diff --git a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer
index 7ba030459..043cdff1e 100755
Binary files a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer and b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer differ
diff --git a/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
index 1e624f57d..7643fc0fa 100644
--- a/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
@@ -378,6 +378,7 @@ void setupDetector() {
     clkDivider[SYSTEM_C0] = DEFAULT_SYSTEM_C0;
     clkDivider[SYSTEM_C1] = DEFAULT_SYSTEM_C1;
     clkDivider[SYSTEM_C2] = DEFAULT_SYSTEM_C2;
+    clkDivider[SYSTEM_C3] = DEFAULT_SYSTEM_C3;
 
     highvoltage = 0;
     trimmingPrint = logINFO;
@@ -2044,6 +2045,7 @@ int setClockDivider(enum CLKINDEX ind, int val) {
         clkPhase[SYSTEM_C0] = 0;
         clkPhase[SYSTEM_C1] = 0;
         clkPhase[SYSTEM_C2] = 0;
+        clkPhase[SYSTEM_C3] = 0;
     }
 
     // set the phase in degrees (reset by pll)
diff --git a/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h b/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
index 3fd3dd250..e02872239 100644
--- a/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
+++ b/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
@@ -36,11 +36,12 @@
 #define DEFAULT_DELAY_AFTER_TRIGGER      (0)
 #define DEFAULT_HIGH_VOLTAGE             (0)
 #define DEFAULT_TIMING_MODE              (AUTO_TIMING)
-#define DEFAULT_READOUT_C0               (10) //(125000000) // rdo_clk, 125 MHz
-#define DEFAULT_READOUT_C1               (10) //(125000000) // rdo_x2_clk, 125 MHz
+#define DEFAULT_READOUT_C0               (8) //(125000000) // rdo_clk, 125 MHz
+#define DEFAULT_READOUT_C1               (8) //(125000000) // rdo_x2_clk, 125 MHz
 #define DEFAULT_SYSTEM_C0                (4) //(250000000) // run_clk, 250 MHz
-#define DEFAULT_SYSTEM_C1                (8) //(125000000) // chip_clk, 125 MHz
-#define DEFAULT_SYSTEM_C2                (8) //(125000000) // sync_clk, 125 MHz
+#define DEFAULT_SYSTEM_C1                (8) //(125000000) // sync_clk, 125 MHz
+#define DEFAULT_SYSTEM_C2                (8) //(125000000) // str_clk, 125 MHz
+#define DEFAULT_SYSTEM_C3                (5) //(200000000) // smp_clk, 200 MHz (only for timing receiver)
 #define DEFAULT_ASIC_LATCHING_NUM_PULSES (10)
 #define DEFAULT_MSTR_OTPT_P1_NUM_PULSES  (20)
 
@@ -48,7 +49,7 @@
 #define MAX_TIMESLOT_VAL        (0xFFFFFF)
 #define IP_HEADER_SIZE          (20)
 #define FIXED_PLL_FREQUENCY     (020000000)  // 20MHz
-#define READOUT_PLL_VCO_FREQ_HZ (1250000000) // 1.25GHz
+#define READOUT_PLL_VCO_FREQ_HZ (1000000000) // 1GHz
 #define SYSTEM_PLL_VCO_FREQ_HZ  (1000000000) // 1GHz
 #define MAX_NUM_DESERIALIZERS   (40)
 
@@ -105,10 +106,11 @@ enum CLKINDEX {
     SYSTEM_C0,
     SYSTEM_C1,
     SYSTEM_C2,
+    SYSTEM_C3,
     NUM_CLOCKS
 };
 #define CLK_NAMES                                                              \
-    "READOUT_C0", "READOUT_C1", "SYSTEM_C0", "SYSTEM_C1", "SYSTEM_C2"
+    "READOUT_C0", "READOUT_C1", "SYSTEM_C0", "SYSTEM_C1", "SYSTEM_C2", "SYSTEM_C3"
 enum PLLINDEX { READOUT_PLL, SYSTEM_PLL };
 
 /* Struct Definitions */
@@ -164,4 +166,4 @@ typedef struct udp_header_struct {
 #define SIGNAL_resStorage  (22)
 #define SIGNAL_resCounter  (23)
 #define SIGNAL_CHSclk      (24)
-#define SIGNAL_exposing    (25)
\ No newline at end of file
+#define SIGNAL_exposing    (25)
diff --git a/slsSupportLib/include/versionAPI.h b/slsSupportLib/include/versionAPI.h
index 1cdf3790f..4637973d3 100644
--- a/slsSupportLib/include/versionAPI.h
+++ b/slsSupportLib/include/versionAPI.h
@@ -8,5 +8,5 @@
 #define APIGOTTHARD2 0x200810
 #define APIJUNGFRAU  0x200810
 #define APIMOENCH    0x200810
-#define APIMYTHEN3   0x200818
 #define APIEIGER 0x200831
+#define APIMYTHEN3 0x200901