diff --git a/src/soc/intel/common/block/acpi/acpi/globalnvs.asl b/src/soc/intel/common/block/acpi/acpi/globalnvs.asl
index 826e718da8..1333857cb3 100644
--- a/src/soc/intel/common/block/acpi/acpi/globalnvs.asl
+++ b/src/soc/intel/common/block/acpi/acpi/globalnvs.asl
@@ -13,7 +13,7 @@ Name (\PICM, 0)		// IOAPIC/8259
 
 External (NVSA)
 
-OperationRegion (GNVS, SystemMemory, NVSA, 0x2000)
+OperationRegion (GNVS, SystemMemory, NVSA, 0x1000)
 Field (GNVS, ByteAcc, NoLock, Preserve)
 {
 	/* Miscellaneous */
diff --git a/src/soc/intel/denverton_ns/acpi/globalnvs.asl b/src/soc/intel/denverton_ns/acpi/globalnvs.asl
index 4725cec5f8..bf880edf62 100644
--- a/src/soc/intel/denverton_ns/acpi/globalnvs.asl
+++ b/src/soc/intel/denverton_ns/acpi/globalnvs.asl
@@ -12,7 +12,7 @@ Name(\PICM, 0)		// IOAPIC/8259
 
 
 External(NVSA)
-OperationRegion (GNVS, SystemMemory, NVSA, 0x2000)
+OperationRegion (GNVS, SystemMemory, NVSA, 0x100)
 Field (GNVS, ByteAcc, NoLock, Preserve)
 {
 	/* Miscellaneous */
diff --git a/src/soc/intel/skylake/acpi/globalnvs.asl b/src/soc/intel/skylake/acpi/globalnvs.asl
index bc99698e1c..913d2cf610 100644
--- a/src/soc/intel/skylake/acpi/globalnvs.asl
+++ b/src/soc/intel/skylake/acpi/globalnvs.asl
@@ -13,7 +13,7 @@ Name (\PICM, 0)		// IOAPIC/8259
 
 External (NVSA)
 
-OperationRegion (GNVS, SystemMemory, NVSA, 0x2000)
+OperationRegion (GNVS, SystemMemory, NVSA, 0x1000)
 Field (GNVS, ByteAcc, NoLock, Preserve)
 {
 	/* Miscellaneous */
diff --git a/src/southbridge/intel/bd82x6x/acpi/globalnvs.asl b/src/southbridge/intel/bd82x6x/acpi/globalnvs.asl
index 46096cc66b..ec193c4228 100644
--- a/src/southbridge/intel/bd82x6x/acpi/globalnvs.asl
+++ b/src/southbridge/intel/bd82x6x/acpi/globalnvs.asl
@@ -11,7 +11,7 @@ Name(\PICM, 0)		// IOAPIC/8259
  */
 
 External(NVSA)
-OperationRegion (GNVS, SystemMemory, NVSA, 0xf00)
+OperationRegion (GNVS, SystemMemory, NVSA, 0x1000)
 Field (GNVS, ByteAcc, NoLock, Preserve)
 {
 	/* Miscellaneous */
diff --git a/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl b/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl
index 482718a4ea..d95d38af10 100644
--- a/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl
+++ b/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl
@@ -12,7 +12,7 @@ Name (\PICM, 0)		// IOAPIC/8259
  */
 
 External (NVSA)
-OperationRegion (GNVS, SystemMemory, NVSA, 0xf00)
+OperationRegion (GNVS, SystemMemory, NVSA, 0x1000)
 Field (GNVS, ByteAcc, NoLock, Preserve)
 {
 	/* Miscellaneous */