Which Macs cannot upgrade to Mountain Lion?

As everyone already know, Mountain Lion was released today. I am eager to get my Mac ready for Mountain Lion, but I know that a number of Macs do not support Mountain Lion. Is there a list of Macs that won’t support OS X Mountain Lion?


Apple said the following Macs will run Mountain Lion:

  • iMac (Mid 2007 or newer)
  • MacBook (Late 2008 Aluminum, or Early 2009 or newer)
  • MacBook Pro (Mid/Late 2007 or newer)
  • MacBook Air (Late 2008 or newer)
  • Mac mini (Early 2009 or newer)
  • Mac Pro (Early 2008 or newer)
  • Xserve (Early 2009)

So the complement of this list are not supported to run Mountain Lion (as far as I can tell; edit this list to add or subtract models as appropriate; you may be able to get it running on an unsupported machine):

  • Macintosh 128K

  • Macintosh 512K

  • Macintosh 128K (revised)

  • Macintosh XL

  • Macintosh Plus

  • Macintosh 512Ke

  • Macintosh Plus (Platinum)

  • Macintosh SE

  • Macintosh II

  • Macintosh IIx

  • Macintosh SE/30

  • Macintosh IIcx

  • Macintosh SE FDHD

  • Macintosh IIci

  • Macintosh Portable

  • Macintosh IIfx

  • Macintosh LC

  • Macintosh Classic

  • Macintosh IIsi

  • Macintosh Portable (backlit screen)

  • Macintosh Classic II

  • Quadra 700

  • Quadra 900

  • PowerBook 100

  • PowerBook 140

  • PowerBook 170

  • Macintosh LC II

  • Quadra 950

  • PowerBook 145

  • Macintosh IIvi

  • Macintosh IIvx

  • PowerBook 160

  • PowerBook 180

  • PowerBook Duo 210

  • PowerBook Duo 230

  • Macintosh LC III / III+

  • Macintosh Color Classic

  • Centris 610

  • Centris 650

  • Quadra 800

  • PowerBook 165c

  • Workgroup Server 80

  • Workgroup Server 95

  • PowerBook 145b

  • PowerBook 180c

  • Macintosh LC 520

  • Workgroup Server 60

  • Centris / Quadra 660AV

  • Quadra 840AV

  • PowerBook 165

  • Macintosh Color Classic II

  • Macintosh TV

  • Quadra 605

  • Quadra 610

  • Quadra 650

  • PowerBook Duo 250

  • PowerBook Duo 270c

  • Macintosh LC 550

  • Macintosh LC 575

  • Power Macintosh 6100

  • Power Macintosh 7100

  • Power Macintosh 8100

  • Workgroup Server 6150

  • Workgroup Server 8150

  • Workgroup Server 9150

  • PowerBook 520/c

  • PowerBook 540/c

  • PowerBook 550

  • PowerBook Duo 280

  • PowerBook Duo 280c

  • Quadra 630

  • PowerBook 150

  • Power Macintosh 6200 / 6300

  • Macintosh LC 580

  • Performa 5200

  • Power Macintosh 9500

  • Power Macintosh 7200

  • Power Macintosh 7500

  • Power Macintosh 8500

  • PowerBook 190

  • PowerBook 5300

  • PowerBook Duo 2300c

  • Workgroup Server 7250

  • Workgroup Server 8550

  • Performa 5260 / 5300

  • Performa 5400

  • Power Macintosh 7600

  • Performa 6360

  • Performa 6400

  • Power Macintosh 4400

  • PowerBook 1400

  • Power Macintosh 5500

  • Power Macintosh 6500

  • Power Macintosh 7300

  • Power Macintosh 8600

  • Power Macintosh 9600

  • PowerBook 3400

  • Twentieth Anniversary Macintosh

  • Workgroup Server 7350

  • Workgroup Server 9650

  • PowerBook 2400c

  • Power Macintosh G3 desktop

  • Power Macintosh G3 minitower

  • PowerBook G3

  • Power Macintosh G3 AIO

  • Macintosh Server G3

  • PowerBook G3 series

  • iMac G3

  • Power Macintosh G3 (Blue & White)

  • Macintosh Server G3 (Blue & White)

  • PowerBook G3 ("Lombard")

  • iBook

  • Macintosh Server G4

  • iMac (slot loading)

  • Power Mac G4 Graphite

  • PowerBook ("Pismo")

  • Power Mac G4 Cube

  • iBook (FireWire)

  • PowerBook G4 Titanium

  • iBook (white)

  • Power Mac G4 Quicksilver

  • Server G4 Quicksilver

  • iMac G4 15"

  • iBook (14")

  • eMac

  • Xserve

  • iMac G4 17"

  • Power Mac G4 MDD

  • Macintosh Server G4 MDD

  • PowerBook G4 Aluminum (12")

  • PowerBook G4 Aluminum (17")

  • Xserve slot loading

  • Xserve Cluster Node

  • Power Mac G5

  • PowerBook G4 Aluminum (15")

  • iBook G4 (12" / 14")

  • iMac G4 20"

  • Xserve G5

  • Xserve Cluster Node G5 Xserve

  • Power Mac G5 FX

  • iMac G5 17"

  • iMac G5 20" iMac

  • Mac mini

  • Power Mac G5 dual core

  • iMac Core Duo

  • MacBook Pro (15")

  • Mac mini Core Solo

  • Mac mini Core Duo

  • MacBook Pro (17")

  • MacBook (Late 2008 plastic)

  • Xserve (Intel) (Late 2006)

  • MacBook (Late 2006)

  • Mac mini Core 2 Duo

  • MacBook (Late 2007)

  • Xserve Harpertown

  • MacBook Penryn

  • 1st generation MacBook Air (early 2008)