diff --git a/util/led/mach.c b/util/led/mach.c
index b314ee505..c61cd8488 100644
--- a/util/led/mach.c
+++ b/util/led/mach.c
@@ -10,20 +10,40 @@
  * Now for Vax 11/750.
  */
 
+#include <local.h>
+
 #define K 1024L
 
-	mems[ALLOEMIT + 0].mem_left = 64 * K;
+#if BIGMACHINE
+	mems[ALLOEMIT + 0].mem_left = 32 * K;
 	mems[ALLOEMIT + 1].mem_left = 8 * K;
-	mems[ALLOEMIT + 2].mem_left = 64 * K;
-	mems[ALLORELO].mem_left = 64 * K;
-	mems[ALLOLOCL].mem_left = 64 * K;
-	mems[ALLOGLOB].mem_left = 64 * K;
-	mems[ALLOLCHR].mem_left = 64 * K;
-	mems[ALLOGCHR].mem_left = 64 * K;
+	mems[ALLOEMIT + 2].mem_left = 16 * K;
+	mems[ALLORELO].mem_left = 32 * K;
+	mems[ALLOLOCL].mem_left = 32 * K;
+	mems[ALLOGLOB].mem_left = 32 * K;
+	mems[ALLOLCHR].mem_left = 32 * K;
+	mems[ALLOGCHR].mem_left = 32 * K;
 #ifdef SYMDBUG
-	mems[ALLODBUG].mem_left = 64 * K;
+	mems[ALLODBUG].mem_left = 32 * K;
 #endif SYMDBUG
 	mems[ALLOSYMB].mem_left = 4 * K;
 	mems[ALLOARCH].mem_left = 1 * K;
-	mems[ALLOMODL].mem_left = 3 * 64 * K;
+	mems[ALLOMODL].mem_left = 32 * K;
 	mems[ALLORANL].mem_left = 4 * K;
+#else
+	mems[ALLOEMIT + 0].mem_left = 8 * K;
+	mems[ALLOEMIT + 1].mem_left = 2 * K;
+	mems[ALLOEMIT + 2].mem_left = 4 * K;
+	mems[ALLORELO].mem_left = 2 * K;
+	mems[ALLOLOCL].mem_left = 2 * K;
+	mems[ALLOGLOB].mem_left = 2 * K;
+	mems[ALLOLCHR].mem_left = 2 * K;
+	mems[ALLOGCHR].mem_left = 2 * K;
+#ifdef SYMDBUG
+	mems[ALLODBUG].mem_left = 2 * K;
+#endif SYMDBUG
+	mems[ALLOSYMB].mem_left = 2 * K;
+	mems[ALLOARCH].mem_left = 1 * K;
+	mems[ALLOMODL].mem_left = 12 * K;
+	mems[ALLORANL].mem_left = 4 * K;
+#endif