diff --git a/Source/Core/Core/Src/HW/SystemTimers.cpp b/Source/Core/Core/Src/HW/SystemTimers.cpp
index 318b1213af..a041a3b0ad 100644
--- a/Source/Core/Core/Src/HW/SystemTimers.cpp
+++ b/Source/Core/Core/Src/HW/SystemTimers.cpp
@@ -248,10 +248,11 @@ void Init()
 			DSP_PERIOD = (int)(GetTicksPerSecond() * 0.003f);
 
 		// AyuanX: TO BE TWEAKED
-		// Now the 1500 is (was) a pure assumption
+		// Now the 1500 is a pure assumption
 		// We need to figure out the real frequency though
 
-		const int freq = 8000;
+		// FYI, WII_IPC_HLE_Interface::Update is also called in WII_IPCInterface::Write32
+		const int freq = 1500;
 		const int fields = SConfig::GetInstance().m_LocalCoreStartupParameter.
 				bVBeam ? 2 : 1;
 		IPC_HLE_PERIOD = GetTicksPerSecond() / (freq * fields);
diff --git a/Source/Core/Core/Src/HW/WII_IPC.cpp b/Source/Core/Core/Src/HW/WII_IPC.cpp
index 74af1ecdea..3651eef8ab 100644
--- a/Source/Core/Core/Src/HW/WII_IPC.cpp
+++ b/Source/Core/Core/Src/HW/WII_IPC.cpp
@@ -221,6 +221,7 @@ void Write32(const u32 _Value, const u32 _Address)
 		break;
 	}	
 
+	WII_IPC_HLE_Interface::Update();
 	UpdateInterrupts();
 }
 
diff --git a/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE.cpp b/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE.cpp
index 4aee5cb045..4149931353 100644
--- a/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE.cpp
+++ b/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE.cpp
@@ -405,6 +405,7 @@ void ExecuteCommand(u32 _Address)
 				else
 				{
 					delete pDevice;
+					pDevice = NULL;
 				}
 			}
 
@@ -435,7 +436,10 @@ void ExecuteCommand(u32 _Address)
 
 			// Don't delete hardware
 			if (!pDevice->IsHardware())
+			{
 				delete pDevice;
+				pDevice = NULL;
+			}
 		}
 		else
 		{
@@ -515,7 +519,8 @@ void ExecuteCommand(u32 _Address)
     if (CmdSuccess)
     {
 		// Generate a reply to the IPC command
-		EnqReply(_Address, SystemTimers::GetTicksPerSecond() / 150);
+		int const reply_delay = pDevice ? pDevice->GetCmdDelay(_Address) : 0;
+		EnqReply(_Address, reply_delay);
     }
 	else
 	{
diff --git a/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device.h b/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device.h
index d2907d7ee9..d52bd4f1e3 100644
--- a/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device.h
+++ b/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device.h
@@ -95,6 +95,8 @@ public:
 	virtual bool IOCtlV	(u32) { UNIMPLEMENTED_CMD(IOCtlV) }
 #undef UNIMPLEMENTED_CMD
 
+	virtual int GetCmdDelay(u32) { return 0; }
+
 	virtual u32 Update() { return 0; }
 
 	virtual bool IsHardware() { return m_Hardware; }
diff --git a/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_DI.cpp b/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_DI.cpp
index 05b365ef01..18ddc56c88 100644
--- a/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_DI.cpp
+++ b/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_DI.cpp
@@ -28,6 +28,7 @@
 #include "VolumeCreator.h"
 #include "Filesystem.h"
 #include "LogManager.h"
+#include "../HW/SystemTimers.h"
 
 #include "../../DiscIO/Src/FileMonitor.h"
 
@@ -460,3 +461,8 @@ u32 CWII_IPC_HLE_Device_di::ExecuteCommand(u32 _BufferIn, u32 _BufferInSize, u32
     // i dunno but prolly 1 is okay all the time :)
     return 1;
 }
+
+int CWII_IPC_HLE_Device_di::GetCmdDelay(u32)
+{
+	return SystemTimers::GetTicksPerSecond() / 100;
+}
\ No newline at end of file
diff --git a/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_DI.h b/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_DI.h
index 36e9f89067..0b62daefa3 100644
--- a/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_DI.h
+++ b/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_DI.h
@@ -38,6 +38,8 @@ public:
 
 	bool IOCtl(u32 _CommandAddress); 
 	bool IOCtlV(u32 _CommandAddress);
+	
+	int GetCmdDelay(u32);
 
 private: