diff --git a/src/mainboard/pcchips/m810lmr/Config b/src/mainboard/pcchips/m810lmr/Config
index f7fc361730..077ea3bc77 100644
--- a/src/mainboard/pcchips/m810lmr/Config
+++ b/src/mainboard/pcchips/m810lmr/Config
@@ -11,7 +11,7 @@ mainboardinit cpu/p6/earlymtrr.inc
 
 option ENABLE_FIXED_AND_VARIABLE_MTRRS
 option FINAL_MAINBOARD_FIXUP
-option HAVE_PIRQ_TABLE
+option HAVE_PIRQ_TABLE=1
 object mainboard.o
 object irq_tables.o
 keyboard pc80
diff --git a/src/mainboard/sis/540/Config b/src/mainboard/sis/540/Config
index 6b48000f04..42c750b6de 100644
--- a/src/mainboard/sis/540/Config
+++ b/src/mainboard/sis/540/Config
@@ -7,10 +7,9 @@ mainboardinit pc80/serial.inc
 northsouthbridge sis/540
 # superio sis/950
 nsuperio sis/950 com1={1} floppy=1  lpt=1
-mainboardinit cpu/p6/earlymtrr.inc
 
 option FINAL_MAINBOARD_FIXUP
-option HAVE_PIRQ_TABLE
+option HAVE_PIRQ_TABLE=1
 object mainboard.o
 object irq_tables.o
 keyboard pc80
diff --git a/src/mainboard/sis/550/Config b/src/mainboard/sis/550/Config
index 1bebcd1846..0443b03e5f 100644
--- a/src/mainboard/sis/550/Config
+++ b/src/mainboard/sis/550/Config
@@ -3,10 +3,9 @@ mainboardinit cpu/i386/entry16.inc
 ldscript cpu/i386/entry16.lds
 
 northsouthbridge sis/550
-mainboardinit cpu/p6/earlymtrr.inc
 
 option FINAL_MAINBOARD_FIXUP
-option HAVE_PIRQ_TABLE
+option HAVE_PIRQ_TABLE=1
 object mainboard.o
 object irq_tables.o
 keyboard pc80