diff --git a/src/mainboard/apple/macbookair4_2/cmos.layout b/src/mainboard/apple/macbookair4_2/cmos.layout
index 6a23ab6853..7f153a0ad7 100644
--- a/src/mainboard/apple/macbookair4_2/cmos.layout
+++ b/src/mainboard/apple/macbookair4_2/cmos.layout
@@ -18,7 +18,6 @@ entries
 # coreboot config options: cpu
 # coreboot config options: northbridge
 #432	5	e	11	gfx_uma_size
-#440	8	h	0	volume
 # SandyBridge MRC Scrambler Seed values
 896	32	r	0	mrc_scrambler_seed
 928	32	r	0	mrc_scrambler_seed_s3
diff --git a/src/mainboard/hp/snb_ivb_laptops/cmos.layout b/src/mainboard/hp/snb_ivb_laptops/cmos.layout
index 31889ad24b..f7a9390101 100644
--- a/src/mainboard/hp/snb_ivb_laptops/cmos.layout
+++ b/src/mainboard/hp/snb_ivb_laptops/cmos.layout
@@ -28,8 +28,6 @@ entries
 # coreboot config options: northbridge
 432	3	e	11	gfx_uma_size
 
-440	8	h	0	volume
-
 # SandyBridge MRC Scrambler Seed values
 896	32	r	0	mrc_scrambler_seed
 928	32	r	0	mrc_scrambler_seed_s3
diff --git a/src/mainboard/sapphire/pureplatinumh61/cmos.layout b/src/mainboard/sapphire/pureplatinumh61/cmos.layout
index 8a45f420d3..979c8e28ad 100644
--- a/src/mainboard/sapphire/pureplatinumh61/cmos.layout
+++ b/src/mainboard/sapphire/pureplatinumh61/cmos.layout
@@ -15,8 +15,6 @@ entries
 # coreboot config options: console
 395	4	e	6	debug_level
 
-400	8	h	0	volume
-
 # coreboot config options: southbridge
 408	1	e	1	nmi
 409	2	e	7	power_on_after_fail