diff --git a/Source/Project64-core/N64System/Mips/MemoryVirtualMem.cpp b/Source/Project64-core/N64System/Mips/MemoryVirtualMem.cpp
index f050dbe8b..988a3ba54 100755
--- a/Source/Project64-core/N64System/Mips/MemoryVirtualMem.cpp
+++ b/Source/Project64-core/N64System/Mips/MemoryVirtualMem.cpp
@@ -770,7 +770,7 @@ bool CMipsMemoryVM::SW_NonMemory(uint32_t PAddr, uint32_t Value)
     case 0x04500000: m_AudioInterfaceHandler.Write32(PAddr, Value, 0xFFFFFFFF); break;
     case 0x04600000: m_PeripheralInterfaceHandler.Write32(PAddr, Value, 0xFFFFFFFF); break;
     case 0x04700000: m_RDRAMInterfaceHandler.Write32(PAddr, Value, 0xFFFFFFFF); break;
-    case 0x04800000: Write32SerialInterface(); break;
+    case 0x04800000: m_SerialInterfaceHandler.Write32(PAddr, Value, 0xFFFFFFFF); break;
     case 0x05000000: Write32CartridgeDomain2Address1(); break;
     case 0x08000000: Write32CartridgeDomain2Address2(); break;
     case 0x1FC00000: Write32PifRam(); break;
@@ -1232,32 +1232,6 @@ void CMipsMemoryVM::Load32Rom(void)
     }
 }
 
-void CMipsMemoryVM::Write32SerialInterface(void)
-{
-    switch (m_MemLookupAddress & 0xFFFFFFF)
-    {
-    case 0x04800000: g_Reg->SI_DRAM_ADDR_REG = m_MemLookupValue.UW[0]; break;
-    case 0x04800004:
-        g_Reg->SI_PIF_ADDR_RD64B_REG = m_MemLookupValue.UW[0];
-        g_MMU->SI_DMA_READ();
-        break;
-    case 0x04800010:
-        g_Reg->SI_PIF_ADDR_WR64B_REG = m_MemLookupValue.UW[0];
-        g_MMU->SI_DMA_WRITE();
-        break;
-    case 0x04800018:
-        g_Reg->MI_INTR_REG &= ~MI_INTR_SI;
-        g_Reg->SI_STATUS_REG &= ~SI_STATUS_INTERRUPT;
-        g_Reg->CheckInterrupts();
-        break;
-    default:
-        if (HaveDebugger())
-        {
-            g_Notify->BreakPoint(__FILE__, __LINE__);
-        }
-    }
-}
-
 void CMipsMemoryVM::Write32CartridgeDomain2Address1(void)
 {
     // 64DD registers
diff --git a/Source/Project64-core/N64System/Mips/MemoryVirtualMem.h b/Source/Project64-core/N64System/Mips/MemoryVirtualMem.h
index da3a929ca..1bd2c2872 100644
--- a/Source/Project64-core/N64System/Mips/MemoryVirtualMem.h
+++ b/Source/Project64-core/N64System/Mips/MemoryVirtualMem.h
@@ -147,7 +147,6 @@ private:
     static void Load32PifRam(void);
     static void Load32Rom(void);
 
-    static void Write32SerialInterface(void);
     static void Write32CartridgeDomain2Address1(void);
     static void Write32CartridgeDomain2Address2(void);
     static void Write32PifRam(void);