diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 80bbead3ec3a..395240cb3666 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1458,7 +1458,23 @@ static bool ahci_broken_lpm(struct pci_dev *pdev)
 				DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 				DMI_MATCH(DMI_PRODUCT_VERSION, "ASUSPRO D840MB_M840SA"),
 			},
-			/* 320 is broken, there is no known good version yet. */
+			/* 320 is broken, there is no known good version. */
+		},
+		{
+			/*
+			 * AMD 500 Series Chipset SATA Controller [1022:43eb]
+			 * on this motherboard timeouts on ports 5 and 6 when
+			 * LPM is enabled, at least with WDC WD20EFAX-68FB5N0
+			 * hard drives. LPM with the same drive works fine on
+			 * all other ports on the same controller.
+			 */
+			.matches = {
+				DMI_MATCH(DMI_BOARD_VENDOR,
+					  "ASUSTeK COMPUTER INC."),
+				DMI_MATCH(DMI_BOARD_NAME,
+					  "ROG STRIX B550-F GAMING (WI-FI)"),
+			},
+			/* 3621 is broken, there is no known good version. */
 		},
 		{ }	/* terminate list */
 	};