diff --git a/Testing.md b/Testing.md
index 40b52ee..fb07232 100644
--- a/Testing.md
+++ b/Testing.md
@@ -25,7 +25,7 @@ Documentation:
 
 #### Driver EG25-G
 
-Quectel application Internet connection
+Quectel application Internet connection:
 
 ```bash
 sudo ./quectel-CM  -s ctnet &
@@ -36,4 +36,12 @@ ping -I eth1 www.google.com
 * [Cellular modem hardware design](https://nextcloud.spirirobotics.com/f/3971)
 * [Cellular modem PPP](https://nextcloud.spirirobotics.com/f/3970)
 * [Cellular modem AT commands](https://nextcloud.spirirobotics.com/f/3968)
-* [Cellular modem GNSS AT commands](https://nextcloud.spirirobotics.com/f/3969)
\ No newline at end of file
+* [Cellular modem GNSS AT commands](https://nextcloud.spirirobotics.com/f/3969)
+
+#### Fan
+
+Turn on the fan
+
+```bash
+sudo jetson_clocks --fan
+```