diff --git a/configs/fpgas/marsellus/virtex7.sh b/configs/fpgas/marsellus/virtex7.sh
index 6a876c4..40c5b7d 100644
--- a/configs/fpgas/marsellus/virtex7.sh
+++ b/configs/fpgas/marsellus/virtex7.sh
@@ -17,6 +17,6 @@ source $scriptDir/../../common.sh
 export PULPRUN_PLATFORM=fpga
 
 #Virtex7 uses 50MHz SoC Frequency
-export PULPRT_CONFIG_CFLAGS='-DARCHI_FPGA_FREQUENCY=20000000'
+export PULPRT_CONFIG_CFLAGS='-DARCHI_FPGA_FREQUENCY=10000000'
 
 export io=uart
diff --git a/configs/fpgas/pulp/virtex7.sh b/configs/fpgas/pulp/virtex7.sh
index 5b31806..9ae9201 100644
--- a/configs/fpgas/pulp/virtex7.sh
+++ b/configs/fpgas/pulp/virtex7.sh
@@ -18,6 +18,6 @@ source $scriptDir/../../common.sh
 export PULPRUN_PLATFORM=fpga
 
 #Virtex7 uses 50MHz SoC Frequency
-export PULPRT_CONFIG_CFLAGS='-DARCHI_FPGA_FREQUENCY=50000000'
+export PULPRT_CONFIG_CFLAGS='-DARCHI_FPGA_FREQUENCY=10000000'
 
 export io=uart
\ No newline at end of file
diff --git a/include/archi/chips/marsellus/properties.h b/include/archi/chips/marsellus/properties.h
index 28b9894..735c687 100644
--- a/include/archi/chips/marsellus/properties.h
+++ b/include/archi/chips/marsellus/properties.h
@@ -23,15 +23,15 @@
  */
 
 #ifndef ARCHI_FPGA_FREQUENCY
-#define ARCHI_FPGA_FREQUENCY 5000000
+#define ARCHI_FPGA_FREQUENCY 1000000
 #endif
 
 #ifndef ARCHI_FPGA_FC_FREQUENCY
-#define ARCHI_FPGA_FC_FREQUENCY 5000000
+#define ARCHI_FPGA_FC_FREQUENCY 2000000
 #endif
 
 #ifndef ARCHI_FPGA_CL_FREQUENCY
-#define ARCHI_FPGA_CL_FREQUENCY 5000000
+#define ARCHI_FPGA_CL_FREQUENCY 20000000
 #endif
 /*
  * MEMORIES