diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index d2673af..947b53b 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -475,6 +475,14 @@ static struct dmi_system_id __initdata pci_reboot_dmi_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 790"),
 		},
 	},
+	{	/* Handle problems with rebooting on the OptiPlex 990. */
+		.callback = set_pci_reboot,
+		.ident = "Dell OptiPlex 990",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 990"),
+		},
+	},
 	{ }
 };