diff --git a/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer b/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer
new file mode 100755
index 000000000..a2370acc2
Binary files /dev/null and b/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer differ
diff --git a/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
index 83f8aca38..9e788d959 100644
--- a/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c
@@ -591,10 +591,9 @@ 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 658096edd..16f976b73 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 3d8b1d493..1c1a55a8a 100644
--- a/slsDetectorServers/xilinx_ctbDetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/xilinx_ctbDetectorServer/slsDetectorFunctionList.c
@@ -412,10 +412,9 @@ 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;
     }
@@ -602,25 +601,6 @@ int powerChip(int on, char *mess) {
         LOG(logINFOBLUE, ("Powering chip: off\n"));
         bus_w(addr, bus_r(addr) & ~mask);
         chipConfigured = 0;
-        if (FAIL == XILINX_FMC_disable_all(mess, MAX_STR_LENGTH)) {
-            return FAIL;
-        }
-#ifdef VIRTUAL
-        setTransceiverAlignment(0);
-#endif
-        // transceiver alignment should be reset at power off
-        if (isTransceiverAligned()) {
-            sprintf(mess, "Transceiver alignment not reset\n");
-            LOG(logERROR, (mess));
-
-            // to be removed when fixed later
-            LOG(logWARNING,
-                ("Bypassing this error for now. To be fixed later...\n"));
-            return OK;
-
-            return FAIL;
-        }
-        LOG(logINFO, ("\tTransceiver alignment has been reset\n"));
     }
     return OK;
 }
diff --git a/slsSupportLib/include/sls/versionAPI.h b/slsSupportLib/include/sls/versionAPI.h
index d61f4d50c..0361e13be 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 0x260227"
+#define APIXILINXCTB "0.0.0 0x260317"
 #define APIJUNGFRAU  "0.0.0 0x260227"
 #define APIMYTHEN3   "0.0.0 0x260227"