diff --git a/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer b/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer
index 4684df85c..a2370acc2 100755
Binary files a/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer and b/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer differ
diff --git a/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
index 694dcbf4a..3a9a352c3 100644
--- a/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
@@ -595,10 +595,9 @@ void setupDetector() {
     LTC2620_Configure();
 
     // dacs only
-    LOG(logINFOBLUE, ("Powering down all dacs\n"));
+    LOG(logINFOBLUE, ("Setting all dacs to min (0 mV)\n"));
     for (int idac = 0; idac < NDAC_ONLY; ++idac) {
-        initError =
-            setDAC(idac, LTC2620_GetPowerDownValue(), false, initErrorMessage);
+        initError = setDAC(idac, 0, false, initErrorMessage);
         if (initError == FAIL)
             return;
     }
diff --git a/slsDetectorServers/xilinx_ctbDetectorServer/bin/xilinx_ctbDetectorServer_developer b/slsDetectorServers/xilinx_ctbDetectorServer/bin/xilinx_ctbDetectorServer_developer
index f88fa6422..4cf4a345b 100755
Binary files a/slsDetectorServers/xilinx_ctbDetectorServer/bin/xilinx_ctbDetectorServer_developer and b/slsDetectorServers/xilinx_ctbDetectorServer/bin/xilinx_ctbDetectorServer_developer differ
diff --git a/slsDetectorServers/xilinx_ctbDetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/xilinx_ctbDetectorServer/slsDetectorFunctionList.c
index 862894a7a..53db9e3dd 100644
--- a/slsDetectorServers/xilinx_ctbDetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/xilinx_ctbDetectorServer/slsDetectorFunctionList.c
@@ -410,10 +410,9 @@ void setupDetector() {
         return;
     }
     // dacs only
-    LOG(logINFOBLUE, ("Powering down all dacs\n"));
+    LOG(logINFOBLUE, ("Setting all dacs to min (0 mV)\n"));
     for (int idac = 0; idac < NDAC_ONLY; ++idac) {
-        initError = setDAC(idac, LTC2620_D_GetPowerDownValue(), false,
-                           initErrorMessage);
+        initError = setDAC(idac, 0, false, initErrorMessage);
         if (initError == FAIL)
             return;
     }
diff --git a/slsSupportLib/include/sls/versionAPI.h b/slsSupportLib/include/sls/versionAPI.h
index bb8c4c4d4..ed583ba69 100644
--- a/slsSupportLib/include/sls/versionAPI.h
+++ b/slsSupportLib/include/sls/versionAPI.h
@@ -3,10 +3,10 @@
 /** API versions */
 #define APILIB       "0.0.0 0x250909"
 #define APIRECEIVER  "0.0.0 0x250822"
-#define APICTB       "0.0.0 0x260227"
+#define APICTB       "0.0.0 0x260317"
 #define APIGOTTHARD2 "0.0.0 0x260227"
 #define APIMOENCH    "0.0.0 0x260227"
 #define APIEIGER     "0.0.0 0x260227"
-#define APIXILINXCTB "0.0.0 0x260305"
+#define APIXILINXCTB "0.0.0 0x260324"
 #define APIJUNGFRAU  "0.0.0 0x260227"
 #define APIMYTHEN3   "0.0.0 0x260227"