diff --git a/Source/Core/Core/Src/Boot/Boot.cpp b/Source/Core/Core/Src/Boot/Boot.cpp
index b11b237285..961857e5b7 100644
--- a/Source/Core/Core/Src/Boot/Boot.cpp
+++ b/Source/Core/Core/Src/Boot/Boot.cpp
@@ -109,6 +109,8 @@ void CBoot::EmulatedBIOS(bool _bDebug)
 	UReg_MSR& m_MSR = ((UReg_MSR&)PowerPC::ppcState.msr);
 	m_MSR.FP = 1;
 
+	Memory::Clear();
+
 	//TODO: Game iso info to 0x80000000 according to yagcd - or does apploader do this?
 
 	Memory::Write_U32(0x4c000064,	0x80000300);	// write default DFI Handler:		rfi
diff --git a/Source/Core/Core/Src/HW/Memmap.cpp b/Source/Core/Core/Src/HW/Memmap.cpp
index 3e9660a653..3c3ffa7419 100644
--- a/Source/Core/Core/Src/HW/Memmap.cpp
+++ b/Source/Core/Core/Src/HW/Memmap.cpp
@@ -581,11 +581,13 @@ bool Shutdown()
 void Clear()
 {
 	if (m_pRAM)
-		memset(m_pRAM,0,RAM_SIZE);
+		memset(m_pRAM, 0, RAM_SIZE);
 	if (m_pL1Cache)
-		memset(m_pL1Cache,0,L1_CACHE_SIZE);
+		memset(m_pL1Cache, 0, L1_CACHE_SIZE);
 	if (m_pEFB)
-		memset(m_pEFB,0,EFB_SIZE);
+		memset(m_pEFB, 0, EFB_SIZE);
+	if (Core::GetStartupParameter().bWii && m_pEXRAM)
+		memset(m_pEXRAM, 0, EXRAM_SIZE);
 }