diff --git a/src/mame/drivers/indigo.cpp b/src/mame/drivers/indigo.cpp
index 19b63040a12..f39d7c9ae33 100644
--- a/src/mame/drivers/indigo.cpp
+++ b/src/mame/drivers/indigo.cpp
@@ -636,5 +636,5 @@ ROM_START( indigo4k )
 ROM_END
 
 /*    YEAR  NAME      PARENT    COMPAT    MACHINE   INPUT     CLASS         INIT    COMPANY   FULLNAME */
-COMP( 1991, indigo3k, 0,        0,        indigo3k, indigo,   driver_device, 0,		"Silicon Graphics Inc", "IRIS Indigo (R4400, 150MHz, Ver. 4.0.5D Rev A)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
+COMP( 1991, indigo3k, 0,        0,        indigo3k, indigo,   driver_device, 0,		"Silicon Graphics Inc", "IRIS Indigo (R3000, 33MHz, Ver. 4.0.5D Rev A)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
 COMP( 1993, indigo4k, 0,        0,        indigo4k, indigo,   driver_device, 0, 		"Silicon Graphics Inc", "IRIS Indigo (R4400, 150MHz, Ver. 4.0.5D Rev A)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
diff --git a/src/mame/mess.lst b/src/mame/mess.lst
index f79304b08aa..c918caebe38 100644
--- a/src/mame/mess.lst
+++ b/src/mame/mess.lst
@@ -1022,8 +1022,8 @@ zslc3000 // Sharp Zaurus SL-C3000 "Spitz"
 zslc1000 // Sharp Zaurus SL-C1000 "Akita"
 
 // Silicon Graphics
-iris3130 // IP2: IRIS 3xx0, 68020, 16MHz
-4dpi   // IP6: 4D/PI, R2000, 20MHz
+sgi_ip2 // IP2: IRIS 3xx0, 68020, 16MHz
+sgi_ip6   // IP6: 4D/PI, R2000, 20MHz
 indigo3k  // IP12: Indigo 1, R3000, 33MHz
 indigo4k  // IP20: Indigo 1, R4400, 150MHz
 ip225015  // IP22: Indy, R5000, 150MHz