diff --git a/src/devices/machine/gt64xxx.cpp b/src/devices/machine/gt64xxx.cpp
index 001e0001fc8..c14961a3d88 100644
--- a/src/devices/machine/gt64xxx.cpp
+++ b/src/devices/machine/gt64xxx.cpp
@@ -252,10 +252,9 @@ void gt64xxx_device::device_start()
 	save_pointer(NAME(m_ram[2].data()), m_simm_size[2] / 4);
 	save_pointer(NAME(m_ram[3].data()), m_simm_size[3] / 4);
 	save_item(NAME(m_last_dma));
-	machine().save().register_postload(save_prepost_delegate(FUNC(gt64xxx_device::map_cpu_space), this));
 }
 
-void gt64xxx_device::postload()
+void gt64xxx_device::device_post_load()
 {
 	map_cpu_space();
 	remap_cb();
diff --git a/src/devices/machine/gt64xxx.h b/src/devices/machine/gt64xxx.h
index 57d79723136..cc196a096ce 100644
--- a/src/devices/machine/gt64xxx.h
+++ b/src/devices/machine/gt64xxx.h
@@ -103,7 +103,7 @@ public:
 	enum proc_addr_bank {ADDR_RAS1_0, ADDR_RAS3_2, ADDR_CS2_0, ADDR_CS3_BCS, ADDR_PCI_IO, ADDR_PCI_MEM0, ADDR_PCI_MEM1, ADDR_NUM};
 
 	void set_map(int id, const address_map_constructor &map, device_t *device);
-	void postload();
+	virtual void device_post_load(void) override;
 
 protected:
 	address_space *m_cpu_space;
diff --git a/src/devices/machine/vrc4373.cpp b/src/devices/machine/vrc4373.cpp
index a2d448998f7..7f99c290bf3 100644
--- a/src/devices/machine/vrc4373.cpp
+++ b/src/devices/machine/vrc4373.cpp
@@ -161,10 +161,9 @@ void vrc4373_device::device_start()
 	save_item(NAME(m_pci_io_laddr));
 	save_item(NAME(m_target1_laddr));
 	save_item(NAME(m_target2_laddr));
-	machine().save().register_postload(save_prepost_delegate(FUNC(vrc4373_device::postload), this));
 }
 
-void vrc4373_device::postload()
+void vrc4373_device::device_post_load()
 {
 	map_cpu_space();
 	//remap_cb();
diff --git a/src/devices/machine/vrc4373.h b/src/devices/machine/vrc4373.h
index 48d49c764ea..e77e2b3eb09 100644
--- a/src/devices/machine/vrc4373.h
+++ b/src/devices/machine/vrc4373.h
@@ -31,7 +31,7 @@ public:
 	virtual void reset_all_mappings() override;
 	virtual void map_extra(uint64_t memory_window_start, uint64_t memory_window_end, uint64_t memory_offset, address_space *memory_space,
 							uint64_t io_window_start, uint64_t io_window_end, uint64_t io_offset, address_space *io_space) override;
-	void postload(void);
+	virtual void device_post_load(void) override;
 
 	template <class Object> devcb_base &set_irq_cb(Object &&cb) { return m_irq_cb.set_callback(std::forward<Object>(cb)); }
 	void set_cpu_tag(const char *tag) { cpu_tag = tag; }
diff --git a/src/devices/machine/vrc5074.cpp b/src/devices/machine/vrc5074.cpp
index ea6158171e6..d3afc8e2c93 100644
--- a/src/devices/machine/vrc5074.cpp
+++ b/src/devices/machine/vrc5074.cpp
@@ -243,10 +243,9 @@ void vrc5074_device::device_start()
 	save_item(NAME(m_uart_irq));
 	save_item(NAME(m_irq_pins));
 	save_item(NAME(m_timer_period));
-	machine().save().register_postload(save_prepost_delegate(FUNC(vrc5074_device::postload), this));
 }
 
-void vrc5074_device::postload()
+void vrc5074_device::device_post_load()
 {
 	map_cpu_space();
 	setup_pci_space();
diff --git a/src/devices/machine/vrc5074.h b/src/devices/machine/vrc5074.h
index 30ab8b2bea0..9c9e37a9073 100644
--- a/src/devices/machine/vrc5074.h
+++ b/src/devices/machine/vrc5074.h
@@ -31,7 +31,7 @@ public:
 	virtual void reset_all_mappings() override;
 	virtual void map_extra(uint64_t memory_window_start, uint64_t memory_window_end, uint64_t memory_offset, address_space *memory_space,
 						   uint64_t io_window_start, uint64_t io_window_end, uint64_t io_offset, address_space *io_space) override;
-	void postload();
+	virtual void device_post_load(void) override;
 
 	void set_cpu_tag(const char *tag);
 	void set_sdram_size(const int index, const int size) { m_sdram_size[index] = size; };