diff --git a/src/hw/kasli_soc.md b/src/hw/kasli_soc.md
index de86983..920e941 100644
--- a/src/hw/kasli_soc.md
+++ b/src/hw/kasli_soc.md
@@ -5,4 +5,12 @@
 Check the BOOT mode switches - they both should be at SD if the Kasli-SoC going to be shipped to customer.
 POR jumper needs only for JTAG mode.
 
-![](../img/kasli_soc.jpg)
\ No newline at end of file
+![](../img/kasli_soc.jpg)
+
+## Mounting fan onto heatsink
+![](../img/kasli_soc_fan.jpg)
+1. ⚠️ Verify the fan has the **correct polarity**
+2. Place the fan on a heatsink
+3. Tap 3 threads on the heatsink using M2.5 pointy tapping screws (e.g. front panel screws)
+4. Replace the tapping screws with M2.5x14mm screws
+5. Verify the fan is secure
diff --git a/src/img/kasli_soc_fan.jpg b/src/img/kasli_soc_fan.jpg
new file mode 100644
index 0000000..ec89799
Binary files /dev/null and b/src/img/kasli_soc_fan.jpg differ