diff --git a/simpleInstall/install.sh b/simpleInstall/install.sh
index f092048ee..d56b0e2a4 100644
--- a/simpleInstall/install.sh
+++ b/simpleInstall/install.sh
@@ -157,9 +157,11 @@ function check_os() {
       exit 1
     fi
     # check cpu instruction
-    if [ X"$(cat /proc/cpuinfo | grep rdtscp | uniq)" == X"" ]
-    then
-        echo "The cpu instruction rdtscp is missing." && exit 1
+    CPU_BIT=$(uname -m)
+    if [ X"$CPU_BIT" == X"x86_64" ]; then
+        if [ X"$(cat /proc/cpuinfo | grep rdtscp | uniq)" == X"" ]; then
+            echo "The cpu instruction rdtscp is missing." && exit 1
+        fi
     fi
 }