DSDT.asl should not report the AMD SB600/SB700 RTC as Intel PIIX4 compatible. The extended cmos is accessed differently for AMD and Intel RTCs. Not sure what if any OS cares about this distinction, but non-Intel compatible seems like a safer way to report the AMD RTC. Tested with Win7 on Mahogany_fam10 and kino-780am2-fam10. Signed-off-by: Scott Duplichan Index: src/mainboard/amd/dbm690t/dsdt.asl =================================================================== --- src/mainboard/amd/dbm690t/dsdt.asl (revision 6030) +++ src/mainboard/amd/dbm690t/dsdt.asl (working copy) @@ -1308,7 +1308,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/amd/mahogany/dsdt.asl =================================================================== --- src/mainboard/amd/mahogany/dsdt.asl (revision 6030) +++ src/mainboard/amd/mahogany/dsdt.asl (working copy) @@ -1324,7 +1324,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/amd/mahogany_fam10/dsdt.asl =================================================================== --- src/mainboard/amd/mahogany_fam10/dsdt.asl (revision 6030) +++ src/mainboard/amd/mahogany_fam10/dsdt.asl (working copy) @@ -1366,7 +1366,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/amd/pistachio/dsdt.asl =================================================================== --- src/mainboard/amd/pistachio/dsdt.asl (revision 6030) +++ src/mainboard/amd/pistachio/dsdt.asl (working copy) @@ -1307,7 +1307,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/amd/tilapia_fam10/dsdt.asl =================================================================== --- src/mainboard/amd/tilapia_fam10/dsdt.asl (revision 6030) +++ src/mainboard/amd/tilapia_fam10/dsdt.asl (working copy) @@ -1366,7 +1366,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/asrock/939a785gmh/dsdt.asl =================================================================== --- src/mainboard/asrock/939a785gmh/dsdt.asl (revision 6030) +++ src/mainboard/asrock/939a785gmh/dsdt.asl (working copy) @@ -1282,7 +1282,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/asus/m4a785-m/dsdt.asl =================================================================== --- src/mainboard/asus/m4a785-m/dsdt.asl (revision 6030) +++ src/mainboard/asus/m4a785-m/dsdt.asl (working copy) @@ -1366,7 +1366,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/gigabyte/ma785gmt/dsdt.asl =================================================================== --- src/mainboard/gigabyte/ma785gmt/dsdt.asl (revision 6030) +++ src/mainboard/gigabyte/ma785gmt/dsdt.asl (working copy) @@ -1366,7 +1366,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/gigabyte/ma78gm/dsdt.asl =================================================================== --- src/mainboard/gigabyte/ma78gm/dsdt.asl (revision 6030) +++ src/mainboard/gigabyte/ma78gm/dsdt.asl (working copy) @@ -1366,7 +1366,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/iei/kino-780am2-fam10/dsdt.asl =================================================================== --- src/mainboard/iei/kino-780am2-fam10/dsdt.asl (revision 6030) +++ src/mainboard/iei/kino-780am2-fam10/dsdt.asl (working copy) @@ -1366,7 +1366,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/jetway/pa78vm5/dsdt.asl =================================================================== --- src/mainboard/jetway/pa78vm5/dsdt.asl (revision 6030) +++ src/mainboard/jetway/pa78vm5/dsdt.asl (working copy) @@ -1366,7 +1366,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/kontron/kt690/dsdt.asl =================================================================== --- src/mainboard/kontron/kt690/dsdt.asl (revision 6030) +++ src/mainboard/kontron/kt690/dsdt.asl (working copy) @@ -1308,7 +1308,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/technexion/tim5690/dsdt.asl =================================================================== --- src/mainboard/technexion/tim5690/dsdt.asl (revision 6030) +++ src/mainboard/technexion/tim5690/dsdt.asl (working copy) @@ -1308,7 +1308,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2) Index: src/mainboard/technexion/tim8690/dsdt.asl =================================================================== --- src/mainboard/technexion/tim8690/dsdt.asl (revision 6030) +++ src/mainboard/technexion/tim8690/dsdt.asl (working copy) @@ -1308,7 +1308,7 @@ /* Real Time Clock Device */ Device(RTC0) { - Name(_HID, EISAID("PNP0B01")) /* AT Real Time Clock */ + Name(_HID, EISAID("PNP0B00")) /* AT Real Time Clock (not PIIX4 compatible) */ Name(_CRS, ResourceTemplate() { IRQNoFlags(){8} IO(Decode16,0x0070, 0x0070, 0, 2)