ${{ format('sgl-kernel-unit-test-2-gpu-amd (linux-{0}-2gpu-sglang)', inputs.runner_arch || 'mi325') }}
     needs: [check-changes, call-gate]
     if: |
       always() && !cancelled() &&
@@ -250,7 +250,7 @@ jobs:
           needs.check-changes.outputs.sgl_kernel == 'true'
         )
       )
-    runs-on: ${{ format('linux-{0}-2gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    runs-on: ${{ format('linux-{0}-2gpu-sglang', inputs.runner_arch || 'mi325') }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -289,7 +289,7 @@ jobs:
   # =============================================== primary ====================================================
 
   stage-a-test-1-gpu-small-amd:
-    name: ${{ format('stage-a-test-1-gpu-small-amd (linux-{0}-1gpu-sglang)', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    name: ${{ format('stage-a-test-1-gpu-small-amd (linux-{0}-1gpu-sglang)', inputs.runner_arch || 'mi325') }}
     needs: [check-changes, call-gate]
     if: |
       always() && !cancelled() &&
@@ -301,7 +301,7 @@ jobs:
           ((needs.check-changes.outputs.main_package == 'true') || (needs.check-changes.outputs.sgl_kernel == 'true'))
         )
       )
-    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || 'mi325') }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -326,7 +326,7 @@ jobs:
           bash scripts/ci/amd/amd_ci_exec.sh -w "/sglang-checkout/test" python3 run_suite.py --hw amd --suite stage-a-test-1-gpu-small-amd ${{ needs.check-changes.outputs.continue_on_error == 'true' && '--continue-on-error' || '' }}
 
   jit-kernel-unit-test-amd:
-    name: ${{ format('jit-kernel-unit-test-amd (linux-{0}-1gpu-sglang)', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    name: ${{ format('jit-kernel-unit-test-amd (linux-{0}-1gpu-sglang)', inputs.runner_arch || 'mi325') }}
     needs: [check-changes, call-gate]
     if: |
       always() && !cancelled() &&
@@ -338,7 +338,7 @@ jobs:
           needs.check-changes.outputs.jit_kernel == 'true'
         )
       )
-    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || 'mi325') }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -389,7 +389,7 @@ jobs:
           max-wait-minutes: '240'
 
   stage-b-test-1-gpu-small-amd:
-    name: ${{ format('stage-b-test-1-gpu-small-amd (linux-{0}-1gpu-sglang, {1})', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325'), matrix.part) }}
+    name: ${{ format('stage-b-test-1-gpu-small-amd (linux-{0}-1gpu-sglang, {1})', inputs.runner_arch || 'mi325', matrix.part) }}
     needs: [check-changes, wait-for-stage-a-amd]
     if: |
       always() &&
@@ -405,7 +405,7 @@ jobs:
       fail-fast: false
       matrix:
         part: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
-    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || 'mi325') }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -429,7 +429,7 @@ jobs:
           bash scripts/ci/amd/amd_ci_exec.sh -w "/sglang-checkout/test" python3 run_suite.py --hw amd --suite stage-b-test-1-gpu-small-amd --auto-partition-id ${{ matrix.part }} --auto-partition-size 14 --timeout-per-file 2400 ${{ needs.check-changes.outputs.continue_on_error == 'true' && '--continue-on-error' || '' }}
 
   stage-b-test-1-gpu-small-amd-nondeterministic:
-    name: ${{ format('stage-b-test-1-gpu-small-amd-nondeterministic (linux-{0}-1gpu-sglang)', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    name: ${{ format('stage-b-test-1-gpu-small-amd-nondeterministic (linux-{0}-1gpu-sglang)', inputs.runner_arch || 'mi325') }}
     needs: [check-changes, wait-for-stage-a-amd]
     if: |
       always() &&
@@ -441,7 +441,7 @@ jobs:
           ((needs.check-changes.outputs.main_package == 'true') || (needs.check-changes.outputs.sgl_kernel == 'true'))
         )
       )
-    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || 'mi325') }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -504,7 +504,7 @@ jobs:
           bash scripts/ci/amd/amd_ci_exec.sh -w "/sglang-checkout/test" python3 run_suite.py --hw amd --suite stage-b-test-1-gpu-small-amd-mi35x ${{ needs.check-changes.outputs.continue_on_error == 'true' && '--continue-on-error' || '' }}
 
   stage-b-test-1-gpu-large-amd:
-    name: ${{ format('stage-b-test-1-gpu-large-amd (linux-{0}-1gpu-sglang, {1})', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325'), matrix.part) }}
+    name: ${{ format('stage-b-test-1-gpu-large-amd (linux-{0}-1gpu-sglang, {1})', inputs.runner_arch || 'mi325', matrix.part) }}
     needs: [check-changes, wait-for-stage-a-amd]
     if: |
       always() &&
@@ -520,7 +520,7 @@ jobs:
       fail-fast: false
       matrix:
         part: [0, 1, 2]
-    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    runs-on: ${{ format('linux-{0}-1gpu-sglang', inputs.runner_arch || 'mi325') }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -544,7 +544,7 @@ jobs:
           bash scripts/ci/amd/amd_ci_exec.sh -w "/sglang-checkout/test" python3 run_suite.py --hw amd --suite stage-b-test-1-gpu-large-amd --auto-partition-id ${{ matrix.part }} --auto-partition-size 3 --timeout-per-file 2700 ${{ needs.check-changes.outputs.continue_on_error == 'true' && '--continue-on-error' || '' }}
 
   stage-b-test-2-gpu-large-amd:
-    name: ${{ format('stage-b-test-2-gpu-large-amd (linux-{0}-2gpu-sglang, {1})', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325'), matrix.part) }}
+    name: ${{ format('stage-b-test-2-gpu-large-amd (linux-{0}-2gpu-sglang, {1})', inputs.runner_arch || 'mi325', matrix.part) }}
     needs: [check-changes, wait-for-stage-a-amd]
     if: |
       always() &&
@@ -560,7 +560,7 @@ jobs:
       fail-fast: false
       matrix:
         part: [0, 1]
-    runs-on: ${{ format('linux-{0}-2gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    runs-on: ${{ format('linux-{0}-2gpu-sglang', inputs.runner_arch || 'mi325') }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -889,7 +889,7 @@ jobs:
           max-wait-minutes: '480'
 
   stage-c-test-4-gpu-amd:
-    name: ${{ format('stage-c-test-4-gpu-amd (linux-{0}-4gpu-sglang, {1})', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325'), matrix.part) }}
+    name: ${{ format('stage-c-test-4-gpu-amd (linux-{0}-4gpu-sglang, {1})', inputs.runner_arch || 'mi325', matrix.part) }}
     needs: [check-changes, call-gate, wait-for-stage-b-amd]
     if: |
       always() &&
@@ -905,7 +905,7 @@ jobs:
       fail-fast: false
       matrix:
         part: [0]
-    runs-on: ${{ format('linux-{0}-4gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    runs-on: ${{ format('linux-{0}-4gpu-sglang', inputs.runner_arch || 'mi325') }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -945,7 +945,7 @@ jobs:
               ${{ needs.check-changes.outputs.continue_on_error == 'true' && '--continue-on-error' || '' }}
 
   stage-c-test-large-8-gpu-amd:
-    name: ${{ format('stage-c-test-large-8-gpu-amd (linux-{0}-8gpu-sglang, {1})', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325'), matrix.part) }}
+    name: ${{ format('stage-c-test-large-8-gpu-amd (linux-{0}-8gpu-sglang, {1})', inputs.runner_arch || 'mi325', matrix.part) }}
     needs: [check-changes, call-gate, wait-for-stage-b-amd]
     if: |
       always() &&
@@ -958,12 +958,12 @@ jobs:
         )
       )
     env:
-      RUNNER_LABELS: ${{ format('linux-{0}-8gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+      RUNNER_LABELS: ${{ format('linux-{0}-8gpu-sglang', inputs.runner_arch || 'mi325') }}
     strategy:
       fail-fast: false
       matrix:
         part: [0, 1, 2]
-    runs-on: ${{ format('linux-{0}-8gpu-sglang', inputs.runner_arch || (github.event_name == 'pull_request' && 'mi300' || 'mi325')) }}
+    runs-on: ${{ format('linux-{0}-8gpu-sglang', inputs.runner_arch || 'mi325') }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4