diff --git a/example/common/tb/example_core_pcie_ptile/test_example_core_pcie_ptile.py b/example/common/tb/example_core_pcie_ptile/test_example_core_pcie_ptile.py
index b32fb3a..42cce81 100644
--- a/example/common/tb/example_core_pcie_ptile/test_example_core_pcie_ptile.py
+++ b/example/common/tb/example_core_pcie_ptile/test_example_core_pcie_ptile.py
@@ -580,6 +580,8 @@ async def run_test(dut):
 
     tb.log.info("Test RX completion buffer (CPLH, 8)")
 
+    tb.rc.split_on_all_rcb = True
+
     size = 8
     stride = size
     for count in range(32, 256+1, 8):
@@ -599,6 +601,8 @@ async def run_test(dut):
     for count in range(8, 256+1, 8):
         await dma_cpl_buf_test(tb, dev, mem_base+128-8, region_len-1, size, stride, count, 2000)
 
+    tb.rc.split_on_all_rcb = False
+
     tb.log.info("Test RX completion buffer (CPLD)")
 
     size = 512
diff --git a/example/common/tb/example_core_pcie_s10/test_example_core_pcie_s10.py b/example/common/tb/example_core_pcie_s10/test_example_core_pcie_s10.py
index eb5a238..d6cfac5 100644
--- a/example/common/tb/example_core_pcie_s10/test_example_core_pcie_s10.py
+++ b/example/common/tb/example_core_pcie_s10/test_example_core_pcie_s10.py
@@ -528,6 +528,8 @@ async def run_test(dut):
 
     tb.log.info("Test RX completion buffer (CPLH, 8)")
 
+    tb.rc.split_on_all_rcb = True
+
     size = 8
     stride = size
     for count in range(32, 256+1, 8):
@@ -547,6 +549,8 @@ async def run_test(dut):
     for count in range(8, 256+1, 8):
         await dma_cpl_buf_test(tb, dev, mem_base+128-8, region_len-1, size, stride, count, 2000)
 
+    tb.rc.split_on_all_rcb = False
+
     tb.log.info("Test RX completion buffer (CPLD)")
 
     size = 512
diff --git a/example/common/tb/example_core_pcie_us/test_example_core_pcie_us.py b/example/common/tb/example_core_pcie_us/test_example_core_pcie_us.py
index 248c279..b201443 100644
--- a/example/common/tb/example_core_pcie_us/test_example_core_pcie_us.py
+++ b/example/common/tb/example_core_pcie_us/test_example_core_pcie_us.py
@@ -621,6 +621,8 @@ async def run_test(dut):
 
     tb.log.info("Test RX completion buffer (CPLH, 8)")
 
+    tb.rc.split_on_all_rcb = True
+
     size = 8
     stride = size
     for count in range(32, 256+1, 8):
@@ -640,6 +642,8 @@ async def run_test(dut):
     for count in range(8, 256+1, 8):
         await dma_cpl_buf_test(tb, dev, mem_base+128-8, region_len-1, size, stride, count, 2000)
 
+    tb.rc.split_on_all_rcb = False
+
     tb.log.info("Test RX completion buffer (CPLD)")
 
     size = 512