diff --git a/src/cpu/cpu_map.xml b/src/cpu/cpu_map.xml
index b924bd3b7819641bf5b6ceb95722e97b87de8ee1..6387ce44f285dce6d2df8be3fb9eaaf62e3cf28c 100644
--- a/src/cpu/cpu_map.xml
+++ b/src/cpu/cpu_map.xml
@@ -1385,31 +1385,26 @@
 
     <model name='power6'>
       <vendor name='IBM'/>
-      <compat isa='2.05'/>
       <pvr value='0x003e0000'/>
     </model>
 
     <model name='power7'>
       <vendor name='IBM'/>
-      <compat isa='2.06'/>
       <pvr value='0x003f0000'/>
     </model>
 
     <model name='power7+'>
       <vendor name='IBM'/>
-      <compat isa='2.06B'/>
       <pvr value='0x004a0000'/>
     </model>
 
     <model name='power8e'>
       <vendor name='IBM'/>
-      <compat isa='2.07'/>
       <pvr value='0x004b0000'/>
     </model>
 
     <model name='power8'>
       <vendor name='IBM'/>
-      <compat isa='2.07'/>
       <pvr value='0x004d0000'/>
     </model>