diff --git a/rpcs3/Emu/Cell/Modules/cellGcmSys.cpp b/rpcs3/Emu/Cell/Modules/cellGcmSys.cpp
index ee14edba6e..ebfe49c40c 100644
--- a/rpcs3/Emu/Cell/Modules/cellGcmSys.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellGcmSys.cpp
@@ -399,7 +399,7 @@ s32 _cellGcmInitBody(vm::pptr<CellGcmContextData> context, u32 cmdSize, u32 ioSi
 	// Create contexts
 
 	u32 rsx_ctxaddr = 0;
-	for (u32 addr = 0x40000000; addr < 0xC0000000; addr += 0x10000000)
+	for (u32 addr = 0x30000000; addr < 0xC0000000; addr += 0x10000000)
 	{
 		if (vm::map(addr, 0x10000000, 0x400))
 		{
diff --git a/rpcs3/Emu/Cell/lv2/sys_mmapper.cpp b/rpcs3/Emu/Cell/lv2/sys_mmapper.cpp
index 86f54df6ba..2936e867eb 100644
--- a/rpcs3/Emu/Cell/lv2/sys_mmapper.cpp
+++ b/rpcs3/Emu/Cell/lv2/sys_mmapper.cpp
@@ -45,7 +45,7 @@ error_code sys_mmapper_allocate_address(u64 size, u64 flags, u64 alignment, vm::
 	case 0x40000000:
 	case 0x80000000:
 	{
-		for (u64 addr = ::align<u64>(0x40000000, alignment); addr < 0xC0000000; addr += alignment)
+		for (u64 addr = ::align<u64>(0x30000000, alignment); addr < 0xC0000000; addr += alignment)
 		{
 			if (const auto area = vm::map(static_cast<u32>(addr), static_cast<u32>(size), flags))
 			{
@@ -272,7 +272,7 @@ error_code sys_mmapper_map_shared_memory(u32 addr, u32 mem_id, u64 flags)
 
 	const auto area = vm::get(vm::any, addr);
 
-	if (!area || addr < 0x40000000 || addr >= 0xC0000000)
+	if (!area || addr < 0x30000000 || addr >= 0xC0000000)
 	{
 		return CELL_EINVAL;
 	}
@@ -320,7 +320,7 @@ error_code sys_mmapper_search_and_map(u32 start_addr, u32 mem_id, u64 flags, vm:
 
 	const auto area = vm::get(vm::any, start_addr);
 
-	if (!area || start_addr < 0x40000000 || start_addr >= 0xC0000000)
+	if (!area || start_addr < 0x30000000 || start_addr >= 0xC0000000)
 	{
 		return {CELL_EINVAL, start_addr};
 	}
@@ -353,7 +353,7 @@ error_code sys_mmapper_unmap_shared_memory(u32 addr, vm::ptr<u32> mem_id)
 
 	const auto area = vm::get(vm::any, addr);
 
-	if (!area || addr < 0x40000000 || addr >= 0xC0000000)
+	if (!area || addr < 0x30000000 || addr >= 0xC0000000)
 	{
 		return {CELL_EINVAL, addr};
 	}
diff --git a/rpcs3/Emu/Cell/lv2/sys_rsx.cpp b/rpcs3/Emu/Cell/lv2/sys_rsx.cpp
index c45e8d8cbc..13185cd951 100644
--- a/rpcs3/Emu/Cell/lv2/sys_rsx.cpp
+++ b/rpcs3/Emu/Cell/lv2/sys_rsx.cpp
@@ -446,7 +446,7 @@ s32 sys_rsx_device_map(vm::ptr<u64> dev_addr, vm::ptr<u64> a2, u32 dev_id)
 		return CELL_EINVAL; // sys_rsx_device_map called twice
 	}
 
-	for (u32 addr = 0x40000000; addr < 0xC0000000; addr += 0x10000000)
+	for (u32 addr = 0x30000000; addr < 0xC0000000; addr += 0x10000000)
 	{
 		if (vm::map(addr, 0x10000000, 0x400))
 		{
diff --git a/rpcs3/Emu/Cell/lv2/sys_vm.cpp b/rpcs3/Emu/Cell/lv2/sys_vm.cpp
index ca882350c3..41fcd3420a 100644
--- a/rpcs3/Emu/Cell/lv2/sys_vm.cpp
+++ b/rpcs3/Emu/Cell/lv2/sys_vm.cpp
@@ -21,7 +21,7 @@ error_code sys_vm_memory_map(u32 vsize, u32 psize, u32 cid, u64 flag, u64 policy
 	}
 
 	// Look for unmapped space (roughly)
-	for (u32 found = 0x40000000; found <= 0xC0000000 - vsize; found += 0x1000000)
+	for (u32 found = 0x30000000; found <= 0xC0000000 - vsize; found += 0x1000000)
 	{
 		// Try to map
 		if (const auto area = vm::map(found, vsize, flag))
diff --git a/rpcs3/Emu/Memory/vm.cpp b/rpcs3/Emu/Memory/vm.cpp
index f45f0fc914..ac36c8485b 100644
--- a/rpcs3/Emu/Memory/vm.cpp
+++ b/rpcs3/Emu/Memory/vm.cpp
@@ -808,7 +808,6 @@ namespace vm
 				std::make_shared<block_t>(0xC0000000, 0x10000000), // video
 				std::make_shared<block_t>(0xD0000000, 0x10000000), // stack
 				std::make_shared<block_t>(0xE0000000, 0x20000000), // SPU reserved
-				std::make_shared<block_t>(0x30000000, 0x10000000), // main extend
 			};
 		}
 	}
diff --git a/rpcs3/Emu/System.cpp b/rpcs3/Emu/System.cpp
index 430d8e3636..cf15fbb1c6 100644
--- a/rpcs3/Emu/System.cpp
+++ b/rpcs3/Emu/System.cpp
@@ -1304,7 +1304,7 @@ void Emulator::Resume()
 
 		std::string dump;
 
-		for (u32 i = 0x10000; i < 0x40000000;)
+		for (u32 i = 0x10000; i < 0x30000000;)
 		{
 			if (vm::check_addr(i))
 			{