diff --git a/files/initrd/opt/rr/boot.sh b/files/initrd/opt/rr/boot.sh
index 1795ca1a..651094ee 100755
--- a/files/initrd/opt/rr/boot.sh
+++ b/files/initrd/opt/rr/boot.sh
@@ -151,7 +151,7 @@ if [ "${DT}" = "true" ]; then
   CMDLINE["syno_ttyS0"]="serial,0x3f8"
   CMDLINE["syno_ttyS1"]="serial,0x2f8"
 else
-  # CMDLINE["SMBusHddDynamicPower"]="1"
+  CMDLINE["SMBusHddDynamicPower"]="1"
   CMDLINE["syno_hdd_detect"]="0"
   CMDLINE["syno_hdd_powerup_seq"]="0"
 fi
diff --git a/files/initrd/opt/rr/platforms.yml b/files/initrd/opt/rr/platforms.yml
index c2e23612..f5703ac1 100644
--- a/files/initrd/opt/rr/platforms.yml
+++ b/files/initrd/opt/rr/platforms.yml
@@ -26,6 +26,7 @@ platforms:
       - "x2apic"
     synoinfo:
       <<: *synoinfo
+      HddEnableDynamicPower: "no"
     productvers:
       "7.0":
         kver: "4.4.180"