diff --git a/Source/Project64/N64 System/Mips/Dma.cpp b/Source/Project64/N64 System/Mips/Dma.cpp
index ac0029726..956cf9274 100644
--- a/Source/Project64/N64 System/Mips/Dma.cpp	
+++ b/Source/Project64/N64 System/Mips/Dma.cpp	
@@ -19,6 +19,7 @@ CDMA::CDMA(CFlashram & FlashRam, CSram & Sram) :
 void CDMA::OnFirstDMA (void) {
 	switch (g_Rom->CicChipID()) {
 	case CIC_NUS_6101: *(DWORD *)&((g_MMU->Rdram())[0x318]) = g_MMU->RdramSize(); break;
+	case CIC_UNKNOWN:
 	case CIC_NUS_6102: *(DWORD *)&((g_MMU->Rdram())[0x318]) = g_MMU->RdramSize(); break;
 	case CIC_NUS_6103: *(DWORD *)&((g_MMU->Rdram())[0x318]) = g_MMU->RdramSize(); break;
 	case CIC_NUS_6105: *(DWORD *)&((g_MMU->Rdram())[0x3F0]) = g_MMU->RdramSize(); break;
diff --git a/Source/Project64/N64 System/N64 Class.cpp b/Source/Project64/N64 System/N64 Class.cpp
index cf2a3d30c..b8ce6a37d 100644
--- a/Source/Project64/N64 System/N64 Class.cpp	
+++ b/Source/Project64/N64 System/N64 Class.cpp	
@@ -734,6 +734,7 @@ void CN64System::InitRegisters( bool bPostPif, CMipsMemory & MMU )
 		case Europe:  case Spanish: case Australia:
 		case X_PAL:   case Y_PAL:
 			switch (g_Rom->CicChipID()) {
+			case CIC_UNKNOWN:
 			case CIC_NUS_6102:
 				m_Reg.m_GPR[5].DW=0xFFFFFFFFC0F1D859;
 				m_Reg.m_GPR[14].DW=0x000000002DE108EA;
@@ -764,6 +765,7 @@ void CN64System::InitRegisters( bool bPostPif, CMipsMemory & MMU )
 		case NTSC_BETA: case X_NTSC: case USA: case Japan:
 		default:
 			switch (g_Rom->CicChipID()) {
+			case CIC_UNKNOWN:
 			case CIC_NUS_6102:
 				m_Reg.m_GPR[5].DW=0xFFFFFFFFC95973D5;
 				m_Reg.m_GPR[14].DW=0x000000002449A366;
@@ -791,6 +793,7 @@ void CN64System::InitRegisters( bool bPostPif, CMipsMemory & MMU )
 		case CIC_NUS_6101: 
 			m_Reg.m_GPR[22].DW=0x000000000000003F; 
 			break;
+		case CIC_UNKNOWN:
 		case CIC_NUS_6102: 
 			m_Reg.m_GPR[1].DW=0x0000000000000001;
 			m_Reg.m_GPR[2].DW=0x000000000EBDA536;
@@ -849,6 +852,7 @@ void CN64System::InitRegisters( bool bPostPif, CMipsMemory & MMU )
 
 		switch (g_Rom->CicChipID()) {
 		case CIC_NUS_6101: PIF_Ram[37] = 0x06; PIF_Ram[38] = 0x3F; break;
+		case CIC_UNKNOWN:
 		case CIC_NUS_6102: PIF_Ram[37] = 0x02; PIF_Ram[38] = 0x3F; break;
 		case CIC_NUS_6103:	PIF_Ram[37] = 0x02; PIF_Ram[38] = 0x78; break;
 		case CIC_NUS_6105:	PIF_Ram[37] = 0x02; PIF_Ram[38] = 0x91; break;
diff --git a/Source/Project64/N64 System/N64 Rom Class.cpp b/Source/Project64/N64 System/N64 Rom Class.cpp
index 97d0f57cf..aeb8a7502 100644
--- a/Source/Project64/N64 System/N64 Rom Class.cpp	
+++ b/Source/Project64/N64 System/N64 Rom Class.cpp	
@@ -244,6 +244,8 @@ void CN64Rom::CalculateCicChip ( void )
 	case 0x0000011A49F60E96: m_CicChip = CIC_NUS_6105; break;
 	case 0x000000D6D5BE5580: m_CicChip = CIC_NUS_6106; break;
 	default:
+		if (bHaveDebugger())
+			g_Notify->DisplayError("Unknown CIC checksum:\n%I64d.", CRC);
 		m_CicChip = CIC_UNKNOWN; break;
 	}
 
diff --git a/Source/Project64/N64 System/N64 Rom Class.h b/Source/Project64/N64 System/N64 Rom Class.h
index 6ca9925b7..be8827f02 100644
--- a/Source/Project64/N64 System/N64 Rom Class.h	
+++ b/Source/Project64/N64 System/N64 Rom Class.h	
@@ -12,7 +12,8 @@
 
 #include "N64 Types.h"
 
-class CN64Rom 
+class CN64Rom :
+	protected CDebugSettings
 {	
 	//constant values
 	enum { ReadFromRomSection = 0x400000 };