diff --git a/src/northbridge/amd/agesa/family14/northbridge.c b/src/northbridge/amd/agesa/family14/northbridge.c
index e102252..cf67d93 100644
--- a/src/northbridge/amd/agesa/family14/northbridge.c
+++ b/src/northbridge/amd/agesa/family14/northbridge.c
@@ -552,12 +552,12 @@
 				   basek, limitk, sizek);
 
 		/* See if we need a hole from 0xa0000 (640K) to 0xbffff (768K) */
-		if ((basek < 640) && (sizek > 768)) {
+		if (basek < 640 && sizek > 768) {
 			printk(BIOS_DEBUG,"adsr - 0xa0000 to 0xbffff resource.\n");
 			ram_resource(dev, (idx | 0), basek, 640 - basek);
 			idx += 0x10;
 			basek = 768;
-			sizek = limitk - 768;
+			sizek = limitk - basek;
 		}
 
 		printk(BIOS_DEBUG,
diff --git a/src/northbridge/amd/agesa/family15tn/northbridge.c b/src/northbridge/amd/agesa/family15tn/northbridge.c
index 8c010ee..046f875 100644
--- a/src/northbridge/amd/agesa/family15tn/northbridge.c
+++ b/src/northbridge/amd/agesa/family15tn/northbridge.c
@@ -710,11 +710,11 @@
 		sizek = limitk - basek;
 
 		/* See if we need a hole from 0xa0000 (640K) to 0xbffff (768K) */
-		if ((basek < ((8*64)+(8*16))) && (sizek > ((8*64)+(16*16)))) {
-			ram_resource(dev, (idx | i), basek, ((8*64)+(8*16)) - basek);
+		if (basek < 640 && sizek > 768) {
+			ram_resource(dev, (idx | i), basek, 640 - basek);
 			idx += 0x10;
-			basek = (8*64)+(16*16);
-			sizek = limitk - ((8*64)+(16*16));
+			basek = 768;
+			sizek = limitk - basek;
 
 		}
 
diff --git a/src/northbridge/amd/agesa/family16kb/northbridge.c b/src/northbridge/amd/agesa/family16kb/northbridge.c
index a343321..0dc3d0b 100644
--- a/src/northbridge/amd/agesa/family16kb/northbridge.c
+++ b/src/northbridge/amd/agesa/family16kb/northbridge.c
@@ -722,11 +722,11 @@
 		sizek = limitk - basek;
 
 		/* See if we need a hole from 0xa0000 (640K) to 0xbffff (768K) */
-		if ((basek < ((8*64)+(8*16))) && (sizek > ((8*64)+(16*16)))) {
-			ram_resource(dev, (idx | i), basek, ((8*64)+(8*16)) - basek);
+		if (basek < 640 && sizek > 768) {
+			ram_resource(dev, (idx | i), basek, 640 - basek);
 			idx += 0x10;
-			basek = (8*64)+(16*16);
-			sizek = limitk - ((8*64)+(16*16));
+			basek = 768;
+			sizek = limitk - basek;
 		}
 
 		//printk(BIOS_DEBUG, "node %d : mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n", i, mmio_basek, basek, limitk);
diff --git a/src/northbridge/amd/pi/00730F01/northbridge.c b/src/northbridge/amd/pi/00730F01/northbridge.c
index 9889275..52364a2 100644
--- a/src/northbridge/amd/pi/00730F01/northbridge.c
+++ b/src/northbridge/amd/pi/00730F01/northbridge.c
@@ -811,10 +811,10 @@
 				   i, basek, limitk, sizek);
 
 		/* See if we need a hole from 0xa0000 (640K) to 0xfffff (1024K) */
-		if ((basek < (0xa0000 >> 10) && (sizek > (0x100000 >> 10)))) {
-			ram_resource(dev, (idx | i), basek, (0xa0000 >> 10) - basek);
+		if (basek < 640 && sizek > 1024) {
+			ram_resource(dev, (idx | i), basek, 640 - basek);
 			idx += 0x10;
-			basek = 0x100000 >> 10;
+			basek = 1024;
 			sizek = limitk - basek;
 		}