diff --git a/sims/vcs/run-coalperfs.sh b/sims/vcs/run-coalperfs.sh
index b2ba82af..19756ffe 100755
--- a/sims/vcs/run-coalperfs.sh
+++ b/sims/vcs/run-coalperfs.sh
@@ -8,7 +8,9 @@ fi
 
 set -ex
 
-configurations=("MemtraceCoreNV64B8IdConfig" "MemtraceCoreNV128B8IdConfig" "MemtraceCoreNV256B8IdConfig" "MemtraceCoreNV512B8IdConfig" "MemtraceCoreNV64B16IdConfig" "MemtraceCoreNV128B16IdConfig" "MemtraceCoreNV256B16IdConfig" "MemtraceCoreNV512B16IdConfig" "MemtraceCoreNV64B32IdConfig" "MemtraceCoreNV128B32IdConfig" "MemtraceCoreNV256B32IdConfig" "MemtraceCoreNV512B32IdConfig") 
+configurations=("MemtraceCoreNV64B8IdConfig" "MemtraceCoreNV128B8IdConfig" "MemtraceCoreNV256B8IdConfig" "MemtraceCoreNV64B16IdConfig" "MemtraceCoreNV128B16IdConfig" "MemtraceCoreNV256B16IdConfig" "MemtraceCoreNV64B32IdConfig" "MemtraceCoreNV128B32IdConfig" "MemtraceCoreNV256B32IdConfig") 
+# Disabled as Chipyard fails to elaborate with 512b sbus:
+# "MemtraceCoreNV512B8IdConfig" "MemtraceCoreNV512B16IdConfig" "MemtraceCoreNV512B32IdConfig"
 
 rm -f coal_perf.txt
 # make clean