diff --git a/slsDetectorSoftware/multiSlsDetector/multiSlsDetector.cpp b/slsDetectorSoftware/multiSlsDetector/multiSlsDetector.cpp
index 24b0010e2..b79082437 100644
--- a/slsDetectorSoftware/multiSlsDetector/multiSlsDetector.cpp
+++ b/slsDetectorSoftware/multiSlsDetector/multiSlsDetector.cpp
@@ -3907,9 +3907,11 @@ int multiSlsDetector::resetFPGA() {
 
 int multiSlsDetector::powerChip(int ival) {
 	int ret = OK, ret1 = OK;
-
 	for (unsigned int i = 0; i < detectors.size(); ++i) {
 		ret = detectors[i]->powerChip(ival);
+		// 1s sleep per module for large systems
+		if(ival >=0 && detectors.size() > 3) 
+			usleep(1000000);
 		if (detectors[i]->getErrorMask())
 			setErrorMask(getErrorMask() | (1 << i));
 		if (ret == FAIL)