diff -ruN linux-2.6.24-rc7_org/drivers/ata/ahci.c linux-2.6.24-rc7_new/drivers/ata/ahci.c
--- linux-2.6.24-rc7_org/drivers/ata/ahci.c	2008-01-23 14:43:57.000000000 +0800
+++ linux-2.6.24-rc7_new/drivers/ata/ahci.c	2008-01-23 14:44:08.000000000 +0800
@@ -424,7 +424,7 @@
 	/* board_ahci_sb600 */
 	{
 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
-				 AHCI_HFLAG_32BIT_ONLY | AHCI_HFLAG_NO_PMP),
+				 AHCI_HFLAG_NO_PMP),
 		.flags		= AHCI_FLAG_COMMON,
 		.link_flags	= AHCI_LFLAG_COMMON,
 		.pio_mask	= 0x1f, /* pio0-4 */
diff -ruN linux-2.6.24-rc7_org/drivers/pci/quirks.c linux-2.6.24-rc7_new/drivers/pci/quirks.c
--- linux-2.6.24-rc7_org/drivers/pci/quirks.c	2008-01-23 14:44:53.000000000 +0800
+++ linux-2.6.24-rc7_new/drivers/pci/quirks.c	2008-01-23 14:45:00.000000000 +0800
@@ -1623,6 +1623,7 @@
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7910, quirk_disable_all_msi);//RS690
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
 
 /* Disable MSI on chipsets that are known to not support it */