Index: trunk/i386/libsaio/cpu.c
===================================================================
--- trunk/i386/libsaio/cpu.c	(revision 912)
+++ trunk/i386/libsaio/cpu.c	(revision 913)
@@ -138,7 +138,7 @@
     
     if (p->CPU.Vendor == 0x756E6547 /* Intel */ && 
         p->CPU.Family == 0x06 && 
-        p->CPU.Model >= CPUID_MODEL_PENRYN && 
+        p->CPU.Model >= CPUID_MODEL_NEHALEM && 
         p->CPU.Model != CPUID_MODEL_ATOM        // MSR is *NOT* available on the Intel Atom CPU
         ){
         msr = rdmsr64(MSR_CORE_THREAD_COUNT);									// Undocumented MSR in Nehalem and newer CPUs