diff --git a/healthcheck/README.md b/healthcheck/README.md
index b5bdfde..eef7837 100644
--- a/healthcheck/README.md
+++ b/healthcheck/README.md
@@ -42,6 +42,10 @@ Copy the script and the config file into the system to check:
 cp healthcheck.py /usr/local/bin/healthcheck.py
 cp healthcheck.cfg.example /usr/local/etc/healthcheck.cfg
 ```
+Make the script executable:
+```
+chmod +x /usr/local/bin/healthcheck.py
+```
 Edit `/usr/local/etc/healthcheck.cfg` enabling the checks you need and configuring email settings.
 Run `/usr/local/bin/healthcheck.py /usr/local/etc/healthcheck.cfg` to check it is working. If needed, change the config to make a check fail and see if the notification mail is delivered. If you need to do some testing without spamming emails, run with the parameter `--dry-run`.
 Now copy the cron file:
diff --git a/healthcheck/healthcheck.cfg.example b/healthcheck/healthcheck.cfg.example
index c3543b2..a619659 100644
--- a/healthcheck/healthcheck.cfg.example
+++ b/healthcheck/healthcheck.cfg.example
@@ -83,7 +83,7 @@ NOTIFY_ALARM_END=TRUE
 
 [system_load_1min]
 # The system load average in the last minute
-DISABLED=True
+DISABLED=False
 ALARM_VALUE_MORE_THAN=1.0
 COMMAND=uptime
 REGEXP=.*load average: (\d+[,.]\d+), \d+[,.]\d+, \d+[,.]\d+
@@ -91,7 +91,7 @@ REGEXP=.*load average: (\d+[,.]\d+), \d+[,.]\d+, \d+[,.]\d+
 
 [system_load_5min]
 # The system load average in the last 5 minutes
-DISABLED=True
+DISABLED=False
 ALARM_VALUE_MORE_THAN=1.0
 COMMAND=uptime
 REGEXP=.*load average: \d+[,.]\d+, (\d+[,.]\d+), \d+[,.]\d+
@@ -99,7 +99,7 @@ REGEXP=.*load average: \d+[,.]\d+, (\d+[,.]\d+), \d+[,.]\d+
 
 [system_load_15min]
 # The system load average in the last 15 minutes
-DISABLED=True
+DISABLED=False
 ALARM_VALUE_MORE_THAN=1.0
 COMMAND=uptime
 REGEXP=.*load average: \d+[,.]\d+, \d+[,.]\d+, (\d+[,.]\d+)
@@ -144,18 +144,9 @@ REGEXP=Adapter \d: (.+)
 ALARM_STRING_EQUAL=off-line
 
 
-[free_ram]
-# Free ram in %
-# Shows another approach: does all the computation in the command and picks up
-# all the output (by not declaring a regexp).
-DISABLED=True
-COMMAND=free | grep Mem | awk '{print int($4/$2 * 100.0)}'
-ALARM_VALUE_LESS_THAN=20
-
-
 [available_ram]
-# Like Free ram, but shows available instead of free. You may want to use this if you use a memcache.
-DISABLED=True
+# Shows available ram in %.
+DISABLED=False
 COMMAND=free | grep Mem | awk '{print int($7/$2 * 100.0)}'
 ALARM_VALUE_LESS_THAN=20