diff --git a/test/stressMathCore.cxx b/test/stressMathCore.cxx
index 50557741a2dbcdd583a88e9bab55b89fba51094d..3128d7c51049a5da3f9d4eba81ebf9937f6069c1 100644
--- a/test/stressMathCore.cxx
+++ b/test/stressMathCore.cxx
@@ -1551,9 +1551,8 @@ int stressMathCore(double nscale = 1) {
    bm.Stop("stressMathCore");
    std::cout <<"******************************************************************************\n";
    bm.Print("stressMathCore");
-   //const double reftime = 1.00; // ref time on  macbook pro (intel core duo 2.2 GHz)
-   const double reftime = 1.17; // ref time on  imac  (intel dual core 32 bits  2. GHz)
-   double rootmarks = 800 * reftime / bm.GetCpuTime("stressMathCore");
+   const double reftime = 1.70; // ref time on  pcbrun4
+   double rootmarks = 860 * reftime / bm.GetCpuTime("stressMathCore");
    std::cout << " ROOTMARKS = " << rootmarks << " ROOT version: " << gROOT->GetVersion() << "\t" 
              << gROOT->GetSvnBranch() << "@" << gROOT->GetSvnRevision() << std::endl;
    std::cout <<"*******************************************************************************\n";
diff --git a/test/stressMathMore.cxx b/test/stressMathMore.cxx
index 543dcf9c2d20e1ca5e1ddc1c8479deb61fa0f475..28cff23c5a1552d0b5701ce0ce4f024d8da9b429 100644
--- a/test/stressMathMore.cxx
+++ b/test/stressMathMore.cxx
@@ -550,9 +550,8 @@ int stressMathMore(double nscale = 1) {
    bm.Stop("stressMathMore");
    std::cout <<"******************************************************************************\n";
    bm.Print("stressMathMore");
-   //const double reftime = 1.00; // ref time on  macbook pro (intel core duo 2.2 GHz)
-   const double reftime = 0.07; // ref time on  imac  (intel dual core 32 bits  2. GHz)
-   double rootmarks = 800 * reftime / bm.GetCpuTime("stressMathMore");
+   const double reftime = 0.12; // ref time on  pcbrun4
+   double rootmarks = 860 * reftime / bm.GetCpuTime("stressMathMore");
    std::cout << " ROOTMARKS = " << rootmarks << " ROOT version: " << gROOT->GetVersion() << "\t" 
              << gROOT->GetSvnBranch() << "@" << gROOT->GetSvnRevision() << std::endl;
    std::cout <<"*******************************************************************************\n";