diff --git a/src/northsouthbridge/sis/630/southbridge.c b/src/northsouthbridge/sis/630/southbridge.c
index f016dbe230..36d9fe1733 100644
--- a/src/northsouthbridge/sis/630/southbridge.c
+++ b/src/northsouthbridge/sis/630/southbridge.c
@@ -247,13 +247,13 @@ static void
 timer0_fixup(void)
 {
 	/* select Timer 0, 16 Bit Access, Mode 3, Binary */
-	outb_p(0x43, 0x36);
+	outb_p(0x36, 0x43);
 
 	/* Load LSB, 0x00 */
-	outb_p(0x40, 0x00);
+	outb_p(0x00, 0x40);
 
 	/* Load MSB, 0x00 */
-	outb_p(0x40, 0x00);
+	outb_p(0x00, 0x40);
 }
 
 /* rtc_fixup: Fix up the Real Time Clock
diff --git a/src/northsouthbridge/sis/635/southbridge.c b/src/northsouthbridge/sis/635/southbridge.c
index 145691d237..dd6e6680a9 100644
--- a/src/northsouthbridge/sis/635/southbridge.c
+++ b/src/northsouthbridge/sis/635/southbridge.c
@@ -201,13 +201,13 @@ static void
 timer0_fixup(void)
 {
 	/* select Timer 0, 16 Bit Access, Mode 3, Binary */
-	outb_p(0x43, 0x36);
+	outb_p(0x36, 0x43);
 
 	/* Load LSB, 0x00 */
-	outb_p(0x40, 0x00);
+	outb_p(0x00, 0x40);
 
 	/* Load MSB, 0x00 */
-	outb_p(0x40, 0x00);
+	outb_p(0x00, 0x40);
 }
 
 /* rtc_fixup: Fix up the Real Time Clock
diff --git a/src/northsouthbridge/sis/730/southbridge.c b/src/northsouthbridge/sis/730/southbridge.c
index 8f89f09b6a..e920d139c2 100644
--- a/src/northsouthbridge/sis/730/southbridge.c
+++ b/src/northsouthbridge/sis/730/southbridge.c
@@ -246,15 +246,14 @@ static void
 timer0_fixup(void)
 {
 	/* select Timer 0, 16 Bit Access, Mode 3, Binary */
-	outb_p(0x43, 0x36);
+	outb_p(0x36, 0x43);
 
 	/* Load LSB, 0x00 */
-	outb_p(0x40, 0x00);
+	outb_p(0x00, 0x40);
 
 	/* Load MSB, 0x00 */
-	outb_p(0x40, 0x00);
+	outb_p(0x00, 0x40);
 }
-
 /* rtc_fixup: Fix up the Real Time Clock
  *
  * The Real Time Clock updates the day/time information in the CMOS RAM every second.
diff --git a/src/northsouthbridge/sis/735/southbridge.c b/src/northsouthbridge/sis/735/southbridge.c
index c597b3baf0..6fd68eee1c 100644
--- a/src/northsouthbridge/sis/735/southbridge.c
+++ b/src/northsouthbridge/sis/735/southbridge.c
@@ -206,13 +206,13 @@ static void
 timer0_fixup(void)
 {
 	/* select Timer 0, 16 Bit Access, Mode 3, Binary */
-	outb_p(0x43, 0x36);
+	outb_p(0x36, 0x43);
 
 	/* Load LSB, 0x00 */
-	outb_p(0x40, 0x00);
+	outb_p(0x00, 0x40);
 
 	/* Load MSB, 0x00 */
-	outb_p(0x40, 0x00);
+	outb_p(0x00, 0x40);
 }
 
 /* rtc_fixup: Fix up the Real Time Clock