[AD1988_AUTO]           = "auto",
 };
 
+static struct snd_pci_quirk ad1988_cfg_tbl[] = {
+       SND_PCI_QUIRK(0x1043, 0x81f6, "Asus M2N-SLI", AD1988_6STACK_DIG),
+       {}
+};
+
 static int patch_ad1988(struct hda_codec *codec)
 {
        struct ad198x_spec *spec;
                snd_printk(KERN_INFO "patch_analog: AD1988A rev.2 is detected, enable workarounds\n");
 
        board_config = snd_hda_check_board_config(codec, AD1988_MODEL_LAST,
-                                                 ad1988_models, NULL);
+                                                 ad1988_models, ad1988_cfg_tbl);
        if (board_config < 0) {
                printk(KERN_INFO "hda_codec: Unknown model for AD1988, trying auto-probe from BIOS...\n");
                board_config = AD1988_AUTO;