diff --git a/src/mainboard/tyan/s2881/Kconfig b/src/mainboard/tyan/s2881/Kconfig
index a299b03fa3..4ea0ea1605 100644
--- a/src/mainboard/tyan/s2881/Kconfig
+++ b/src/mainboard/tyan/s2881/Kconfig
@@ -24,7 +24,7 @@ config APIC_ID_OFFSET
 
 config SB_HT_CHAIN_ON_BUS0
 	int
-	default 0
+	default 2
 	depends on BOARD_TYAN_S2881
 
 config LB_CKS_RANGE_END
diff --git a/src/mainboard/tyan/s2881/Options.lb b/src/mainboard/tyan/s2881/Options.lb
index cde6d5adf1..59002d27de 100644
--- a/src/mainboard/tyan/s2881/Options.lb
+++ b/src/mainboard/tyan/s2881/Options.lb
@@ -128,7 +128,7 @@ default CONFIG_HT_CHAIN_UNITID_BASE=0x0a
 default CONFIG_HT_CHAIN_END_UNITID_BASE=0x06
 
 #make the SB HT chain on bus 0, default is not (0)
-default CONFIG_SB_HT_CHAIN_ON_BUS0=0
+default CONFIG_SB_HT_CHAIN_ON_BUS0=2
 
 ##only offset for SB chain?, default is yes(1)
 #default CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY=0