diff --git a/slsDetectorServers/eigerDetectorServer/CMakeLists.txt b/slsDetectorServers/eigerDetectorServer/CMakeLists.txt
index 6b427b22a..c4d8f5260 100644
--- a/slsDetectorServers/eigerDetectorServer/CMakeLists.txt
+++ b/slsDetectorServers/eigerDetectorServer/CMakeLists.txt
@@ -58,7 +58,7 @@ target_compile_definitions(eigerDetectorServerSlaveTop_virtual
 )
 
 target_link_libraries(eigerDetectorServerSlaveTop_virtual
-    PUBLIC pthread rt
+    PUBLIC pthread rt slsProjectCSettings
 )
 
 set_target_properties(eigerDetectorServerSlaveTop_virtual PROPERTIES
@@ -86,7 +86,7 @@ target_compile_definitions(eigerDetectorServerSlaveBottom_virtual
 )
 
 target_link_libraries(eigerDetectorServerSlaveBottom_virtual
-    PUBLIC pthread rt
+    PUBLIC pthread rt slsProjectCSettings
 )
 
 set_target_properties(eigerDetectorServerSlaveBottom_virtual PROPERTIES
diff --git a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer
index 65f996a94..2d7534def 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 dfe0b8f8e..87cffcb72 100644
--- a/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
@@ -813,12 +813,12 @@ int setPeriod(int64_t val) {
         return FAIL;
     }
     LOG(logINFO, ("Setting period %lld ns\n", (long long int)val));
-    val *= (1E-9 * getFrequency(SYSTEM_C2));
+    val *= (1E-9 * getFrequency(SYSTEM_C0));
     set64BitReg(val, SET_PERIOD_LSB_REG, SET_PERIOD_MSB_REG);
 
     // validate for tolerance
     int64_t retval = getPeriod();
-    val /= (1E-9 * getFrequency(SYSTEM_C2));
+    val /= (1E-9 * getFrequency(SYSTEM_C0));
     if (val != retval) {
         return FAIL;
     }
@@ -827,7 +827,7 @@ int setPeriod(int64_t val) {
 
 int64_t getPeriod() {
     return get64BitReg(SET_PERIOD_LSB_REG, SET_PERIOD_MSB_REG) /
-           (1E-9 * getFrequency(SYSTEM_C2));
+           (1E-9 * getFrequency(SYSTEM_C0));
 }
 
 void setNumIntGates(int val) {
@@ -860,7 +860,7 @@ void updateGatePeriod() {
         }
     }
     LOG(logINFO, ("\tSetting Gate Period to %lld ns\n", (long long int)max));
-    max *= (1E-9 * getFrequency(SYSTEM_C2));
+    max *= (1E-9 * getFrequency(SYSTEM_C0));
     set64BitReg(max, ASIC_EXP_GATE_PERIOD_LSB_REG,
                 ASIC_EXP_GATE_PERIOD_MSB_REG);
 }
@@ -868,7 +868,7 @@ void updateGatePeriod() {
 int64_t getGatePeriod() {
     return get64BitReg(ASIC_EXP_GATE_PERIOD_LSB_REG,
                        ASIC_EXP_GATE_PERIOD_MSB_REG) /
-           (1E-9 * getFrequency(SYSTEM_C2));
+           (1E-9 * getFrequency(SYSTEM_C0));
 }
 
 int setExpTime(int gateIndex, int64_t val) {
@@ -898,12 +898,12 @@ int setExpTime(int gateIndex, int64_t val) {
     }
     LOG(logINFO, ("Setting exptime %lld ns (index:%d)\n", (long long int)val,
                   gateIndex));
-    val *= (1E-9 * getFrequency(SYSTEM_C2));
+    val *= (1E-9 * getFrequency(SYSTEM_C0));
     set64BitReg(val, alsb, amsb);
 
     // validate for tolerance
     int64_t retval = getExpTime(gateIndex);
-    val /= (1E-9 * getFrequency(SYSTEM_C2));
+    val /= (1E-9 * getFrequency(SYSTEM_C0));
     if (val != retval) {
         return FAIL;
     }
@@ -933,7 +933,7 @@ int64_t getExpTime(int gateIndex) {
         LOG(logERROR, ("Invalid gate index: %d\n", gateIndex));
         return -1;
     }
-    return get64BitReg(alsb, amsb) / (1E-9 * getFrequency(SYSTEM_C2));
+    return get64BitReg(alsb, amsb) / (1E-9 * getFrequency(SYSTEM_C0));
 }
 
 int setGateDelay(int gateIndex, int64_t val) {
@@ -963,12 +963,12 @@ int setGateDelay(int gateIndex, int64_t val) {
     }
     LOG(logINFO, ("Setting gate delay %lld ns (index:%d)\n", (long long int)val,
                   gateIndex));
-    val *= (1E-9 * getFrequency(SYSTEM_C2));
+    val *= (1E-9 * getFrequency(SYSTEM_C0));
     set64BitReg(val, alsb, amsb);
 
     // validate for tolerance
     int64_t retval = getGateDelay(gateIndex);
-    val /= (1E-9 * getFrequency(SYSTEM_C2));
+    val /= (1E-9 * getFrequency(SYSTEM_C0));
     if (val != retval) {
         return FAIL;
     }
@@ -998,7 +998,7 @@ int64_t getGateDelay(int gateIndex) {
         LOG(logERROR, ("Invalid gate index: %d\n", gateIndex));
         return -1;
     }
-    return get64BitReg(alsb, amsb) / (1E-9 * getFrequency(SYSTEM_C2));
+    return get64BitReg(alsb, amsb) / (1E-9 * getFrequency(SYSTEM_C0));
 }
 
 void setCounterMask(uint32_t arg) {
@@ -1027,12 +1027,12 @@ int setDelayAfterTrigger(int64_t val) {
         return FAIL;
     }
     LOG(logINFO, ("Setting delay after trigger %lld ns\n", (long long int)val));
-    val *= (1E-9 * getFrequency(SYSTEM_C2));
+    val *= (1E-9 * getFrequency(SYSTEM_C0));
     set64BitReg(val, SET_TRIGGER_DELAY_LSB_REG, SET_TRIGGER_DELAY_MSB_REG);
 
     // validate for tolerance
     int64_t retval = getDelayAfterTrigger();
-    val /= (1E-9 * getFrequency(SYSTEM_C2));
+    val /= (1E-9 * getFrequency(SYSTEM_C0));
     if (val != retval) {
         return FAIL;
     }
@@ -1041,7 +1041,7 @@ int setDelayAfterTrigger(int64_t val) {
 
 int64_t getDelayAfterTrigger() {
     return get64BitReg(SET_TRIGGER_DELAY_LSB_REG, SET_TRIGGER_DELAY_MSB_REG) /
-           (1E-9 * getFrequency(SYSTEM_C2));
+           (1E-9 * getFrequency(SYSTEM_C0));
 }
 
 int64_t getNumFramesLeft() {
@@ -1054,12 +1054,12 @@ int64_t getNumTriggersLeft() {
 
 int64_t getDelayAfterTriggerLeft() {
     return get64BitReg(GET_DELAY_LSB_REG, GET_DELAY_MSB_REG) /
-           (1E-9 * getFrequency(SYSTEM_C2));
+           (1E-9 * getFrequency(SYSTEM_C0));
 }
 
 int64_t getPeriodLeft() {
     return get64BitReg(GET_PERIOD_LSB_REG, GET_PERIOD_MSB_REG) /
-           (1E-9 * getFrequency(SYSTEM_C2));
+           (1E-9 * getFrequency(SYSTEM_C0));
 }
 
 int64_t getFramesFromStart() {
diff --git a/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h b/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
index 632cc66b1..11d81a494 100644
--- a/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
+++ b/slsDetectorServers/mythen3DetectorServer/slsDetectorServer_defs.h
@@ -37,9 +37,9 @@
 #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_SYSTEM_C0                (5)  //(250000000) // run_clk, 250 MHz
-#define DEFAULT_SYSTEM_C1                (10) //(125000000) // chip_clk, 125 MHz
-#define DEFAULT_SYSTEM_C2                (10) //(125000000) // sync_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_ASIC_LATCHING_NUM_PULSES (10)
 #define DEFAULT_MSTR_OTPT_P1_NUM_PULSES  (20)
 
@@ -47,7 +47,7 @@
 #define IP_HEADER_SIZE          (20)
 #define FIXED_PLL_FREQUENCY     (020000000)  // 20MHz
 #define READOUT_PLL_VCO_FREQ_HZ (1250000000) // 1.25GHz
-#define SYSTEM_PLL_VCO_FREQ_HZ  (1250000000) // 1.25GHz
+#define SYSTEM_PLL_VCO_FREQ_HZ  (1000000000) // 1GHz
 #define MAX_PATTERN_LENGTH      (0x2000)     // maximum number of words (64bit)
 
 /** Other Definitions */
diff --git a/slsSupportLib/include/versionAPI.h b/slsSupportLib/include/versionAPI.h
index 9de40495e..f85149320 100644
--- a/slsSupportLib/include/versionAPI.h
+++ b/slsSupportLib/include/versionAPI.h
@@ -6,7 +6,7 @@
 #define APICTB 0x200610
 #define APIGOTTHARD 0x200610
 #define APIJUNGFRAU 0x200610
-#define APIMYTHEN3 0x200610
 #define APIMOENCH 0x200610
 #define APIGOTTHARD2 0x200610
 #define APIEIGER 0x200616
+#define APIMYTHEN3 0x200616