diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c
index 2c54be28fdfa..0bfd7ada6535 100644
--- a/sys/amd64/amd64/machdep.c
+++ b/sys/amd64/amd64/machdep.c
@@ -236,19 +236,21 @@ cpu_startup(dummy)
 #ifdef PERFMON
 	perfmon_init();
 #endif
+	realmem = Maxmem;
+
+	/*
+	 * Display physical memory if SMBIOS reports reasonable amount.
+	 */
+	memsize = 0;
 	sysenv = getenv("smbios.memory.enabled");
 	if (sysenv != NULL) {
-		memsize = (uintmax_t)strtoul(sysenv, (char **)NULL, 10);
+		memsize = (uintmax_t)strtoul(sysenv, (char **)NULL, 10) << 10;
 		freeenv(sysenv);
-	} else
-		memsize = 0;
-	if (memsize > 0)
-		printf("real memory  = %ju (%ju MB)\n", memsize << 10,
-		    memsize >> 10);
-	else
-		printf("real memory  = %ju (%ju MB)\n", ptoa((uintmax_t)Maxmem),
-		    ptoa((uintmax_t)Maxmem) / 1048576);
-	realmem = Maxmem;
+	}
+	if (memsize < ptoa((uintmax_t)cnt.v_free_count))
+		memsize = ptoa((uintmax_t)Maxmem);
+	printf("real memory  = %ju (%ju MB)\n", memsize, memsize >> 20);
+
 	/*
 	 * Display any holes after the first chunk of extended memory.
 	 */
diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c
index cba1637746ec..9c1ea0b143b8 100644
--- a/sys/i386/i386/machdep.c
+++ b/sys/i386/i386/machdep.c
@@ -280,19 +280,21 @@ cpu_startup(dummy)
 #ifdef PERFMON
 	perfmon_init();
 #endif
+	realmem = Maxmem;
+
+	/*
+	 * Display physical memory if SMBIOS reports reasonable amount.
+	 */
+	memsize = 0;
 	sysenv = getenv("smbios.memory.enabled");
 	if (sysenv != NULL) {
-		memsize = (uintmax_t)strtoul(sysenv, (char **)NULL, 10);
+		memsize = (uintmax_t)strtoul(sysenv, (char **)NULL, 10) << 10;
 		freeenv(sysenv);
-	} else
-		memsize = 0;
-	if (memsize > 0)
-		printf("real memory  = %ju (%ju MB)\n", memsize << 10,
-		    memsize >> 10);
-	else
-		printf("real memory  = %ju (%ju MB)\n", ptoa((uintmax_t)Maxmem),
-		    ptoa((uintmax_t)Maxmem) / 1048576);
-	realmem = Maxmem;
+	}
+	if (memsize < ptoa((uintmax_t)cnt.v_free_count))
+		memsize = ptoa((uintmax_t)Maxmem);
+	printf("real memory  = %ju (%ju MB)\n", memsize, memsize >> 20);
+
 	/*
 	 * Display any holes after the first chunk of extended memory.
 	 */