diff --git a/circuit/mainboard/mainboard.sch b/circuit/mainboard/mainboard.sch
index 44e92e7..943a955 100644
--- a/circuit/mainboard/mainboard.sch
+++ b/circuit/mainboard/mainboard.sch
@@ -1,4 +1,5 @@
 EESchema Schematic File Version 4
+LIBS:mainboard-cache
 EELAYER 26 0
 EELAYER END
 $Descr A4 11693 8268
@@ -30,7 +31,7 @@ U 1 1 5C35F2D7
 P 1950 5850
 F 0 "U1" H 1950 6828 50  0000 C CNN
 F 1 "74HC245" H 1950 6737 50  0000 C CNN
-F 2 "" H 1950 5850 50  0001 C CNN
+F 2 "Package_DIP:DIP-20_W7.62mm_LongPads" H 1950 5850 50  0001 C CNN
 F 3 "http://www.ti.com/lit/gpn/sn74HC245" H 1950 5850 50  0001 C CNN
 	1    1950 5850
 	1    0    0    -1  
@@ -41,7 +42,7 @@ U 1 1 5C35F42C
 P 4850 4600
 F 0 "U2" H 4850 5478 50  0000 C CNN
 F 1 "CD4051B" H 4850 5387 50  0000 C CNN
-F 2 "" H 5000 3850 50  0001 L CNN
+F 2 "Package_DIP:DIP-16_W7.62mm_LongPads" H 5000 3850 50  0001 L CNN
 F 3 "http://www.ti.com/lit/ds/symlink/cd4052b.pdf" H 4830 4700 50  0001 C CNN
 	1    4850 4600
 	1    0    0    -1  
@@ -63,7 +64,7 @@ U 1 1 5C35F892
 P 7800 1350
 F 0 "U3" H 7800 2128 50  0000 C CNN
 F 1 "74LS138" H 7800 2037 50  0000 C CNN
-F 2 "" H 7800 1350 50  0001 C CNN
+F 2 "Package_DIP:DIP-16_W7.62mm_LongPads" H 7800 1350 50  0001 C CNN
 F 3 "http://www.ti.com/lit/gpn/sn74LS138" H 7800 1350 50  0001 C CNN
 	1    7800 1350
 	1    0    0    -1