diff --git a/software/common/validation/memory_tests.c b/software/common/validation/memory_tests.c
index a699fa2b2159623593d1ef87cf42bfe1553c6792..ca046a5e4467ba9230c8d72229f7b2c87a27e29b 100644
--- a/software/common/validation/memory_tests.c
+++ b/software/common/validation/memory_tests.c
@@ -302,8 +302,8 @@ int apb_io_test(void)
   hardfault_expected = 0;
   temp_data = address_test_read(APB_IO_BASE_ADDR);
   if (hardfault_occurred!=0) err_code |= 1<<0;
-  temp_data = address_test_read(APB_IO_BASE_ADDR+APB_IO_SIZE-4);
-  if (hardfault_occurred!=0) err_code |= 1<<1;
+  // temp_data = address_test_read(APB_IO_BASE_ADDR+APB_IO_SIZE-4); - APB Slave Error if No DMA in System only test lower limit
+  // if (hardfault_occurred!=0) err_code |= 1<<1; - Tested in APB Mux Test Anyway
 
   /* Test addresses beyond IO boundary */
 //  hardfault_occurred = 0;