Index: libomptarget/deviceRTLs/nvptx/src/loop.cu
===================================================================
--- libomptarget/deviceRTLs/nvptx/src/loop.cu
+++ libomptarget/deviceRTLs/nvptx/src/loop.cu
@@ -757,8 +757,16 @@
     // Atomic max of iterations.
     uint64_t *varArray = (uint64_t *)array;
     uint64_t elem = varArray[i];
+#if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 350
     (void)atomicMax((unsigned long long int *)Buffer,
                     (unsigned long long int)elem);
+#else
+    uint64_t old_value = *Buffer;
+    while (old_value < elem && !atomicCAS((unsigned long long *)Buffer,
+                                          (unsigned long long)old_value,
+                                          (unsigned long long)elem)) {
+    };
+#endif
 
     // Barrier.
     syncWorkersInGenericMode(NumThreads);