diff --git a/quartus/soc_system.qsf b/quartus/soc_system.qsf
index fd0a57c1c6dcc25dc0282255b1ee372ad215507f..e3afa4e9776e037929a3ccda2f54617b471ebb7d 100644
--- a/quartus/soc_system.qsf
+++ b/quartus/soc_system.qsf
@@ -97,9 +97,10 @@ set_location_assignment PIN_AV16 -to eneta_mdio
 set_location_assignment PIN_N1 -to eneta_resetn
 set_location_assignment PIN_N2 -to eneta_intn
 set_location_assignment PIN_AG33 -to eneta_rx_p
-#set_location_assignment PIN_AG32 -to eneta_rx_n
 set_location_assignment PIN_AK39 -to eneta_tx_p
-#set_location_assignment PIN_AK38 -to eneta_tx_n
+
+#set_instance_assignment -name IO_STANDARD LVDS -to enetb_tx_p
+#set_instance_assignment -name IO_STANDARD LVDS -to enetb_rx_p
 
 # ETH 2
 set_location_assignment PIN_AV17 -to enetb_mdc
@@ -109,6 +110,15 @@ set_location_assignment PIN_R3 -to enetb_intn
 set_location_assignment PIN_AH35 -to enetb_rx_p
 set_location_assignment PIN_AL37 -to enetb_tx_p
 
+set_instance_assignment -name IO_STANDARD "1.8 V" -to enetb_intn
+set_instance_assignment -name IO_STANDARD "1.8 V" -to enetb_resetn
+set_instance_assignment -name IO_STANDARD "1.8 V" -to enetb_mdc
+set_instance_assignment -name IO_STANDARD "1.8 V" -to enetb_mdio
+
+#set_instance_assignment -name IO_STANDARD LVDS -to enetb_tx_p
+#set_instance_assignment -name IO_STANDARD LVDS -to enetb_rx_p
+
+
 # IO Standard
 
 # set_global_assignment -name STRATIX_DEVICE_IO_STANDARD "1.8 V"