diff --git a/V_SERIAL.asm b/V_SERIAL.asm
index 9187d48..c3c229f 100644
--- a/V_SERIAL.asm
+++ b/V_SERIAL.asm
@@ -12,12 +12,11 @@
 
 VBOARD_V600  EQU $01
 VBOARD_V500  EQU $02
-VBOARD_V4    EQU $03
-VBOARD_V666  EQU $04
+VBOARD_V4FB  EQU $03
+VBOARD_V4ID  EQU $04
 VBOARD_V4SA  EQU $05
 VBOARD_V1200 EQU $06
-VBOARD_V4000 EQU $07
-VBOARD_VCD32 EQU $08
+VBOARD_V4MC  EQU $07
 
 ;----------------------------------------------------------