diff --git a/src/mainboard/intel/baskingridge/acpi/thermal.asl b/src/mainboard/intel/baskingridge/acpi/thermal.asl
index 5649d87a2c..fb015d17ca 100644
--- a/src/mainboard/intel/baskingridge/acpi/thermal.asl
+++ b/src/mainboard/intel/baskingridge/acpi/thermal.asl
@@ -196,9 +196,9 @@ Scope (\_TZ)
 				Notify (\_TZ.THRM, 0x81)
 			}
 			Method (_OFF) {
-				\FLVL = 4
-				\_SB.PCI0.LPCB.SIO.ENVC.F3PS = \F4PW
-				Notify (\_TZ.THRM, 0x81)
+				// FAN4 is the minimum cooling state (idle/lowest fan speed)
+				// There is no lower state to transition to, so _OFF is a no-op
+				// to maintain proper ACPI power resource state machine semantics
 			}
 		}
 
diff --git a/src/mainboard/intel/emeraldlake2/acpi/thermal.asl b/src/mainboard/intel/emeraldlake2/acpi/thermal.asl
index af6c41e572..d5149da549 100644
--- a/src/mainboard/intel/emeraldlake2/acpi/thermal.asl
+++ b/src/mainboard/intel/emeraldlake2/acpi/thermal.asl
@@ -215,9 +215,9 @@ Scope (\_TZ)
 				Notify (\_TZ.THRM, 0x81)
 			}
 			Method (_OFF) {
-				\FLVL = 4
-				\_SB.PCI0.LPCB.SIO.ENVC.F3PS = \F4PW
-				Notify (\_TZ.THRM, 0x81)
+				// FAN4 is the minimum cooling state (idle/lowest fan speed)
+				// There is no lower state to transition to, so _OFF is a no-op
+				// to maintain proper ACPI power resource state machine semantics
 			}
 		}
 
diff --git a/src/mainboard/intel/wtm2/acpi/thermal.asl b/src/mainboard/intel/wtm2/acpi/thermal.asl
index cb0388f924..3604805245 100644
--- a/src/mainboard/intel/wtm2/acpi/thermal.asl
+++ b/src/mainboard/intel/wtm2/acpi/thermal.asl
@@ -189,8 +189,9 @@ Scope (\_TZ)
 				Notify (\_TZ.THRM, 0x81)
 			}
 			Method (_OFF) {
-				\FLVL = 4
-				Notify (\_TZ.THRM, 0x81)
+				// FAN4 is the minimum cooling state (idle/lowest fan speed)
+				// There is no lower state to transition to, so _OFF is a no-op
+				// to maintain proper ACPI power resource state machine semantics
 			}
 		}