diff --git a/src/bios/exp/FUNC_SERVICE.asm b/src/bios/exp/FUNC_SERVICE.asm
index 58217c3..42b5d90 100644
--- a/src/bios/exp/FUNC_SERVICE.asm
+++ b/src/bios/exp/FUNC_SERVICE.asm
@@ -376,13 +376,21 @@ REINIT:		DEC	B
 ;[x]
 .HardReset:
         DI
+	LD	A,SYS_PORT.CNF_0
+	OUT	(SYS_PORT.ROM),A
+	;
+	LD	A,Z84.REG.Misc_Ctrl
+	OUT	(Z84.SYS.Control),A
+	LD	A,%0000'0011		; CS1/CS0 enabled		
+	OUT	(Z84.SYS.Data),A
+	;
         LD      A,DCP_PAGE
         OUT     (SLOT1),A                                               ; set DCP page
         LD      A,ACEX.RESET
         LD      (#4400),A                                               ; open for WR
 .loop:  LD      BC,#0100                                                ; цикл сброса
         OUT     (C),C
-        LD      B,0
+        LD      B,C
         OUT     (C),C
         JR      .loop                                                   ; полностью зациклить!
 ;