diff --git a/CHANGES b/CHANGES
index a5a533f9..a4b00582 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5,6 +5,7 @@ SVN HEAD
   sensors-detect: Add Texas Instruments TMP401 detection
                   Mention the f75375s driver
                   Add SMSC LPC47B367-NC detection (no sensors)
+                  Reduce w83781d/lm78 I2C address probing range
 
 3.0.0-rc3 (2007-10-28)
   libsensors: Add a default configuration file
diff --git a/prog/detect/sensors-detect b/prog/detect/sensors-detect
index d6aaa402..6f8adecd 100755
--- a/prog/detect/sensors-detect
+++ b/prog/detect/sensors-detect
@@ -760,7 +760,7 @@ use vars qw(@pci_adapters_sis5595 @pci_adapters_sis645 @pci_adapters_sis96x);
      {
        name => "National Semiconductor LM78",
        driver => "lm78",
-       i2c_addrs => [0x20..0x2f], 
+       i2c_addrs => [0x28..0x2f], 
        i2c_detect => sub { lm78_detect(0, @_); },
        isa_addrs => [0x290],
        isa_detect => sub { lm78_isa_detect(0, @_); },
@@ -769,7 +769,7 @@ use vars qw(@pci_adapters_sis5595 @pci_adapters_sis645 @pci_adapters_sis96x);
      {
        name => "National Semiconductor LM78-J",
        driver => "lm78",
-       i2c_addrs => [0x20..0x2f], 
+       i2c_addrs => [0x28..0x2f], 
        i2c_detect => sub { lm78_detect(1, @_); },
        isa_addrs => [0x290],
        isa_detect => sub { lm78_isa_detect(1, @_); },
@@ -778,7 +778,7 @@ use vars qw(@pci_adapters_sis5595 @pci_adapters_sis645 @pci_adapters_sis96x);
      {
        name => "National Semiconductor LM79",
        driver => "lm78",
-       i2c_addrs => [0x20..0x2f], 
+       i2c_addrs => [0x28..0x2f], 
        i2c_detect => sub { lm78_detect(2, @_); },
        isa_addrs => [0x290],
        isa_detect => sub { lm78_isa_detect(2, @_); },
@@ -910,7 +910,7 @@ use vars qw(@pci_adapters_sis5595 @pci_adapters_sis645 @pci_adapters_sis96x);
        name => "Winbond W83781D",
        driver => "w83781d",
        i2c_detect => sub { w83781d_detect(0, @_); },
-       i2c_addrs => [0x20..0x2f], 
+       i2c_addrs => [0x28..0x2f], 
        isa_addrs => [0x290],
        isa_detect => sub { w83781d_isa_detect(0, @_); },
        alias_detect => sub { w83781d_alias_detect(0, @_); },
@@ -918,7 +918,7 @@ use vars qw(@pci_adapters_sis5595 @pci_adapters_sis645 @pci_adapters_sis96x);
      {
        name => "Winbond W83782D",
        driver => "w83781d",
-       i2c_addrs => [0x20..0x2f], 
+       i2c_addrs => [0x28..0x2f], 
        i2c_detect => sub { w83781d_detect(1, @_); },
        isa_addrs => [0x290],
        isa_detect => sub { w83781d_isa_detect(1, @_); },