diff --git a/boards/alphax_4ch-f.230202/board/alphax_4ch-f-BOM.20230331.csv b/boards/alphax_4ch-f.230202/board/alphax_4ch-f-BOM.20230331.csv
index 0d0161120..b94208e91 100644
--- a/boards/alphax_4ch-f.230202/board/alphax_4ch-f-BOM.20230331.csv
+++ b/boards/alphax_4ch-f.230202/board/alphax_4ch-f-BOM.20230331.csv
@@ -105,7 +105,7 @@ Comment,Designator,Footprint,LCSC Part #
 "470k","R470","R0402","C25790"
 "33k","R474","R0402","C25779"
 "LMV321IDBVR","U470, U471","SOT23-5","C7972"
-"STM32F407ZGT6","U105","LQFP144","C19156"
+"STM32F427","U105","LQFP144","C117816"
 "MWSA0503S-100MT","L421","MWSA0503","C408412"
 "nSMD035-16V","F101","SMD1206","C70072"
 "nSMD050-24V","F410, F300","SMD1206","C70076"
diff --git a/bom_replace_alphax_4ch-g.csv b/bom_replace_alphax_4ch-g.csv
index 9467df956..c65e615b3 100644
--- a/bom_replace_alphax_4ch-g.csv
+++ b/bom_replace_alphax_4ch-g.csv
@@ -8,9 +8,6 @@ R105,
 # remove jumper resistor connecting BOOT1 with A22 input line, because we use STM32F4
 R131,
 
-# STM32
-U105,"STM32F407ZGT6","LQFP144","C19156"
-
 #Alpha4Ch: We don't use VREF1 & VREF2, so we don't need these resistors
 R212,
 R213,