diff --git a/fpga/src/main/scala/vc707/Configs.scala b/fpga/src/main/scala/vc707/Configs.scala
index 1be812fa..124920d7 100644
--- a/fpga/src/main/scala/vc707/Configs.scala
+++ b/fpga/src/main/scala/vc707/Configs.scala
@@ -45,6 +45,8 @@ class WithVC707Tweaks extends Config (
   new chipyard.config.WithMemoryBusFrequency(50.0) ++
   new chipyard.config.WithSystemBusFrequency(50.0) ++
   new chipyard.config.WithPeripheryBusFrequency(50.0) ++
+  new chipyard.config.WithControlBusFrequency(50.0) ++
+  new chipyard.config.WithFrontBusFrequency(50.0) ++
 
   new chipyard.harness.WithHarnessBinderClockFreqMHz(50) ++
   new WithFPGAFrequency(50) ++ // default 50MHz freq
@@ -74,8 +76,11 @@ class BoomVC707Config extends Config (
 )
 
 class WithFPGAFrequency(fMHz: Double) extends Config (
-  new chipyard.config.WithPeripheryBusFrequency(fMHz) ++ // assumes using PBUS as default freq.
-  new chipyard.config.WithMemoryBusFrequency(fMHz)
+  new chipyard.config.WithPeripheryBusFrequency(fMHz) ++
+  new chipyard.config.WithMemoryBusFrequency(fMHz) ++
+  new chipyard.config.WithSystemBusFrequency(fMHz) ++
+  new chipyard.config.WithControlBusFrequency(fMHz) ++
+  new chipyard.config.WithFrontBusFrequency(fMHz)
 )
 
 class WithFPGAFreq25MHz extends WithFPGAFrequency(25)