diff --git a/pcsx2/Interpreter.cpp b/pcsx2/Interpreter.cpp
index c6b557d251..49287200d1 100644
--- a/pcsx2/Interpreter.cpp
+++ b/pcsx2/Interpreter.cpp
@@ -391,10 +391,17 @@ static void intExecute()
 static void intExecuteBiosStub()
 {
 	g_EEFreezeRegs = false;
-	Console.WriteLn( Color_StrongGreen, "(R5900-Interp) Executing Bios Stub..." );
-	while( (cpuRegs.pc != 0x00200008) && (cpuRegs.pc != 0x00100008) ) {
-		execI();
-	}
+
+	// We need to be weary of events that could occur during vsyncs, which means
+	// making sure to exit this function for ExitCpuExecute.  The calling function
+	// will update UI status, and then re-enter if the bios stub execution criteria
+	// wasn't met yet.
+
+	try {
+		while( (cpuRegs.pc != 0x00200008) && (cpuRegs.pc != 0x00100008) ) {
+			execI();
+		}
+	} catch( Exception::ExitCpuExecute& ) { }
 
 	// ... some maual bios injection hack from a century ago, me thinks.  Leaving the
 	// code intact for posterity. --air
@@ -409,8 +416,6 @@ static void intExecuteBiosStub()
 	//        fwrite(PS2MEM_PSX, 0x80000, 1, f);
 	//        fclose(f);
 	//    }
-
-	Console.WriteLn( Color_StrongGreen, "(R5900-Interp) Execute Bios Stub Complete");
 }
 
 static void intCheckExecutionState()
diff --git a/pcsx2/System/SysCoreThread.cpp b/pcsx2/System/SysCoreThread.cpp
index e1c033b016..23d995fe7f 100644
--- a/pcsx2/System/SysCoreThread.cpp
+++ b/pcsx2/System/SysCoreThread.cpp
@@ -249,7 +249,7 @@ void SysCoreThread::_reset_stuff_as_needed()
 	}
 
 	if( m_resetVsyncTimers )
-	{
+{
 		UpdateVSyncRate();
 		frameLimitReset();
 		m_resetVsyncTimers = false;
@@ -313,7 +313,19 @@ void SysCoreThread::CpuInitializeMess()
 		// effects).
 
 		SetCPUState( EmuConfig.Cpu.sseMXCSR, EmuConfig.Cpu.sseVUMXCSR );
-		Cpu->ExecuteBiosStub();
+
+		Console.WriteLn( Color_StrongGreen, "(PCSX2 Core) Executing Bios Stub..." );
+
+		do {
+			// Even the BiosStub invokes vsyncs, so we need to be weary of state
+			// changes and premature loop exits, and re-enter the stub executer until
+			// the critera is met.
+
+			StateCheckInThread();
+			Cpu->ExecuteBiosStub();
+		} while( cpuRegs.pc != 0x00200008 && cpuRegs.pc != 0x00100008 );
+
+		Console.WriteLn( Color_StrongGreen, "(PCSX2 Core) Execute Bios Stub Complete");
 		loadElfFile( elf_file );
 	}
 	
diff --git a/pcsx2/x86/ix86-32/iR5900-32.cpp b/pcsx2/x86/ix86-32/iR5900-32.cpp
index 8bfc45bbf0..1ac4733ced 100644
--- a/pcsx2/x86/ix86-32/iR5900-32.cpp
+++ b/pcsx2/x86/ix86-32/iR5900-32.cpp
@@ -735,16 +735,9 @@ static void recExecute()
 
 static void recExecuteBiosStub()
 {
-	Console.WriteLn( Color_StrongGreen, "(R5900-32) Executing Bios Stub..." );
 	g_ExecBiosHack = true;
-
 	recExecute();
-	pxAssertDev( cpuRegs.pc == 0x00200008 || cpuRegs.pc == 0x00100008,
-		"Bios stub execution terminated on an abnormal address."
-	);
-
 	g_ExecBiosHack = false;
-	Console.WriteLn( Color_StrongGreen, "(R5900-32) Execute Bios Stub Complete");
 
 	// Reset the EErecs here, because the bios generates "slow" blocks that have
 	// g_ExecBiosHack checks in them.  This deletes them so that the recs replace them