diff --git a/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/power-workarounds.sh b/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/power-workarounds.sh
index f98c408..51d3a9a 100644
--- a/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/power-workarounds.sh
+++ b/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/power-workarounds.sh
@@ -14,3 +14,11 @@
 i2cset -y 5 0x71 0x00 0x01
 i2cset -y 5 0x71 0x21 0x3B 0x01 i
 i2cset -y 5 0x71 0x00 0x00
+
+# VDN A - PGOOD_ON threshold
+i2cset -y 4 0x71 0x00 0x00 b # PAGE
+i2cset -y 4 0x71 0x5E 0xCD 0x00 i # set to 0.8V
+
+# VDN B - PGOOD_ON threshold
+i2cset -y 5 0x71 0x00 0x00 b # PAGE
+i2cset -y 5 0x71 0x5E 0xCD 0x00 i # set to 0.8V