diff --git a/src/hw/kasli.md b/src/hw/kasli.md
index 0ab5feb..b30fe9c 100644
--- a/src/hw/kasli.md
+++ b/src/hw/kasli.md
@@ -2,7 +2,7 @@
 
 ## Mounting fan onto heatsink
 ![](../img/kasli_fan.jpg)
-1. ⚠️ Verify the fan has the **correct polarity**
+1. ⚠️ Verify the fan has the **correct polarity (powering on with wrong polarity will burn the MOSFET in series💥)**
 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
diff --git a/src/hw/kasli_soc.md b/src/hw/kasli_soc.md
index 920e941..253cb35 100644
--- a/src/hw/kasli_soc.md
+++ b/src/hw/kasli_soc.md
@@ -9,7 +9,7 @@ POR jumper needs only for JTAG mode.
 
 ## Mounting fan onto heatsink
 ![](../img/kasli_soc_fan.jpg)
-1. ⚠️ Verify the fan has the **correct polarity**
+1. ⚠️ Verify the fan has the **correct polarity (powering on with wrong polarity will burn the MOSFET in series💥)**
 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