diff --git a/Sources/Infra/GCM/GCM415/xdc/gt_links_gcm415.xdc b/Sources/Infra/GCM/GCM415/xdc/gt_links_gcm415.xdc
index efb761641..b2f93bf53 100644
--- a/Sources/Infra/GCM/GCM415/xdc/gt_links_gcm415.xdc
+++ b/Sources/Infra/GCM/GCM415/xdc/gt_links_gcm415.xdc
@@ -102,9 +102,9 @@ create_clock -period 6.400    [get_ports {ports_upstrm_i[refclk0_pi][11]}]
 set_property PACKAGE_PIN BT55 [get_ports {ports_upstrm_i[gt_rx_pi][44]}]
 
 # B201  UpstrmID:10 Enabled  -------------------------------
-set_property PACKAGE_PIN BB46 [get_ports {ports_upstrm_i[refclk0_pi][10]}]
-create_clock -period 6.400    [get_ports {ports_upstrm_i[refclk0_pi][10]}]
-set_property PACKAGE_PIN BK55 [get_ports {ports_upstrm_i[gt_rx_pi][40]}]
+#set_property PACKAGE_PIN BB46 [get_ports {ports_upstrm_i[refclk0_pi][10]}]
+#create_clock -period 6.400    [get_ports {ports_upstrm_i[refclk0_pi][10]}]
+#set_property PACKAGE_PIN BK55 [get_ports {ports_upstrm_i[gt_rx_pi][40]}]
 
 # B205  UpstrmID:14  Disabled  -------------------------------
 set_property PACKAGE_PIN AN44 [get_ports {ports_upstrm_i[refclk0_pi][14]}]
@@ -196,6 +196,7 @@ set_property PACKAGE_PIN E9   [get_ports {ports_dnstrm_o[gt_tx_po][0]}]
 #create_clock -period 6.400    [get_ports {i_rdo_ports_top[felix_refclk_p]}]
 
 #TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO#TODO
+#Uncomment 201 above too 
 # Hack using B201 for CTP loopback test ########################################
 # B201  #10  GTYP        --- 0 ---  --- 1 ---  --- 2 ---  --- 3 ---
 #     REFCLKP0_201   BB46,BB47  BA44,BA45
