diff --git a/synthDC/Makefile b/synthDC/Makefile
index 53faa4522..611dcfef9 100755
--- a/synthDC/Makefile
+++ b/synthDC/Makefile
@@ -5,8 +5,8 @@ NAME := synth
 
 # defaults
 export DESIGN ?= wallypipelinedcore
-export FREQ ?= 4000
-export CONFIG ?= rv64gc
+export FREQ ?= 3402
+export CONFIG ?= rv32e
 # sky130 and sky90 presently supported
 export TECH ?= tsmc28
 # MAXCORES allows parallel compilation, which is faster but less CPU-efficient
@@ -126,6 +126,8 @@ clean:
 	rm -f command.log
 	rm -f filenames*.log
 	rm -f power.saif
+	rm -f Synopsys_stack_trace_*.txt
+	rm -f crte_*.txt
 
 
 
diff --git a/synthDC/runAllSynths.sh b/synthDC/runAllSynths.sh
index 1b81a6cd0..6944552d4 100755
--- a/synthDC/runAllSynths.sh
+++ b/synthDC/runAllSynths.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/bash
 
+make clean
 mv runs runArchive/$(date +"%Y_%m_%d_%I_%M_%p")
 mv newRuns runs
 mkdir newRuns