diff --git a/files/initrd/opt/rr/model-configs/HD6500.yml b/files/initrd/opt/rr/model-configs/HD6500.yml
index caaf7463..26f48df3 100644
--- a/files/initrd/opt/rr/model-configs/HD6500.yml
+++ b/files/initrd/opt/rr/model-configs/HD6500.yml
@@ -34,9 +34,10 @@ platform: "purley"
 unique: "synology_purley_hd6500"
 serial:
   prefix:
-    - "0000"
-  middle: "XXX"
+    - "21C0"
+  middle: "RUR"
   suffix: "alpha"
+  macpre: 9009d0
 dom: 1
 dt: true
 beta: false
diff --git a/files/initrd/opt/rr/model-configs/SA3400.yml b/files/initrd/opt/rr/model-configs/SA3400.yml
index f4d85e70..6063b2e0 100644
--- a/files/initrd/opt/rr/model-configs/SA3400.yml
+++ b/files/initrd/opt/rr/model-configs/SA3400.yml
@@ -30,7 +30,7 @@ platform: "broadwellnk"
 unique: "synology_broadwellnk_sa3400"
 serial:
   prefix:
-    - "1920"
+    - "1970"
   middle: "RJR"
   suffix: "alpha"
 dom: 1