diff --git a/src/satman/src/main.rs b/src/satman/src/main.rs
index 76a2f58..d8a42b6 100644
--- a/src/satman/src/main.rs
+++ b/src/satman/src/main.rs
@@ -477,6 +477,13 @@ pub extern fn main_core0() -> i32 {
     }
     timer.delay_us(1500); // wait for CPLL/QPLL lock
 
+    info!("Switching SYS clocks...");
+    unsafe {
+        csr::sys_crg::clock_switch_write(1);
+    }
+
+    timer.delay_us(10_000); // wait for SYS PLL lock
+
     unsafe {
         csr::drtio_transceiver::txenable_write(0xffffffffu32 as _);
     }