diff --git a/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/chassis-powercycle b/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/chassis-powercycle
index 0db82ce..1f61e15 100644
--- a/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/chassis-powercycle
+++ b/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/chassis-powercycle
@@ -5,16 +5,17 @@
 # Provide source directive to shellcheck.
 # shellcheck source=meta-facebook/recipes-phosphor/state/phosphor-state-manager/greatlakes/power-cmd
 source /usr/libexec/phosphor-state-manager/power-cmd
-
-GPIOCHIP_IO_EXP_SLOT_PWR_CTRL=$(basename "/sys/bus/i2c/devices/$SPIDER_BOARD_IO_EXP_BUS_NUM-00$IO_EXP_SLOT_PWR_CTRL_ADDR/"*gpiochip*)
-GPIOCHIP_IO_EXP_SLED_PWR_CTRL=$(basename "/sys/bus/i2c/devices/$MANAGEMENT_BOARD_IO_EXP_BUS_NUM-00$IO_EXP_SLED_PWR_CTRL_ADDR/"*gpiochip*)
-
 #IO 0:7 input port for showing slot 1:8 power status
 #IO 8:16 output port for controlling slot 1:8 power status
 CHASSIS_ID=$1
 IO_EXP_SLOT_PWR_STATUS=$((CHASSIS_ID - 1))
 IO_EXP_SLOT_PWR_CTRL=$((IO_EXP_SLOT_PWR_STATUS + 8))
 IO_EXP_SLED_CYCLE=12
+IO_EXP_BIC_PWR_CTRL=32
+
+GPIOCHIP_IO_EXP_SLOT_PWR_CTRL=$(basename "/sys/bus/i2c/devices/$SPIDER_BOARD_IO_EXP_BUS_NUM-00$IO_EXP_SLOT_PWR_CTRL_ADDR/"*gpiochip*)
+GPIOCHIP_IO_EXP_SLED_PWR_CTRL=$(basename "/sys/bus/i2c/devices/$MANAGEMENT_BOARD_IO_EXP_BUS_NUM-00$IO_EXP_SLED_PWR_CTRL_ADDR/"*gpiochip*)
+GPIOCHIP_IO_EXP_BIC_PWR_CTRL=$(basename "/sys/bus/i2c/devices/$IO_EXP_SLOT_PWR_STATUS-00$IO_EXP_BIC_PWR_CTRL_ADDR/"*gpiochip*)
 
 chassis-power-cycle()
 {
@@ -25,6 +26,11 @@
         chassis_status=$(gpioget "$GPIOCHIP_IO_EXP_SLOT_PWR_CTRL" "$IO_EXP_SLOT_PWR_STATUS")
         if [ "$chassis_status" == "$STATE_ON" ]
         then
+            if ! gpioset "$GPIOCHIP_IO_EXP_BIC_PWR_CTRL" "$IO_EXP_BIC_PWR_CTRL"=0
+            then
+                echo "Failed to set slot$1 sentinel dome bic off"
+            fi
+            sleep 1
             if ! gpioset "$GPIOCHIP_IO_EXP_SLOT_PWR_CTRL" "$IO_EXP_SLOT_PWR_CTRL"=1
             then
                 echo "Failed to set slot$1 power off"
diff --git a/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/chassis-poweroff b/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/chassis-poweroff
index 991dbc5..98692ea 100644
--- a/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/chassis-poweroff
+++ b/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/chassis-poweroff
@@ -5,18 +5,24 @@
 # Provide source directive to shellcheck.
 # shellcheck source=meta-facebook/recipes-phosphor/state/phosphor-state-manager/greatlakes/power-cmd
 source /usr/libexec/phosphor-state-manager/power-cmd
-
-GPIOCHIP_IO_EXP_SLOT_PWR_CTRL=$(basename "/sys/bus/i2c/devices/$SPIDER_BOARD_IO_EXP_BUS_NUM-00$IO_EXP_SLOT_PWR_CTRL_ADDR/"*gpiochip*)
-
 #IO 0:7 input port for showing slot 1:8 power status
 #IO 8:16 output port for controlling slot 1:8 power status
 CHASSIS_ID=$1
 IO_EXP_SLOT_PWR_STATUS=$((CHASSIS_ID - 1))
 IO_EXP_SLOT_PWR_CTRL=$((IO_EXP_SLOT_PWR_STATUS + 8))
+IO_EXP_BIC_PWR_CTRL=32
+
+GPIOCHIP_IO_EXP_SLOT_PWR_CTRL=$(basename "/sys/bus/i2c/devices/$SPIDER_BOARD_IO_EXP_BUS_NUM-00$IO_EXP_SLOT_PWR_CTRL_ADDR/"*gpiochip*)
+GPIOCHIP_IO_EXP_BIC_PWR_CTRL=$(basename "/sys/bus/i2c/devices/$IO_EXP_SLOT_PWR_STATUS-00$IO_EXP_BIC_PWR_CTRL_ADDR/"*gpiochip*)
 
 # Server 12v power off
 chassis-power-off()
 {
+        if ! gpioset "$GPIOCHIP_IO_EXP_BIC_PWR_CTRL" "$IO_EXP_BIC_PWR_CTRL"=0
+        then
+                echo "Failed to set slot$1 sentinel dome bic off"
+        fi
+        sleep 1
         if ! gpioset "$GPIOCHIP_IO_EXP_SLOT_PWR_CTRL" "$IO_EXP_SLOT_PWR_CTRL"=1
         then
                 echo "Failed to set slot$1 power off"
diff --git a/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/power-cmd b/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/power-cmd
index af5218a..e3ce65f 100644
--- a/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/power-cmd
+++ b/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/power-cmd
@@ -7,6 +7,7 @@
 export SPIDER_BOARD_IO_EXP_BUS_NUM="28"
 export IO_EXP_SLOT_PWR_CTRL_ADDR="21"
 export IO_EXP_SLED_PWR_CTRL_ADDR="21"
+export IO_EXP_BIC_PWR_CTRL_ADDR="20"
 export CHASSIS_BUS_NAME="xyz.openbmc_project.State.Chassis"
 export CHASSIS_OBJ_PATH="/xyz/openbmc_project/state/chassis"
 export CHASSIS_INTF_NAME="xyz.openbmc_project.State.Chassis"