diff --git a/jupyter/datascience/ubi9-python-3.12/kustomize/base/statefulset.yaml b/jupyter/datascience/ubi9-python-3.12/kustomize/base/statefulset.yaml
index 506b22093a..0fc2fdcd6c 100644
--- a/jupyter/datascience/ubi9-python-3.12/kustomize/base/statefulset.yaml
+++ b/jupyter/datascience/ubi9-python-3.12/kustomize/base/statefulset.yaml
@@ -33,26 +33,29 @@ spec:
             - name: notebook-port
               protocol: TCP
               containerPort: 8888
+          # Generous delays for slow or constrained nodes (e.g. ppc64le in CI).
+          # Liveness must allow Jupyter + datascience deps to bind before first check (avoids restart loops).
           livenessProbe:
             tcpSocket:
               port: notebook-port
-            initialDelaySeconds: 5
-            periodSeconds: 5
+            initialDelaySeconds: 120
+            periodSeconds: 10
             successThreshold: 1
-            failureThreshold: 3
+            failureThreshold: 6
           readinessProbe:
             httpGet:
               path: /notebook/opendatahub/jovyan/api
               port: notebook-port
               scheme: HTTP
-            initialDelaySeconds: 10
-            periodSeconds: 5
+            initialDelaySeconds: 90
+            periodSeconds: 10
             successThreshold: 1
-            failureThreshold: 3
+            failureThreshold: 6
+          # Jupyter + papermill share the pod cgroup; keep headroom for datascience tests on ppc64le CI.
           resources:
             limits:
               cpu: 500m
-              memory: 2Gi
+              memory: 4Gi
             requests:
               cpu: 500m
-              memory: 2Gi
+              memory: 4Gi
diff --git a/jupyter/minimal/ubi9-python-3.12/kustomize/base/statefulset.yaml b/jupyter/minimal/ubi9-python-3.12/kustomize/base/statefulset.yaml
index 1fcbc02a5e..01a5bee9f9 100644
--- a/jupyter/minimal/ubi9-python-3.12/kustomize/base/statefulset.yaml
+++ b/jupyter/minimal/ubi9-python-3.12/kustomize/base/statefulset.yaml
@@ -33,22 +33,23 @@ spec:
             - name: notebook-port
               protocol: TCP
               containerPort: 8888
+          # Generous delays for slow or constrained nodes (e.g. ppc64le in CI)
           livenessProbe:
             tcpSocket:
               port: notebook-port
-            initialDelaySeconds: 5
-            periodSeconds: 5
+            initialDelaySeconds: 30
+            periodSeconds: 10
             successThreshold: 1
-            failureThreshold: 3
+            failureThreshold: 6
           readinessProbe:
             httpGet:
               path: /notebook/opendatahub/jovyan/api
               port: notebook-port
               scheme: HTTP
-            initialDelaySeconds: 10
-            periodSeconds: 5
+            initialDelaySeconds: 45
+            periodSeconds: 10
             successThreshold: 1
-            failureThreshold: 3
+            failureThreshold: 6
           resources:
             limits:
               cpu: 500m
diff --git a/tests/containers/kubernetes_utils.py b/tests/containers/kubernetes_utils.py
index 830b0e3b7f..33a0b9a528 100644
--- a/tests/containers/kubernetes_utils.py
+++ b/tests/containers/kubernetes_utils.py
@@ -267,11 +267,12 @@ def deploy(
 
             self.port = p.get_actual_port()
             LOGGER.debug(f"Listening on port {self.port}")
+            # Use 120s timeout for slower cold starts (e.g. code-server on arm64).
             Wait.until(
                 "Connecting to pod succeeds",
                 1,
-                30,
-                lambda: requests.get(f"http://localhost:{self.port}").status_code == 200,
+                120,
+                lambda: requests.get(f"http://127.0.0.1:{self.port}/api", timeout=10).status_code == 200,
             )
             LOGGER.debug("Done setting up portforward")