diff --git a/hash/c128_cart.xml b/hash/c128_cart.xml
index f7ef8270592..8615198fb1b 100644
--- a/hash/c128_cart.xml
+++ b/hash/c128_cart.xml
@@ -168,7 +168,7 @@ Missing dumps:
 			<feature name="exrom" value="1" />
 
 			<dataarea name="romh" size="0x4000">
-				<rom name="partner 128" size="0x4000" status="nodump" offset="0" />
+				<rom name="partner 128" size="0x4000" crc="686a6881" sha1="53d4bcf7aff40f1642bc143626b63beb3c8478dc" offset="0" />
 			</dataarea>
 		</part>
 
diff --git a/src/emu/bus/c64/c128_partner.c b/src/emu/bus/c64/c128_partner.c
index 97a4e50b998..3b261d24796 100644
--- a/src/emu/bus/c64/c128_partner.c
+++ b/src/emu/bus/c64/c128_partner.c
@@ -21,7 +21,7 @@
 	|LS09           |
 	 |||||||||||||||
 
-    ROM     - EPROM
+    ROM     - Toshiba TMM24128AP 16Kx8 EPROM (blank label)
     RAM     - Sony CXK5864PN-15L 8Kx8 SRAM
     SW      - push button switch
     CN      - lead out to joystick port dongle
diff --git a/src/mame/machine/jvs13551.c b/src/mame/machine/jvs13551.c
index 69e0f62c655..40b669e235e 100644
--- a/src/mame/machine/jvs13551.c
+++ b/src/mame/machine/jvs13551.c
@@ -22,6 +22,24 @@ static INPUT_PORTS_START(sega_837_13551_coins)
 	PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_COIN2) PORT_WRITE_LINE_DEVICE_MEMBER(DEVICE_SELF, sega_837_13551, jvs13551_coin_2_w)
 INPUT_PORTS_END
 
+ROM_START( jvs13551 )
+	// TMP90PH44N firmwares
+	ROM_REGION( 0x8000, "jvs13551", ROMREGION_ERASE )
+	// Sega 838-13683-93
+	ROM_LOAD( "sp5001.bin",   0x0000, 0x8000, CRC(2f17e21a) SHA1(ac227ef3ca52ef17321bd60e435dba147645d8b8))
+	// Sega 838-13683-93 Rev.B
+	ROM_LOAD( "sp5001-b.bin", 0x0000, 0x8000, CRC(121693cd) SHA1(c9834aca671aff5e283ac708788c2a0f4a5bdecc))
+	// Sega 838-13683-02
+	ROM_LOAD( "sp5002-a.bin", 0x0000, 0x8000, CRC(a088df8c) SHA1(8237e9b18b8367d3f5b99b8f29c528a55c2e0fbf))
+	// Sega 837-13551-92 0007 Type1
+	ROM_LOAD( "315-6215.bin", 0x0000, 0x8000, CRC(d7c97e40) SHA1(b1ae8db332f869c4fdbbae15967baeca0bc7f57d))
+ROM_END
+
+const rom_entry *sega_837_13551::device_rom_region() const
+{
+	return ROM_NAME(jvs13551);
+}
+
 void sega_837_13551::static_set_port_tag(device_t &device, int port, const char *tag)
 {
 	sega_837_13551 &ctrl = downcast<sega_837_13551 &>(device);
@@ -33,7 +51,7 @@ ioport_constructor sega_837_13551::device_input_ports() const
 	return INPUT_PORTS_NAME(sega_837_13551_coins);
 }
 
-sega_837_13551::sega_837_13551(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : jvs_device(mconfig, SEGA_837_13551, "Sega 837-13551 I/O Board", tag, owner, clock, "sega_837_13551", __FILE__)
+sega_837_13551::sega_837_13551(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : jvs_device(mconfig, SEGA_837_13551, "Sega 837-13551 I/O Board", tag, owner, clock, "jvs13551", __FILE__)
 {
 	memset(port_tag, 0, sizeof(port_tag));
 }
diff --git a/src/mame/machine/jvs13551.h b/src/mame/machine/jvs13551.h
index 69c79fee4e9..98f095e3c1c 100644
--- a/src/mame/machine/jvs13551.h
+++ b/src/mame/machine/jvs13551.h
@@ -29,6 +29,8 @@ public:
 	sega_837_13551(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
 	static void static_set_port_tag(device_t &device, int port, const char *tag);
 
+	virtual const rom_entry *device_rom_region() const;
+
 	DECLARE_WRITE_LINE_MEMBER(jvs13551_coin_1_w);
 	DECLARE_WRITE_LINE_MEMBER(jvs13551_coin_2_w);
 	void inc_coin(int coin);
diff --git a/src/mess/drivers/sdk80.c b/src/mess/drivers/sdk80.c
index 1937a0a878f..dab269c9720 100644
--- a/src/mess/drivers/sdk80.c
+++ b/src/mess/drivers/sdk80.c
@@ -202,4 +202,4 @@ ROM_START( sdk80 )
 ROM_END
 
 /*    YEAR  NAME    PARENT  COMPAT  MACHINE    INPUT   CLASS           INIT   COMPANY   FULLNAME  FLAGS */
-COMP( 1975, sdk80,  0,       0,     sdk80,     sdk80,  driver_device,  0,     "Intel",  "SDK-80", GAME_NO_SOUND_HW | GAME_NOT_WORKING )
+COMP( 1975, sdk80,  0,       0,     sdk80,     sdk80,  driver_device,  0,     "Intel",  "SDK-80", GAME_NO_SOUND_HW )