diff --git a/src/include/device/pci_ids.h b/src/include/device/pci_ids.h
index 2d4ffb4fa0..b2bbd67e85 100644
--- a/src/include/device/pci_ids.h
+++ b/src/include/device/pci_ids.h
@@ -314,6 +314,7 @@
 
 #define PCI_DEVICE_ID_ATI_SB800_LPC             0x439D
 #define PCI_DEVICE_ID_ATI_SB800_SATA            0x4390
+#define PCI_DEVICE_ID_ATI_SB800_SATA_AHCI       0x4391
 #define PCI_DEVICE_ID_ATI_SB800_IDE             0x439C
 #define PCI_DEVICE_ID_ATI_SB800_HDA             0x4383
 #define PCI_DEVICE_ID_ATI_SB800_PCI             0x4384
diff --git a/src/southbridge/amd/cimx_wrapper/sb800/cfg.c b/src/southbridge/amd/cimx_wrapper/sb800/cfg.c
index 371f53beb4..09ff9b6c6c 100644
--- a/src/southbridge/amd/cimx_wrapper/sb800/cfg.c
+++ b/src/southbridge/amd/cimx_wrapper/sb800/cfg.c
@@ -83,7 +83,7 @@ void sb800_cimx_config(AMDSBCFG *sb_config)
   	sb_config->SATAMODE.SataMode.SataController = SATA_CONTROLLER;
 	sb_config->SATAMODE.SataMode.SataIdeCombMdPriSecOpt = 0; //0 -IDE as primary, 1 -IDE as secondary.
 								//TODO: set to secondary not take effect.
-	sb_config->SATAMODE.SataMode.SataIdeCombinedMode = 0; //IDE controlor exposed and combined mode enabled
+	sb_config->SATAMODE.SataMode.SataIdeCombinedMode = 1; //IDE controllor is hidden
 	sb_config->SATAMODE.SataMode.SATARefClkSel = SATA_CLOCK_SOURCE;
 
   	/* Azalia HDA */
diff --git a/src/southbridge/amd/cimx_wrapper/sb800/cfg.h b/src/southbridge/amd/cimx_wrapper/sb800/cfg.h
index e12a69e035..e89daca381 100644
--- a/src/southbridge/amd/cimx_wrapper/sb800/cfg.h
+++ b/src/southbridge/amd/cimx_wrapper/sb800/cfg.h
@@ -109,7 +109,7 @@
  *   NOTE: DO NOT ALLOW SATA & IDE use same mode
  */
 #ifndef SATA_MODE
-  #define SATA_MODE			NATIVE_IDE_MODE
+  #define SATA_MODE			AHCI_MODE
 #endif
 
 /**
diff --git a/src/southbridge/amd/cimx_wrapper/sb800/late.c b/src/southbridge/amd/cimx_wrapper/sb800/late.c
index e2c36b0be5..45689d7627 100644
--- a/src/southbridge/amd/cimx_wrapper/sb800/late.c
+++ b/src/southbridge/amd/cimx_wrapper/sb800/late.c
@@ -138,10 +138,9 @@ static struct device_operations sata_ops = {
 static const struct pci_driver sata_driver __pci_driver = {
 	.ops = &sata_ops,
 	.vendor = PCI_VENDOR_ID_ATI,
-	.device = PCI_DEVICE_ID_ATI_SB800_SATA, //SATA IDE Mode 4390
+	.device = PCI_DEVICE_ID_ATI_SB800_SATA_AHCI,
 };
 
-
 #if CONFIG_USBDEBUG
 static void usb_set_resources(struct device *dev)
 {