diff --git a/projects/common/vcu118/vcu118_system_bd.tcl b/projects/common/vcu118/vcu118_system_bd.tcl
index 654be967f..e3677139e 100644
--- a/projects/common/vcu118/vcu118_system_bd.tcl
+++ b/projects/common/vcu118/vcu118_system_bd.tcl
@@ -77,8 +77,8 @@ ad_ip_parameter sys_500m_rstgen CONFIG.C_EXT_RST_WIDTH 1
 # instance: ddr4
 
 ad_ip_instance ip:ddr4 axi_ddr_cntrl
-ad_ip_parameter axi_ddr_cntrl CONFIG.C0_CLOCK_BOARD_INTERFACE default_250mhz_clk1
-ad_ip_parameter axi_ddr_cntrl CONFIG.C0_DDR4_BOARD_INTERFACE ddr4_sdram_c1
+ad_ip_parameter axi_ddr_cntrl CONFIG.C0_CLOCK_BOARD_INTERFACE default_250mhz_clk2
+ad_ip_parameter axi_ddr_cntrl CONFIG.C0_DDR4_BOARD_INTERFACE ddr4_sdram_c2
 ad_ip_parameter axi_ddr_cntrl CONFIG.RESET_BOARD_INTERFACE reset
 ad_ip_parameter axi_ddr_cntrl CONFIG.ADDN_UI_CLKOUT2_FREQ_HZ 250
 ad_ip_parameter axi_ddr_cntrl CONFIG.ADDN_UI_CLKOUT3_FREQ_HZ 500
diff --git a/projects/common/vcu118/vcu118_system_constr.xdc b/projects/common/vcu118/vcu118_system_constr.xdc
index ff23c7c12..f4aeb3204 100644
--- a/projects/common/vcu118/vcu118_system_constr.xdc
+++ b/projects/common/vcu118/vcu118_system_constr.xdc
@@ -5,8 +5,8 @@ set_property -dict  {PACKAGE_PIN  L19  IOSTANDARD  LVCMOS12} [get_ports sys_rst]
 
 # clocks
 
-set_property -dict  {PACKAGE_PIN  E12   IOSTANDARD  DIFF_SSTL12} [get_ports sys_clk_p]
-set_property -dict  {PACKAGE_PIN  D12   IOSTANDARD  DIFF_SSTL12} [get_ports sys_clk_n]
+set_property -dict  {PACKAGE_PIN  AW26   IOSTANDARD  LVDS} [get_ports sys_clk_p]
+set_property -dict  {PACKAGE_PIN  AW27   IOSTANDARD  LVDS} [get_ports sys_clk_n]
 
 # ethernet